AC Power
For Business-Critical Continuity
Liebert NX™ UPS
Installation Manual–10-30kVA, 208V, 60Hz
TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
GLOSSARY OF SYMBOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1.0
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.1
1.2
External Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Internal Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2.1
1.3
Preliminary Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3.1
1.4
Identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
UPS Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.4.1
1.4.2
1.4.3
1.5
1.6
Storing for Delayed Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Positioning the UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Environmental Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Special Considerations for 1+N Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Considerations in Moving the NX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Mechanical Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.6.1
1.6.2
1.6.3
1.6.4
Clearances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Floor Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cable Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Cabinets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
7
7
8
2.0
ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
2.1
Power Cabling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1.1
2.1.2
2.1.3
2.1.4
2.1.5
2.1.6
2.1.7
2.2
Control Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.2.1
2.3
Cable Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
UPS Input Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Cabling Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Safety Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Protective Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Cabling Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Monitor Board Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Dry Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.3.1
2.3.2
2.3.3
2.3.4
2.3.5
Input Dry Contacts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance Bypass Cabinet Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BCB Box Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Dry Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EPO Input—Optional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15
16
16
17
17
3.0
BATTERY INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.1
3.2
3.3
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
UPS Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
i
3.4
External Battery Cabinet Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.4.1
3.4.2
3.4.3
3.4.4
Matching Battery Cabinets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the Battery Cabinet to the UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20
20
22
24
3.5
Non-Standard Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.0
MAINTENANCE BYPASS CABINET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.1
4.2
4.3
4.4
4.5
4.6
Bypass Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Normal (UPS) Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bypass Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Locating the Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cable Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.6.1
4.6.2
4.6.3
25
25
26
26
26
26
Wiring Preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Power Cable Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Input/Output Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.7
Bolting Cabinets Together . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.0
OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.1
Load Bus Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.1.1
5.1.2
5.2
Configuring Parallel System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.2.1
5.2.2
5.2.3
5.2.4
5.3
Performance Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
DBS Cable and Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Features of Parallel System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Principles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation Modes Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31
31
32
32
Installing Parallel System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.3.1
5.3.2
5.3.3
5.3.4
5.3.5
5.3.6
5.3.7
Conditions for Parallel System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabinet Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preliminary Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Protective Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parallel Control Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Emergency Power Off (EPO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32
32
32
32
33
33
35
5.4
Battery Circuit Breaker Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.0
UPS SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.1
6.2
6.3
6.4
Conformity and Standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPS Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPS Mechanical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPS Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
38
38
38
39
6.4.1
6.4.2
6.4.3
6.4.4
6.4.5
40
40
40
41
41
Battery Manufacturers and Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Rectifier. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC Intermediate Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inverter Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bypass Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ii
7.0
8.0
INSTALLATION DRAWINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
SPECIFICATIONS AND TECHNICAL DATA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
8.1
8.2
Lug Size and Torque Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Cable Lengths: Floor to Connection Point Inside UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
FIGURES
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14
Figure 15
Figure 16
Figure 17
Figure 18
Figure 19
Figure 20
Figure 21
Figure 22
Figure 23
Figure 24
Figure 25
Figure 26
Figure 27
Figure 28
Figure 29
Figure 30
Figure 31
Figure 32
Figure 33
Figure 34
Figure 35
Figure 36
Figure 37
Figure 38
Figure 39
Figure 40
Figure 41
Figure 42
Figure 43
Figure 44
Figure 45
Cabinet arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Single module block diagram—dual input configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Input busbars . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Battery fuses and connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Ground and neutral busbar connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Monitor board U2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Auxiliary terminal block detail (Monitoring Board) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Input dry contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Jumper connection for BCB interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Output dry contacts and EPO wiring for firmware before M170 . . . . . . . . . . . . . . . . . . . . . . . . . . 17
EPO wiring for firmware M200 or later . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Battery cabinet—details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Narrow battery cabinet, 27 in. (690mm) - rear view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Wide battery cabinet, 57 in. (1488mm) - front view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Internal cable wiring from battery cabinet to Liebert NX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Battery tray and supports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Single UPS with external Maintenance Bypass Cabinet—typical configuration . . . . . . . . . . . . . 25
Maintenance Bypass Cabinet—access plate removed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Maintenance Bypass Cabinet wiring access panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Maintenance bypass control wire location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Load Bus Synchronization cable connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
1+N system block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Connecting '1+N' system parallel control cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Auxiliary dry contact cables for output breaker in multi-module system . . . . . . . . . . . . . . . . . . . 34
Dry contacts, multiple UPS modules with distribution panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Connecting EPO push button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Battery circuit breaker box connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Dimensional view- front and left side views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Dimensions continued—top and bottom views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Main components—typical unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Cable connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Location of internal batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Battery connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Battery cabinet interconnection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Maintenance Bypass interconnection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
NX 1+1 parallel cabinet interconnections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Lineup detail—SlimLine distribution cabinet to NX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Lineup detail—1+N Type A connection to NX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Lineup detail—1+N Type A1 connection to NX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Lineup detail—1+N Type B connection to NX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Lineup detail—1+N Type B1 connection to NX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Lineup detail—1+N Type C connection to NX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Lineup detail—1+N Type C1 connection to NX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Lineup detail—1+N Type D connection to NX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
SlimLine locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
iii
TABLES
Table 1
Table 2
Table 3
Table 4
Table 5
Table 6
Table 7
Table 8
Table 9
Table 10
Table 11
Table 12
Table 13
Table 14
Table 15
Table 16
Table 17
Table 18
Table 19
Table 20
Table 21
Table 22
Table 23
Table 24
Table 25
Table 26
Table 27
Table 28
Table 29
Table 30
Table 31
Table 32
Table 33
Table 34
Table 35
Table 36
Table 37
Input dry contacts at X3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance bypass cabinet interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BCB box interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output dry contact relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EPO input contact relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EPO input contact relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Available battery circuit breaker boxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Environmental characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mechanical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPS terminal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Approved batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rectifier input power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC intermediate circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inverter output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bypass input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Liebert -supplied interconnect wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Liebert-supplied interconnect wiring for Maintenance Bypass Cabinet . . . . . . . . . . . . . . . . . . . .
Liebert-supplied interconnect wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Liebert-supplied interconnect wiring—SlimLine distribution cabinet to NX . . . . . . . . . . . . . . . .
Interconnect wiring—1+N Type A connection to NX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interconnect wiring—1+N Type A1 connection to NX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interconnect wiring—1+N Type B connection to NX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interconnect wiring—1+N Type B1 connection to NX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interconnect wiring—1+N Type C connection to NX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interconnect wiring—1+N Type C1 connection to NX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interconnect wiring—1+N Type D connection to NX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Torque specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery torque rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance bypass cabinet electrical data (single input). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance bypass cabinet electrical data (dual input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Multi-module bypass cabinet electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance bypass cabinet lug sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance Bypass Cabinet weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery cabinet physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance bypass cabinet dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Multi-module paralleling cabinet dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Distance to connection points on the NX UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
iv
15
16
16
17
17
18
36
38
38
39
40
40
40
41
41
47
48
49
50
51
52
53
54
55
56
57
59
59
60
61
62
68
69
69
70
70
70
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important instructions that should be followed during installation of your
Liebert NX™ UPS and batteries.
Read this manual thoroughly, paying special attention to the sections that apply to your installation,
before working with the UPS. Retain this manual for use by installing personnel.
!
WARNING
Exercise extreme care when handling UPS cabinets to avoid equipment damage or injury to
personnel. The UPS module weight ranges from 850 to 1400 lb. (386 to 635kg).
Determine unit weight and locate center of gravity symbols
before handling the UPS. Test lift and balance the cabinet
before transporting. Never tilt equipment more than 15 degrees from vertical.
Battery manufacturers supply details of the necessary precautions to be observed when
working on, or in the vicinity of, a large bank of battery cells. These precautions should be
followed implicitly at all times.
Follow all battery safety precautions when installing, charging or servicing batteries. In
addition to the hazard of electric shock, gas produced by batteries can be explosive and
sulfuric acid can cause severe burns. When connected, the nominal battery voltage is 288VDC
and is potentially lethal.
In case of fire involving electrical equipment, use only carbon dioxide fire extinguishers or
those approved for use in fighting electrical fires.
Extreme caution is required when performing maintenance.
Be constantly aware that the UPS system contains high DC as well as AC voltages.
Check for voltage with both AC and DC voltmeters prior to making contact.
!
WARNING
As with other types of high power equipment, dangerous voltages are present within the UPS
and battery enclosure. The risk of contact with these voltages is minimized as the live
component parts are housed behind a hinged, lockable door. Further internal safety screens
make the equipment protected to IP20 standards.
No risk exists to any personnel when operating the equipment in the normal manner,
following the recommended operating procedures.
All equipment maintenance and servicing procedures involve internal access and should be
carried out only by trained personnel.
!
WARNING
High ground leakage current: Ground connection is essential before connecting the input
supply.
This equipment must be grounded in accordance with local electrical codes.
Maximum load must not exceed that shown on the UPS rating label.
1
!
CAUTION
!
WARNING
!
CAUTION
This equipment is fitted with RFI suppression filters.
Ground leakage current exceeds 3.5 mA and is less than 1000 mA.
Transient and steady-state ground leakage currents, which may occur when starting the
equipment, should be taken into account when selecting instantaneous residual current
circuit breakers (RCCBs) or residual current devices (RCDs).
RCCBs must be selected sensitive to DC unidirectional pulses (Class A) and insensitive to
transient current pulses.
Note also that the ground leakage currents of the load will be carried by this RCCB or RCD.
Under typical operation and with all UPS doors closed, only normal safety precautions are
necessary. The area around the UPS system should be kept free of puddles of water, excess
moisture and debris.
Special safety precautions are required for procedures involving handling, installation and
maintenance of the UPS system and the battery. Observe all safety precautions in this
manual before handling or installing the UPS system. Observe all precautions in the
Operation and Maintenance Manual, before as well as during performance of all maintenance
procedures. Observe all battery safety precautions before working on or near the battery.
This equipment contains several circuits that are energized with high voltage. Only
test equipment designed for troubleshooting should be used. This is particularly true for
oscilloscopes. Always check with an AC and DC voltmeter to ensure safety before making
contact or using tools. Even when the power is turned Off, dangerously high electric charges
may exist within the UPS.
All power and control wiring should be installed by a qualified electrician. All power
and control wiring must comply with the NEC and applicable local codes.
ONLY qualified service personnel should perform maintenance on the UPS system.
When performing maintenance with any part of the equipment under power, service
personnel and test equipment should be standing on rubber mats. The service personnel
should wear insulating shoes for isolation from direct contact with the floor (earth ground).
Never work alone, even if all power is removed from the equipment. A second person should
be standing by to assist and summon help in case an accident should occur.
This unit complies with the limits for a Class A digital device, pursuant to Part 15 Subpart J
of the FCC rules. These limits provide reasonable protection against harmful interference in a
commercial environment. This unit generates, uses and radiates radio frequency energy and,
if not installed and used in accordance with this instruction manual, may cause harmful
interference to radio communications. This unit is not designed for use in a residential area.
Operation of this unit in a residential area may cause harmful interference that the user must
correct at his own expense.
Battery Cabinet Precautions
The following warning applies to all battery cabinets supplied with UPS systems. Additional warnings and cautions applicable to battery cabinets may be found in 3.0 - Battery Installation.
!
WARNING
Internal battery strapping must be verified by manufacturer prior to moving a battery cabinet
(after initial installation).
• Battery cabinets contain non-spillable batteries.
• Keep units upright.
• Do not stack.
• Do not tilt.
Failure to heed this warning could result in smoke, fire or electric hazard.
Call 1-800-LIEBERT before moving battery cabinets (after initial installation).
2
GLOSSARY OF SYMBOLS
Risk of electrical shock
!
Indicates caution followed by important instructions
AC input
AC output
i
-
Requests the user to consult the manual
+
Indicates the unit contains a valve-regulated lead acid battery
PbH2SO4
R
Recycle
DC voltage
Equipment grounding conductor
Bonded to ground
AC voltage
3
Installation
1.0
INSTALLATION
The Liebert NX™ UPS is designed primarily for telecommunications and data processing applications. Liebert Corporation neither recommends nor knowingly sells this product for use with life support and other designated “critical” devices.
This section describes the NX’s environmental requirements and mechanical considerations that
must be taken into account when planning the positioning and cabling of the UPS equipment.
Because every site is unique, this section presents a guide to general procedures and practices that
should be observed by the installing engineer, rather than step-by-step installation instructions.
!
WARNING
!
WARNING
!
WARNING
Do not apply electrical power to the UPS equipment before the arrival of the commissioning
engineer.
The UPS equipment should be installed by a qualified engineer in accordance with the
information contained in this section.
Special care should be taken when working with the batteries associated with this equipment.
When connected together, the nominal battery voltage is 288VDC and is potentially lethal.
• Eye protection should be worn to prevent injury from accidental electrical arcs.
• Remove rings, watches and all metal objects.
• Only use tools with insulated handles.
• Wear rubber gloves.
If a battery leaks electrolyte or is otherwise physically damaged, it must be replaced, stored in
a container resistant to sulfuric acid and disposed of in accordance with local regulations.
If electrolyte comes into contact with skin, the affected area should be washed immediately
with large amounts of water.
NOTE
The NX UPS can be used in TN utility system.
1.1
External Inspections
1. While the UPS system is still on the truck, inspect the equipment and shipping container(s) for
any signs of damage or mishandling. Do not attempt to install the system if damage is apparent.
If any damage is noted, file a damage claim with the shipping agency within 24 hours and contact
Liebert Global Services at 1-800-LIEBERT to inform them of the damage claim and the condition
of the equipment.
2. Compare the contents of the shipment with the bill of lading. Report any missing items to the
carrier and your local Liebert representative immediately.
1.2
Internal Inspections
1. Remove any packaging material, then visually examine the UPS and battery equipment for
transit damage, both internally and externally. Report any such damage to the shipper and to
Liebert immediately.
2. Check the nameplate inside the cabinet door to verify that the model number and rating
correspond to the ones specified. Record the model number and serial number in the front of this
installation manual. This information is necessary should service be required.
3. Check for loose connections or unsecured components in the cabinet.
4. Check for shipping damage to internal components.
4
Installation
1.2.1
Storing for Delayed Installation
If the equipment will not be installed immediately, it must be stored indoors where the humidity is no
higher than 90% and the temperature is no higher than 104°F (40°C). The storage area must protect
the NX from excessive moisture (see 6.2 - UPS Environmental).
!
CAUTION
!
CAUTION
If the UPS must remain disconnected from power for more than six (6) months, the battery
must be recharged before use. To charge the batteries, the unit must be connected to utility
power and started up—the charger operates only while the NX is operating.
When batteries are installed in the UPS or are cabinet-mounted adjacent to the UPS unit, the
battery—not the UPS—dictates the designed maximum ambient temperature.
1.3
Preliminary Checks
1.3.1
Identification
The equipment supplied has an identification tag on the back of the main door listing the type and
size of the UPS.
1.4
UPS Location
1.4.1
Positioning the UPS
Choose a location for the UPS that offers:
•
•
•
•
•
•
•
1.4.2
Easy connection to inputs, outputs and auxiliary equipment
Enough space to service the UPS
Air circulation sufficient to expel heat produced by UPS
Protection against moisture and excessive humidity
Protection against dust and other particulate matter
Compliance with fire prevention regulations and practices
Operating environment temperature of 74-80°F (23-27°C) for maximum battery efficiency
Environmental Considerations
Before installing the NX, verify that the UPS room satisfies the environmental conditions stipulated
in 6.2 - UPS Environmental, paying particular attention to the ambient temperature and air
exchange system.
The UPS unit should be installed in a cool, dry, clean-air environment with adequate ventilation to
keep the ambient temperature within the specified operating range 32°F to 104°F (0°C to 40°C).
For optimal UPS and battery system performance and service life, maintain the operating temperature within the range of 74-80°F, (23-27°C).
The NX UPS cooled by internal fans. Cooling air enters the unit through the front of the unit and is
exhausted out the top. To permit proper air flow and prevent overheating, do NOT block or cover the
ventilation openings or blow air down onto the unit. Ventilation clearance above the unit must be a
minimum of 24 in. (610mm).
See Table 9 for details on heat dissipation.
Battery Location
Temperature is a major factor in determining battery life and capacity. Battery manufacturers recommend an operating temperature of 77°F (25°C). Ambient temperatures warmer than this reduce battery life; temperatures below this reduces battery capacity. In a typical installation, battery
temperature should be maintained between 74°F and 80°F (23-27°C). Batteries should be placed
where there are no main heat sources or air inlets to prevent portions of batteries from being either
much warmer or much cooler than other parts of the batteries.
5
Installation
1.4.3
Special Considerations for 1+N Systems
1. Consider the grounding configuration of your system before finalizing module placement. For
optimal ground performance, the NX modules should be close together.
2. For optimal load-sharing performance, the UPS output cables should be approximately the same
length, plus or minus 20 percent.
3. Position modules in such a way as to minimize the length of power cables and control wiring
between UPS modules and the paralleling cabinet.
1.5
Considerations in Moving the NX
Ensure that the UPS weight is within the designated surface weight loading (lb./ft2 or kg/cm2) of any
handling equipment. See Table 9 for weights of various units.
To move the UPS and optional battery cabinets:
• The NX may be rolled on its casters when moving the unit a short distance. For longer distances,
move the UPS with a forklift or similar equipment to ease the relocation and to reduce vibration.
The optional battery cabinets should be moved with a forklift or similar equipment.
!
WARNING
Ensure that any equipment that will be used to move the NX has sufficient lifting capacity.
The NX weight ranges from 850 to 1400 lb. (386 to 635kg). See Table 9 for details. The UPS
presents a tipping hazard. Do not tilt the NX further than 15 degrees from vertical.
The UPS is fitted with casters—take care to prevent movement when unbolting the
equipment from its shipping pallet. Ensure adequate personnel and lifting equipment are
available when taking the NX off its shipping pallet. Do not tilt the unit more than 15 degrees
from center.
!
WARNING
The casters are strong enough for movement across even surfaces only. Casters may fail if
they are subjected to shock loading, such as being dropped or rolled over holes in the floor or
obstructions. Such failure may cause the unit to tip over, injuring personnel and damaging
the equipment.
Care must be taken when maneuvering units fitted with batteries. Keep such moves to a
minimum. For further information, see Battery Cabinet Precautions on page 2.
Final Position
When the equipment has been finally positioned, ensure that the adjustable stops are set so that the
UPS will remain stationary and stable (see 7.0 - Installation Drawings).
1.6
Mechanical Considerations
The NX is constructed with a steel frame and removable panels. Top and side panels are secured to
the chassis by screws. The doors may be opened for access to power connections bars, auxiliary terminals blocks and power switches.
The UPS comes with an operator control panel, which provides basic operational status and alarm
information. The cabinet houses both the power components and the internal batteries. Cooling is
provided by internal fans. The unit sits on four casters. Adjustable stops are provided to prevent the
UPS from moving once it has been moved to its final position.
6
Installation
1.6.1
Clearances
There are no ventilation grilles on the sides or rear of the UPS. The sides must be accessible during
installation. After installation, the unit may be placed with the rear against a wall and optional cabinets on either side.
To enable routine tightening of power terminations within the UPS, make sure there is sufficient
clearance in front of the NX to permit free passage of personnel with the door fully opened.
Leave a minimum of 2 ft. (610mm) between the top of the UPS and the ceiling to permit adequate air
circulation above the unit. Liebert recommends against using air conditioning or other systems that
blow air onto the top of the unit.
1.6.2
Floor Installation
The diagrams in 7.0 - Installation Drawings show the location of holes in the base plate for bolting
the equipment to the floor. An optional anchoring kit is available. For information, see your local Liebert representative.
If the equipment is to be placed on a raised floor, it should be mounted on a pedestal that will support
the equipment point loading. Refer to the bottom view in Figure 28 to design this pedestal.
1.6.3
Cable Entry
Cables can enter the NX from the top or bottom. Cable entry is made possible by removing a metal
plate attached to the UPS.
These plates are designed to allow the personnel to punch holes for fitting and securing the conduit.
Once the conduit holes are punched, these plates should be reattached to the UPS.
Connecting cables to the NX may require that the UPS be accessible from the left side to allow personnel to complete the connections and make necessary adjustments. After installation is complete,
the NX may be serviced from the front.
NOTE
When installing the UPS, the customer must provide a disconnect with overcurrent protection
at the output of the UPS.
10-30kVA UPS
The 10-30kVA NX consists of a single cabinet housing the UPS components and the internal battery
string.
Optional battery cabinets are available to provide extended run time. Each cabinet houses additional
strings of batteries that operate in parallel with the NX’s internal batteries. The cabinets are
designed to be bolted to the right side of the UPS (see Figure 1). Refer to 3.4 - External Battery
Cabinet Installation for details.
Optional maintenance bypass/transformer cabinets (MBC-T) are available. These cabinets house the
components necessary to:
• Provide an external wrap-around maintenance bypass switch for servicing the UPS
• Provide voltage transformation for site or application requirements
• Provide a means for neutral isolation and allow installations for site without a neutral conductor
MBC-T cabinets are designed to be bolted to the left side of the UPS (see Figure 1). Refer to 4.5 Locating the Cabinet, for further details.
System Composition
A UPS system can comprise a number of equipment cabinets, depending on the individual system
design requirements—e.g., UPS cabinet and External Bypass cabinet. In general, all cabinets used
will be the same height and are designed to be positioned side-by-side to form an aesthetically appealing equipment suite.
7
Installation
1.6.4
Optional Cabinets
If your NX installation includes a Maintenance Bypass Cabinet, the NX must be positioned to allow
the Maintenance Bypass Cabinet to be bolted to left side of the NX (see Figure 1). Cables from the
Maintenance Bypass Cabinet must be brought through the bottom side of the NX for connection.
The Maintenance Bypass Cabinet must be cabled and bolted to the NX before the UPS and bypass
cabinet are moved into their final position. Connect the input wiring to the Maintenance Bypass Cabinet ONLY after the units are connected and positioned.
Battery cabinets may be bolted to either side of the NX, unless used in configurations that include a
Maintenance Bypass Cabinet. If used with a Maintenance Bypass Cabinet, battery cabinets must be
installed on the right side of the UPS; see Figure 1 below.
Figure 1
Cabinet arrangement
ALL UNITS VIEWED FROM ABOVE
Maintenance
Bypass
Cabinet
Liebert
NX
Maintenance
Bypass
Cabinet
NX connected only to MBC
(MBC must be on left side of the NX)
Liebert
NX
Battery
Cabinet
Battery
Cabinet
NX connected to Maintenance Bypass Cabinet and Battery Cabinets
(MBC must be on left side of the NX)
(Battery Cabinets must be on the right side of the NX in this
configuration)
Liebert
NX
Battery
Cabinet
Battery
Cabinet
NX connected to Battery Cabinets
(Battery Cabinets may be on either side of the NX)
8
Electrical Connections
2.0
ELECTRICAL CONNECTIONS
The UPS requires both power and control cabling once it has been mechanically installed. All control
cables must run separate from power cables in metal conduits or metal ducts that are electrically
bonded to the metalwork of the cabinets to which they are connected.
!
WARNING
Before connecting input power to the NX, ensure that you are aware of the location and
operation of the overcurrent protection devices that connect the UPS input/bypass supply to
the power distribution panel.
De-energize and lockout or tagout all incoming high- and low-voltage power circuits before
installing cables or making any electrical connections.
2.1
Power Cabling
2.1.1
Cable Rating
The main factors affecting the choice and size of cable are voltage, current (also taking into account
overcurrent), room temperature and conditions of installation of the cable.
The power cables of the system must be sized with respect to the following description:
• UPS input cables - The UPS input cables must be sized for the maximum input current, including the maximum battery recharge current, given in Table 10, with respect to the unit rating and
the input AC voltage.
• UPS bypass and output cables - The bypass and output cables must be sized for the nominal
output current, given in Table 10, with respect to the unit rating and the output AC voltage.
• Battery cables - Each UPS unit has its own internal batteries factory-wired. If connecting an
external battery cabinet, the battery cables must be sized for the battery discharge current at the
end-of-discharge voltage, as given in Table 10, with respect to the unit rating.
NOTE
Table 10 gives nominal currents for determining the size of UPS power cables. Other
important factors to consider include cable route length and coordination with protective
devices.
The power cables can be sized to suit the UPS unit rating according to Table 10.
Lug Size and Torque Requirements
Refer to Table 27 for lug size and torque requirements.
9
Electrical Connections
2.1.2
UPS Input Configuration
Figure 2 illustrates the NX in a split bypass (dual-input) configuration. In this configuration the
Static Bypass and the Maintenance Bypass lines are supplied from a separate feed from the Main
input. Both sources must be protected externally with properly sized protective devices. By default,
the unit ships with internal links installed between the Bypass input and Main input (Single Input
configuration). To wire the unit as a dual input UPS, remove the links and wire the bypass to the
input bus bars, then wire the Main input directly to CB1 (see Figure 3).
Figure 2
Single module block diagram—dual input configuration
SW1/D
Maintenance Bypass
Static Switch
SW1/C
Bypass Input
Rectifier
Contactor
Inverter
AC Utility Input
Contactor
SW1/A
UPS
Output
CB1
Neutral Wire
Discharge
SW1/B
Battery
Charger
Battery
2.1.3
Cabling Guidelines
The following are guidelines only and are superseded by local regulations and codes of practice where
applicable.
1. Take special care when determining the size of the neutral cable, as current circulating on the
neutral cable may be greater than nominal current in the case of non-linear loads. Refer to the
values in 6.4 - UPS Electrical Characteristics.
2. The ground conductor should be sized according to such factors as the fault rating, cable lengths
and type of protection. The ground cable connecting the UPS to the main ground system must
follow the most direct route possible. Control wiring and power wiring must be run in separate
conduit. Output and input cables must be run in separate conduit.
3. Consider using paralleled smaller cables for heavy currents—this can ease installation.
4. When sizing battery cables, a maximum voltage drop of 4VDC is permissible at the current
ratings in Table 10. For terminal connection sizing, see Table 10.
5. In most installations, especially parallel multi-module systems, the load equipment is connected
to a distribution network of individually protected busbars fed by the UPS output, rather than
connected directly to the UPS itself. When this is the case, the UPS output cables can be rated to
suit the individual distribution network demands rather than being fully load-rated.
NOTE
If more load is added to the distribution panel, the unit’s cabling must be resized.
6. When laying power cables, do not form coils; this will help avoid increasing formation of
electromagnetic interference.
NOTE
Left-side access may be required when making power connections. Cable connections should be
made before a cabinet is attached to the left side of the NX or before the UPS is placed where
another obstruction, such as a wall, is against the NX’s the left side.
10
Electrical Connections
2.1.4
Cable Connections
The rectifier input, bypass and output are easily accessible from the left side of the unit for installation. All require lug type terminations. They are connected to busbars on the left side of the NX and
below the switch, as shown in Figure 3. These busbars are accessible when the left side panel is
removed. Busbars to connect external batteries are accessible from the front of the UPS.
NOTE
External battery connection access requires removal of a protective panel on the lower front of
the UPS to the left of the bottom two battery shelves.
Figure 3
Input busbars
Remove these links
for dual input
configuration and
wire UPS Main input
directly to CB1
Rectifier Input
Busbars
(Phases are
indicated by
letters below the
bars)
Output Busbars
(Phases are
indicated by
letters below the
bars)
C
B
A
C
B
OUTPUT
A
BYPASS
The internal batteries are connected with Anderson connectors inside the battery compartment. The
batteries are connected to fuses to protect the NX and connected equipment (see Figure 4).
Figure 4
Battery fuses and connections
Internal battery input
connections
150A 500V AC/DC
150A 500V AC/DC
B
B
Bussmann
Bussmann
MADE IN USA
MADE IN USA
11
Battery fuses
(fuses are behind
access plate on
front of UPS; see
Note on page 11)
Electrical Connections
2.1.5
Safety Ground
The safety ground busbar is located below the neutral input and output busbars as shown in
Figure 5 below. The safety ground cable must be connected to the ground busbar and bonded to each
cabinet in the system.
All cabinets and cable conduit should be grounded in accordance with local regulations.
!
WARNING
Failure to follow proper grounding procedures can result in electric shock hazard to personnel
or the risk of fire, should a ground fault occur.
NOTE
Proper grounding significantly reduces problems in systems caused by electromagnetic
interference.
NOTE
The ground and neutral busbars are easily accessible when the left protective cover plate is
removed. Cable connections should be made before a cabinet is attached to the left side of the
NX or before the UPS is placed where another obstruction, such as a wall, is against the NX’s
the left side.
Figure 5
Ground and neutral busbar connections
Output neutral
busbar
OUTPUT
NEUTRAL
INPUT
NEUTRAL
Input neutral
busbar
Ground
busbar
2.1.6
Protective Devices
For safety, it is necessary to install circuit breakers in the input AC supply and external battery battery cabinets, external to the UPS system. Given that every installation has its own characteristics,
this section provides guidelines for qualified installation engineers with knowledge of operating practices, regulatory standards and the equipment to be installed.
UPS Rectifier and Bypass Input Supply
• Protection from excessive overcurrents and short circuits in power supply input
External overcurrent protection for the AC output circuit is to be provided. See 6.4 - UPS Electrical Characteristics and Table 12 for overload capacity.
High-speed fuses and SCRs are used for internal battery circuit overcurrent protection. When an
external battery supply is used, overcurrent protection for the battery circuit is to be provided by
the customer.
• Dual Input
When wiring the UPS with dual inputs, the Rectifier input and the Bypass input must be protected separately. Size the breakers according to the input currents shown in Table 10.
System Output
When using an external distribution panel for load distribution, the output neutral and input neutral
must be separated at the input to the UPS.
12
Electrical Connections
2.1.7
Cabling Procedure
!
CAUTION
The operations described in this section must be performed by authorized electricians or
qualified technical personnel. If you have any difficulties, contact your local Liebert
representative or Liebert Global Services.
NOTE
Hydraulic pressure pliers, combinative tools and piston ring pliers should be used to connect
AC wiring.
Once the equipment has been positioned and secured for operation, and the battery and ground collars have been connected (see 2.1.4 - Cable Connections), connect the power cables as described
below. (Study the reference drawing in 7.0 - Installation Drawings.)
1. Verify that all incoming high and low voltage power circuits are de-energized and locked out or
tagged out before installing cables or making any electrical connections.
2. Remove the left side panel to gain easier access to the connections busbars.
3. Connect the safety ground and any easier bonding ground bus cables to the copper ground busbar
located on the bottom of the equipment below the power connections. All cabinets in the UPS
system must be connected to the user’s ground connection.
NOTE
The grounding and neutral bonding arrangement must comply with the National Electrical
Code and all applicable local codes.
4. Identify and make power connections with incoming cables according to Steps 5 through 11.
Common Input Connections
5. For common bypass and rectifier inputs, connect the AC input supply cables between the power
distribution panel and the UPS input busbars (A-B-C terminals) and tighten the connections to
44 lb-in. (5 N-m) using the M6 bolt provided.
6. The input neutral cable must be connected to the input neutral busbar (N). See Figure 5.
Dual Input Connections
7. For bypass connect the AC input supply cables between the power distribution panel and the UPS
input busbars (A-B-C terminals) and tighten the connections to 44 lb-in. (5 N-m) using the M6
bolt provided.
8. For Rectifier Input connect AC input supply cables between the power distribution panel and the
UPS input circuit breaker (A-B-C terminals)
9. The bypass and rectifier input neutral cables must be connected to the input neutral busbar (N).
See Figure 5.
NOTE
Both the rectifier and bypass feeds MUST come from the same utility source, except if the UPS
system includes either a configuration F or P external maintenance bypass cabinet.
Output System Connections—Ensure Correct Phase Rotation
10. Connect the system output cables between the UPS output busbars (A-B-C N terminals) and the
critical load and tighten the connections to 44 lb-in. (5 N-m) (M6 bolt).
!
WARNING
If the load equipment will not be ready to accept power on the arrival of the commissioning
engineer, then ensure that the system output cables are safely isolated.
13
Electrical Connections
Internal UPS Battery Connections
The UPS internal batteries will be connected at the factory, EXCEPT the Anderson connections
between the shelves and to the fuses.
!
WARNING
The DC bus is live when this internal battery connection is made. This connection is to be
performed ONLY by Liebert Global Services at startup.
Observe the battery cable polarity. Be sure that the battery connector is made with the correct polarity.
11. Refit all protective covers removed for cable installation
2.2
Control Cables
2.2.1
Monitor Board Features
Based on your site’s specific needs, the UPS may require auxiliary connections to manage the battery
system (external battery circuit breaker, battery temperature sensor), communicate with a personal
computer or provide alarm signaling to external devices or for Remote Emergency Power Off (REPO).
The monitor board, arranged for this purpose, is located on the rear of the operator access door. The
main features are:
• Input and Output dry contacts signal (one pair of contacts of relay)
• Emergency Power Off control (EPO)
• Environmental parameter input interface
• User communication (for data setting and user background monitor)
• Intellislot™ interface
• Modem interface
• Temperature detect interface
Figure 6 shows the relationship and connection between the monitoring (U2) board and other boards
in the UPS.
Figure 6
Monitor board U2
U1
DSP Control
M5
Auxiliary Power
K1
Key & LED Board
U2
Monitor Board
X1
User Interface
Board
14
M3
Parallel Logic
Board
Electrical Connections
Figure 7
Auxiliary terminal block detail (Monitoring Board)
J8
J3
J1
LCD
J22
X7
J23
X6
J12
J9
J2
J15
PWR
MODEM
SNMP CARD
X5
J16
J17
Intellislot 2
J13 J21 J25
J28
J4
Intellislot 1
J26 J30 J10
X4
X4
J24
Intellislot 3
BFP INV ACF
EPO
MBC
X2
X1
2.3
Dry in
BCB
NOTE: The black square ()
on each slot indicates Pin 1.
X3
Dry Contacts
The UPS provides input dry contacts and output dry contacts.
2.3.1
Input Dry Contacts
There are several input dry contacts at the X3 slot.
Figure 8
Input dry contacts
NOTE: The black square () on each slot indicates Pin 1.
Table 1
Position
Input dry contacts at X3
Name
3
J4.1
ENV
J4.2
BtG
J4.3
GEN1,2
J4.4
+12V
Description
Battery Room Alarm (N.C.)
Battery Ground Fault Detection (N.C.)
Generator Join Detection (N.O.)
+12V Power
1 - Must be configured by configuration software before becoming active.
2 - When activated, the charger current can be limited, via software, to a percentage of the full charger current (0-100%).
3 - Activating this feature turns the battery charger off.
15
Electrical Connections
2.3.2
Maintenance Bypass Cabinet Interface
J26 and J30 are the MBC interface.
Table 2
Maintenance bypass cabinet interface
Position
Name
Description
J26.1
T_IT1
Input transformer over temperature (N.C.)
J26.2
AUX_I
Reserved
J26.3
+12V
+12V Power
J26.4
GND
Power Ground
J30.1
FUSE
Reserved
J30.2
F_FAN
Fan Fail Alarm (N.C.)
J30.3
T_OT
1
J30.4
AUX_O
Output Transformer Overtemperature (N.C.)
Reserved
1 - Must be configured by software before becoming active
NOTE
All auxiliary cables of terminal must be double-insulated. Wire should be 20-16AWG stranded
for maximum runs between 82 and 164 feet (25-50m), respectively.
2.3.3
BCB Box Interface
J10 is the BCB box interface.
Table 3
BCB box interface
Position
Name
J10.1
DRV
J10.2
FB
J10.3
GND
J10.4
OL
Description
BCB Driver Signal - Reserved
BCB Contact State
Power Ground
BCB On-Line - Input - This pin will become active when
BCB interface is connected. (N.O.)
NOTE
All auxiliary cables of terminal must be double-insulated. Wire should be 20-16AWG stranded
for maximum runs between 82 and 164 feet (25-50m), respectively.
NOTE
If BCB interface is connected, a jumper needs to added between Pin 3 and Pin 4.
Jumper connection for BCB interface
UPS Monitoring Board
OL
J10
GND
FB
DRV
Figure 9
Aux – N.O.
Aux – N.O.
Battery Circuit Breaker
16
Electrical Connections
2.3.4
Output Dry Contacts
There are three output dry contact relays at the X1 slot (see Figure 10 and Table 4).
Figure 10 Output dry contacts and EPO wiring for firmware before M170
+12V
X2
ACF_O
J28
ACF_S
ACF_C
INV_C
BFP_O
BFP_S
BFP_C
Table 4
J25
INV_O
J21
J13
INV_S
X1
EPO-H
EPO-L
Output dry contact relays
Position
Name
Description
J13.2
BFP_O
Bypass feedback protection relay. Normally open. Closed when bypass SCR is shorted.
J13.3
BFP_S
Bypass feedback protection relay center
J13.4
BFP_C
Bypass feedback protection relay. Normally closed. Open when bypass SCR is shorted.
J21.2
INV_O
Inverter mode relay. Normally open. Closed when UPS is in inverter mode.
J21.3
INV_S
Inverter mode relay center
J21.4
INV_C
Inverter mode relay. Normally closed. Open when UPS is in inverter mode.
J25.2
ACF_O
Main input fault relay. Normally open. Closed when main input is in fault.
J25.3
ACF_S
Main input fault relay center
J25.4
ACF_C
Main input fault relay. Normally closed. Open when main input is in fault.
NOTE
All auxiliary cables of terminal must be double-insulated. Wire should be 20-16AWG stranded
for maximum runs between 82 and 164 feet (25-50m), respectively.
2.3.5
EPO Input—Optional
Firmware Before M200
The UPS has an Emergency Power Off (EPO) function that operates by a button on the control panel
or by a remote contact provided by the user. The EPO button is under a hinged, clear plastic shield.
The X2 slot, shown in Figure 10, is the remote EPO input interface. It is active when shorted from
EPO-L to EPO-H.
If an external Emergency Stop facility is required, it is connected terminals EPO-L to EPO-H of the
auxiliary terminal block (X2). It also is connected to the Normally Open remote stop switch between
these two terminals using shielded cable (see Figure 10 and Table 5). If this function is not used,
terminals EPO-L to EPO-H must be opened.
Table 5
EPO input contact relays
Position
Name
Description
J28.2
EPO_L
Emergency Power Off Low
J28.4
EPO_H
Emergency Power Off High
NOTE
The Emergency Stop action within the UPS shuts down the rectifier, inverter and static
bypass. It does not internally disconnect the input power supply.
To disconnect ALL power to the UPS, open the upstream feeder breaker(s) when the remote
EPO is activated.
17
Electrical Connections
Firmware M200 or Later
The UPS has an Emergency Power Off (EPO) function operated by a button on the control panel or by
a remote contact provided by the user. The EPO button is under a hinged, clear plastic shield.
The X2 slot, shown in Figure 11, is the remote EPO input interface. The EPO has a NO/NC contact
point becomes active when shorting terminals X2: 3 and 4 or open terminal connection X2: 2 and 1.
If an external Emergency Stop facility is required, it is connected terminals X2: 1&2 or X2: 3 and 4 of
the auxiliary terminal block (X2). It also is connected to the Normally Open or Normally Closed
remote stop switch between these two terminals using shielded cable (see Figure 11 and Table 6). If
this function is not used, terminals X2: 3 and 4 must be opened and X2: 1 and 2 must be closed.
Figure 11 EPO wiring for firmware M200 or later
X2
J28
EPO - NO
Table 6
EPO - NC
EPO input contact relays
Position
Name
Description
J28.1
EPO_NC
EPO Activated when opened to J28.2
J28.2
EPO_NC
EPO Activated when opened to J28.1
J28.3
EPO_NO
EPO Activated when shorted to J28.4
J28.4
EPO_NO
EPO Activated when shorted to J28.3
NOTE
The Emergency Stop action within the UPS shuts down the rectifier, inverter and static
bypass. It does not internally disconnect the input power supply. To disconnect ALL power to
the UPS, open the upstream feeder breaker(s) when the remote EPO is activated.
NOTE
Normally Closed EPO – X2: 1,2, these terminals are supplied factory-linked on the monitor
board and must remain installed if using NC contacts.
NOTE
All auxiliary cables of terminal must be double-insulated. Wire should be 20-16AWG stranded
for maximum runs between 82 and 164 feet (25-50m), respectively.
18
Battery Installation
3.0
BATTERY INSTALLATION
3.1
Introduction
Liebert recommends that the batteries in external cabinets match the internal batteries in the NX in
manufacturer and type.
If using multiple sets of batteries connected in parallel to provide the required battery backup run
times, fit each set with an isolating device to permit working on one of the battery sets while leaving
the others in service and providing backup protection.
When replacing batteries, replace with the same manufacturer and type, or equivalent. See your Liebert representative for a list approve batteries.
NOTE
The NX, as shipped, has 24 12-volt batteries installed internally in each unit.
3.2
Safety
Special care should be taken when working with the batteries associated with the NX system equipment. When all batteries are connected together, the battery terminal voltage may exceed 324V and is
POTENTIALLY LETHAL.
!
3.3
WARNING
The NX's internal batteries are connected and energized even if the UPS is turned Off. To
minimize the risk of injury, a qualified service person should disconnect internal batteries
before any maintenance is performed on the unit.
The center of the battery is connected to the neutral of the UPS and is grounded.
A battery can present a risk of electrical shock and high short circuit current. The following
precautions should be observed when working on batteries:
• Remove watches, rings and other metal objects.
• Use tools with insulated handles.
• Wear rubber gloves and boots.
• Do not lay tools or metal parts on top of batteries.
• Disconnect charging source prior to connecting or disconnecting battery terminals.
UPS Batteries
The NX's internal batteries are fully charged before the unit is shipped. During storage and transportation, some charge is lost. All batteries should be recharged before use. The battery charger works
only when the NX is connected to input power and turned On.
NOTE
Full safety instructions concerning the use and maintenance of UPS batteries are provided in
the appropriate battery manufacturer's manuals, available on the manufacturer's Web site.
The battery safety information contained in this section relates to key considerations that must
be taken into account during the installation design process and might affect the design
outcome, depending on your installation.
19
Battery Installation
3.4
External Battery Cabinet Installation
3.4.1
Matching Battery Cabinets
Two sizes of optional battery cabinets are available. Refer to Figures 13 and 14. The same model battery cabinet may be installed in parallel in multiple cabinet strings for additional capacity. Battery
run time depends on the cabinet model, the number of cabinets and the load on the UPS.
Handling—The battery cabinet has casters to facilitate movement over short distances. The bottoms
of the battery cabinets are reinforced to permit movement by forklift over longer distances.
Inspection—Remove all panels and visually inspect the batteries, bus connections, and cabinet for
any damage. Exercise caution; voltage is present within the battery cabinet even before installation.
If there are signs of damage, do not proceed. Call Liebert Global Services at 1-800-542-2378.
Storage—The batteries can be stored for up to six months without appreciable deterioration. If planning to store a battery cabinet for longer than six months or at temperatures higher than 77°F (25°C),
contact Liebert Global Services for recommended precautions.
The following notes, in conjunction with the diagrams (Figure 13 through 12), illustrate the broad
principles to be followed when fitting and connecting the majority of battery cabinet installations.
!
CAUTION
Any battery system should be installed by qualified personnel.
When installing an external battery cabinet that is NOT a Liebert NX battery cabinet, the customer
must provide overcurrent protection. See Table 10 for sizing of protection devices.
NOTE
When using an external battery supply that is not provided with the UPS, please make
reference to the battery manufacturer’s installation manual for battery installation and
maintenance instructions, available on the manufacturer’s Web site. When replacing batteries,
Liebert recommends that the batteries in external cabinets be the same type used internally in
the NX. See Table 11 for a list of batteries that are approved for use with this product.
3.4.2
Connecting the Batteries
If the NX battery cabinets are installed on a raised floor, the battery power cables and circuit breaker
control cables may be routed to the UPS cabinet via the floor of the cabinet (bottom entry).
If the NX battery cabinets are installed adjacent to one another on a solid floor, these cables may be
passed between the cabinets through lifting slots in the lower sides of the cabinets.
Intertray connections must be made before the battery cabinet may be used.
Figure 12 Battery cabinet—details
Removable retainer
Tray handle
Insulated post
for cabling
20
Battery Installation
Figure 13 Narrow battery cabinet, 27 in. (690mm) - rear view
Top
cable
entry
BCB plate
and BCB
Battery
trays
Figure 14 Wide battery cabinet, 57 in. (1488mm) - front view
Top cable entry
Batteries
BCB plate and
BCB
Battery tray
support
Service
shelf
Battery tray
21
Battery Installation
3.4.3
Installation Considerations
Position—Liebert battery cabinets come in versions specific to either the left or right side of the
UPS. Control wires and power cables are cut to different lengths for the different versions. If the system includes a matching maintenance bypass cabinet (MBC), the MBC should be mounted to the left
of the UPS (nearest the busbars) and the battery cabinet(s) should be installed to the right of the
UPS. Otherwise, left-side placement of the battery cabinet is preferable.
The battery cabinet(s) are designed to be located conveniently next to each UPS module, and are also
available in stand-alone configurations with painted side panels. The front access design eliminates
side and rear service clearance requirements. Refer to Table 33 for battery cabinet dimensions and
weights.
Bolt-On Cabinets—Matching battery cabinets are designed to bolt onto the side of the UPS module
cabinet. Use bolts that ship with each unit to connect cabinet frames at posts, two places in the front
and two places in the rear.
Service Clearance—Allow front access to the battery cabinet at all times for maintenance and servicing. Electrical codes require that the battery cabinet be installed with no less than 3 feet (1m) of
clearance at the front of the cabinet when operating. Side and rear panels do not require service clearance.
Cables—Cables may be run between the cabinets through cutouts in the top of the cabinet, eliminating the need for external conduit runs. Route cables before moving cabinets into final position for bolting together. No top or bottom entry cables are required, except for remotely located cabinets which
require conduits. Refer to Figure 15.
Software—To allow the UPS to accurately display the battery run time, the number of battery cabinets must be noted when performing initial startup and setup using the configuration software. This
is to be performed by the Liebert Global Services customer engineer when commissioning the unit.
Casters and Adjustable Stops—The adjustable stops are not designed to bear the full weight of the
cabinet. Lower the stops until they are finger-tight in contact with the floor. Then tighten a small
amount with a wrench (less than two turns) to give a good friction fit. When mounting the battery
cabinet on seismic stands, ensure that the casters are bearing the weight of the cabinet.
Battery Support Tray—Be sure to connect the battery tray support to the front of the cabinet
before sliding a battery tray out for connection or service. Without the support, the battery tray may
fall out of the cabinet. See Figure 16 for details.
22
Battery Installation
Figure 15 Internal cable wiring from battery cabinet to Liebert NX
Power cables from output power switch
Power cables
from batteries
Power cables exit battery
cabinet, enter Liebert NX
Power cables run
across top
of Liebert NX
Power cables
(black) enter
channel down side
of NX to power
input connections
RIGHT SIDE CABLE
ENTRY SHOWN;
CUTOUTS ON LEFT
SIDE PERMIT
CONNECTION
FROM THAT SIDE.
Figure 16 Battery tray and supports
Battery tray supports attach
to interior surface of NX
front door (note notched
ends of supports)
Slot in support secured by
screw-in connector at
corner of battery tray ...
... and notched end of support
slips into slot at top corner
of battery compartment
23
Battery Installation
3.4.4
Connecting the Battery Cabinet to the UPS
After the battery cabinet equipment has been positioned and secured for operation and the batteries
have been connected, connect the power cables as described below. (See Figure 34.)
1. Verify that all incoming high and low voltage power circuits are de-energized and locked out or
tagged out before installing cables or making any electrical connections.
2. Remove the UPS left side panel to gain access to the equipment ground busbar.
3. Remove the external battery terminal block plate on the lower left side of the UPS behind the
front door.
4. Remove the battery cabinet front panel to gain access to the connection bars.
5. Connect the safety ground and any necessary bonding ground cables to the copper ground busbar.
(example: UPS located on the bottom of the equipment below the power connections).
All cabinets in the UPS system must be connected to the user's ground connection.
NOTE
The grounding and neutral bonding arrangement must be in accordance with the National
Electrical Code and all applicable local codes.
6. Connect the system battery cables from the UPS battery terminals (+ N -) to battery cabinet BCB
(+ N -) as shown in Figure 34. Be sure that the battery connections are made with the right
polarity, and tighten the connections to 44 lb-in. (5 N-m) (M6 Bolt). Do not close the battery circuit
breaker before the equipment has been commissioned.
7. Connect supplied auxiliary control cable to pins J10.2 and J10.3 on the U2 monitoring board (see
2.3 - Dry Contacts). Add a jumper wire between J10.3 and J10.4.
3.5
Non-Standard Batteries
When batteries other than a matching battery cabinet are used, a remote battery disconnect switch
with overcurrent protection is required per the National Electrical Code. Contact your local Liebert
sales representative about this option.
Install battery racks, cabinets and batteries in accordance with the manufacturer's instructions.
Verify that the battery area has adequate ventilation and battery operating temperature complies
with the manufacturer's specifications and with all applicable national and local codes.
If you have any questions concerning batteries, battery racks or accessories, contact Liebert Global
Services at 1-800-543-2378.
24
Maintenance Bypass Cabinet
4.0
MAINTENANCE BYPASS CABINET
The Maintenance Bypass Cabinet is designed to operate in UPS mode, bypass mode and maintenance
mode. The mode is selected using the Bypass Switch.
Figure 17 Single UPS with external Maintenance Bypass Cabinet—typical configuration
N
Input Supply
ABC
Sys In CB1
Qin UPS
N
Input Mains
Supply A B C
UPS 1
CB 1
Charger
Rectifier
CB 1
SW1-C
Rotary
Switch
Static
Switch
SW
Fuse
Inverter
SW1-D
Battery 1
Ext Byp
SW1-A
N
Ext Byp
ABC
Y
QoutUPS
Sys Out CB2
N
To Load
4.1
Bypass Switch
The Bypass Switch allows easy and rapid transfer of connected loads between the UPS and Bypass
source.
4.2
Normal (UPS) Mode
While the Maintenance Bypass Cabinet rotary switch is in the NORMAL position, the UPS is supplying the connected load with continuous, high-quality AC power. In this mode of operation, the load is
protected by the UPS.
25
Maintenance Bypass Cabinet
4.3
Bypass Mode
When the Maintenance Bypass Cabinet is in the Bypass mode, it provides an alternate path for power
to the connected equipment. Should the UPS need to be taken out of service for limited maintenance
or repair, manual activation of the bypass will cause an immediate transfer of the equipment from the
UPS inverter to the bypass source. In this mode, power will still be supplied to the UPS; however, the
load is NOT protected by the UPS.
4.4
Maintenance Mode
When the maintenance bypass cabinet is in the Maintenance mode, it provides an alternate path for
power to the connected equipment. Should the UPS need to be taken out of service for limited maintenance or repair. In this mode of operation, no power is supplied to the UPS and the load is NOT protected by the UPS.
4.5
Locating the Cabinet
This Maintenance Bypass Cabinet may be mounted to the left of the UPS or installed as a stand-alone
unit. In either case, ensure that the unit is in a well-ventilated area and that there is clearance for
access to the switches and cable connections as required by national and local codes.
4.6
Cable Installation
4.6.1
Wiring Preparation
Be sure that the unit is not connected to any AC utility power source or UPS before installing any wiring to this unit. This Maintenance Bypass Cabinet should be installed by a qualified / certified electrician.
!
WARNING
Please read this section thoroughly before attempting to install wiring to this unit.
Removing the Cover Plates
Plates cover the input and output terminals on the front of the Maintenance Bypass Cabinet (see
Figure 18). Remove these and keep the screws and plates for reinstallation.
Figure 18 Maintenance Bypass Cabinet—access plate removed
Extract screws
from corners to
remove the
access plate
26
Maintenance Bypass Cabinet
4.6.2
Power Cable Installation
Refer to Tables 29, 30 and 32 when selecting cables.
NOTE
Transient and steady state earth leakage currents may occur when starting the equipment.
This should be taken into account when selecting ground current detection devices because
these will carry the earth leakage currents of both the UPS equipment and the load.
4.6.3
Input/Output Wiring
Follow the steps below to connect the input wiring:
NOTE
Input wiring must be installed using conduit if cabinet is not mounted to the immediate left of
the UPS.
1. Locate the input wiring access (top or bottom access), remove the conduit landing plate and punch
the appropriate size hole for the size conduit being used. Pull the three/four input wires through
it, allowing some slack for installation. For cabinets that are located to the immediate left of the
UPS, the access plate is on the lower right of the cabinet. Remove the access plate and verify that
the edge guarding is installed and intact.See Figure 19.
Figure 19 Maintenance Bypass Cabinet wiring access panel
Wiring access is on
lower right side of
Maintenance
Bypass Cabinet
Access panel removed,
wiring connects NX and MBC
Edge Guard
2. Secure the conduit to the access plate of the Maintenance Bypass Cabinet.
3. Input power cables connect to the system input circuit breaker. Refer to Figure 35 Maintenance Bypass interconnection
4. Connect the ground (earth) wire to the earth busbar and tighten it to 44 lb-in. (5 N-m) (M6 bolt).
5. Locate UPS input and output cables and access panel to UPS on lower right side. See Figure 19.
NOTE
If the maintenance bypass cabinet is not to be bolted to the UPS, use either top or
bottom access plate.
6. Connect the system ground cable between the Maintenance Bypass Cabinet and UPS and tighten
the connections to 44 lb-in. (5 N-m) (M6 bolt).
27
Maintenance Bypass Cabinet
7. Connect the system input cables between the Maintenance Bypass Cabinet 'UPS Input' Busbars
(A-B-C N terminals) and UPS input busbars (A-B-C N terminals) and tighten the connections to
44 lb-in. (5 N-m) (M6 bolt).
8. Connect the system outnput cables between the Maintenance Bypass Cabinet 'UPS Output'
Busbars (A-B-C N terminals) and UPS output busbars (A-B-C N terminals) and tighten the
connections to 44 lb-in. (5 N-m) (M6 bolt).
9. Connect supplied control wire to X3 on the Parallel (M3) board (see Figure 20).
!
WARNING
The control wire must be installed to ensure proper operation of the system and fully protect
the load when switching between bypass cabinet and UPS.
:X T M IAN T
X2 1
P1
DBS
X3
X2 2
P2
Terminal Block Location
485485+
Figure 20 Maintenance bypass control wire location
NOTE
For startup procedure, see the UPS operations and maintenance manual, SL-25210.
28
Maintenance Bypass Cabinet
4.7
Bolting Cabinets Together
NOTE
UPS wiring must be completed before the cabinets are bolted together.
1. Line up cabinets so that mounting holes are aligned.
Place cabinets so mounting holes are
aligned.
A bolt from the adjacent cabinet may be
screwed into the threaded top hole, or a
bolt may be inserted through the lower
hole and screwed into the threaded hole
in the adjacent cabinet.
2. Using supplied hardware, bolt the cabinets together. The bolts may be inserted from either the
UPS side or from the MBS side, whichever is more convenient.
29
Options
5.0
OPTIONS
5.1
Load Bus Synchronization
The Load Bus Synchronizer (LBS) keeps the output of two independent UPS systems or parallel UPS
systems in synchronization even when the systems are operating in different modes and even when
either or both systems are operating on batteries. When the LBS is used, one UPS system is designated as master, the other as slave.
The LBS option is typically used with dual-corded equipment or with either the Liebert SmartSwitch
or Static Transfer Switch (STS) for single-corded equipment.
5.1.1
Performance Requirements
The DBS operates under the following conditions:
• Both master and slave are on inverter
(either system may be on inverter through the rectifier or on inverter through the batteries)
• Master on inverter, and slave on bypass
• Master on bypass, and slave on inverter
• Master and slave on bypass IF the bypass source is the same for both systems
5.1.2
DBS Cable and Settings
For NX-to-NX dual bus configuration, only one optional LBS cable is required, the built-in LBS will
operate normally without extra LBS control box or interface box. The LBS port is X4 on the parallel
board (M3). The parallel board is on the interior of the NX, above and left of the power electronics; see
Figure 30.
An optional, 9-pin LBS cable is used to connect two UPS systems through each system’s DB9 port on
its parallel board. For two parallel systems, the LBS cable can be mounted between any two units
belonging to different parallel systems. For information about the LBS kit or to order the optional
equipment, see your local Liebert representative.
The LBS cable is connected as illustrated in Figure 21.
Figure 21 Load Bus Synchronization cable connection
LBS Cable
Parallel Board
X3
Parallel Board
X4
X4
X2-1 X2-2
X2-1 X2-2
X1-1 X1-2
UPS Module or
System #1
X1-1 X1-2
The parallel board is on the
interior of the NX, above and
left of the power electronics;
see Figure 30
UPS Module or
System #2
The LBS function is activated with configuration software; when the LBS takes effect, the graphic
LCD will display “LBS active.”
30
Options
5.2
Configuring Parallel System Operation
5.2.1
General
The NX uses intelligent and reliable decentralized technology to achieve parallel operation of two or
more modules of the same rating.
The 1+N system is used to:
• Increase the reliability of the system to ensure adequate power supply to the critical load connected.
• Increase serviceability and allow the execution of maintenance operations and reparations without affecting the ordinary operating conditions of the system (depending on the redundancy level).
5.2.2
Features of Parallel System
• The hardware and firmware for parallel UPS module operation is standard in the NX, and the
configuration can be set up by changing the settings in configuration software.
• It is easy to install the parallel cables in a ring, providing high reliability and redundancy. And
the intelligent paralleling logic provides the user with maximum flexibility. For example, shutting down or starting up the UPS modules in the parallel system can be done in any sequence. If
an overload transfer occurs, the whole system can recover automatically from bypass mode after
the overload is cleared.
• The total load of the parallel system can be queried from each module’s liquid crystal display
screen.
Figure 22 1+N system block diagram
Supplied
by Others
N
N
Input Mains
Supply A B C
CB 1
UPS 2
Battery 2
Fuse
Static
Switch
Charger
Inverter
SW1-D
Battery 1
Fuse
SW1-C
Rectifier
SW1-C
Rectifier
CB 1
Static
Switch
Charger
Inverter
SW1-A
SW1-A
ABC
ABC
Q1Ext
QUPS
Q2Ext
Paralleling Cabinet
To Load
31
QByp
SW1-D
UPS 1
Input Mains
Supply A B C
Appendix
5.2.3
Operating Principles
Redundancy Paralleling
The 1+N parallel redundant system can noticeably improve system reliability. In normal condition,
none of the UPS modules work at full load. That means that even if the load is increased, the system
will not transfer to bypass. And when a UPS module shuts down due to any failure, the remaining
UPS modules can still power and protect the load. When redundancy is lost due to module failure or
load increase, the parallel system will trigger an alarm.
5.2.4
Operation Modes Summary
The parallel system also has operation modes such as normal, battery, bypass and maintenance
bypass. All UPS modules in the 1+N parallel system operate in coordination.
• Normal Mode Operation
The load is powered by the inverters of all the UPS modules in the system. If the frequency of
bypass is within the synchronous range, the inverter will be synchronized with the bypass. Otherwise, the system will operate at nominal frequency.
• Battery Mode Operation
The batteries of all UPS modules power the load through their inverters. The system operates at
nominal frequency.
• Bypass Mode Operation
The condition to transfer to bypass mode is essentially the same as that of single module system.
The bypass of all the UPS modules powers the load.
• Maintenance Bypass Mode Operation
The sequence to transfer to maintenance bypass mode is the same as for transferring a singlemodule system. The maintenance bypass switches should be switched on as synchronously as possible. Thus the system can be repaired without interrupting the power supply to critical load.
5.3
Installing Parallel System
The basic installation procedure of parallel system is the same as that of single module system. The
following sections introduce only the installation procedures specific to the parallel system.
5.3.1
Conditions for Parallel System
•
•
•
•
Each UPS module should have the same rating, the same firmware and hardware version.
Each UPS module must have the same bypass source.
The outputs of all UPS modules are connected altogether.
The main inputs can be from different sources, but the phase rotation sequence of main inputs,
bypass inputs and outputs must be correct and the same.
• The parallel logic cable and load sharing cable must be connected in a ring correctly (see
Figure 23).
5.3.2
Cabinet Installation
Parallel system composed of two or more UPS modules using parallel cabinet
The UPS modules that will form the 1+N system should be placed side-by-side. Each battery cabinet
is placed next to its corresponding UPS module.
The parallel cabinet should be placed in the middle of the system.
5.3.3
Preliminary Checks
Each UPS module should have the same rating, the same firmware and the same hardware version.
Refer to the instructions in 5.3.1 - Conditions for Parallel System.
5.3.4
Protective Devices
For each UPS, refer to Table 10. For each system, refer to Table 31.
32
Appendix
5.3.5
Power Cables
Wiring of power cables is similar to that of single module system (See 2.1 - Power Cabling). The
bypass sources of all modules should be the same, and the outputs should be connected altogether correctly.
Power cables will be supplied by customer. Power cables to the UPS’s of the 1+N paralleling cabinet
must be routed through either the top or bottom entry access of the UPS.
For systems using a parallel cabinet, see Figures 36 and 38 through 44 for power cable terminations.
NOTE
The length and specifications of power cables including the bypass input cables and UPS
output cables should be the same, thus the load can be shared evenly in bypass mode.
5.3.6
Parallel Control Cables
Parallel System Control Cables
Make the connections listed below on the parallel logic board (M3) inside the NX. (See Figure 30 for
the location of the parallel logic board):
Shielded and double-insulated control cables available in lengths of up to 100 feet (30m) must be
interconnected in a ring configuration between UPS modules as shown below. The ring configuration
ensures high reliability of the control (refer to Figure 23).
See Figure 25 for dry contacts control cable wiring diagram.
Figure 23 Connecting '1+N' system parallel control cables
1
Parallel Board
X3
P5
Parallel Board
X3
P5
X4
X2-2
UPS
2
X2-1
3
Parallel Board
X3
P5
X4
X2-2
4
Parallel Board
X3
P5
X4
X2-1
X2-2
X2-1
X4
X2-2
X2-1
X1-1
P1
X1-2
P4
P2
P1
X1-2
P3
X1-1
P4
P2
P1
X1-2
P3
X1-1
P4
P2
P1
X1-2
P3
P3
X1-1
P4
P2
Interconnecting
Cables
Auxiliary Dry Contact Cables
The external output breaker of each UPS must have Normally Open auxiliary contacts. These contacts must be wired to connector X3 on the Parallel Logic Board (M3). See Figure 24.
33
Appendix
:X T M IAN T
X2 2
P2
X2 1
P1
DBS
X3
485485+
Figure 24 Auxiliary dry contact cables for output breaker in multi-module system
!
CAUTION
The auxiliary control wire must be installed to ensure proper operation of the system.
NOTE
For startup procedure, see the UPS operations and maintenance manual, SL-25210.
Figure 25 Dry contacts, multiple UPS modules with distribution panel
Input Distribution
UPS 1
UPS 2
UPS N
M3 Board
X3
Ext. Maint. Ext. Out
M3 Board
X3
Ext. Maint. Ext. Out
M3 Board
X3
Ext. Maint. Ext. Out
Q1Ext
Q2Ext
QnExt
QByp
QUPS
To Load
34
Options
5.3.7
Emergency Power Off (EPO)
The external emergency stop facility is identical to that described for the single unit installation—
that an individual emergency stop button is provided for each unit.
Figure 26 Connecting EPO push button
UPS2
X2:3
X2:4
X2:3
X2:4
Monitor Board
Monitor Board
UPS1
Normally
Open EPO
UPS2
X2:1
X2:2
X2:1
X2:2
Monitor Board
UPS1
Normally
Closed EPO
35
Monitor Board
Options
5.4
Battery Circuit Breaker Box
The box contains the same battery isolating circuit breaker as mounted in the battery cabinet.
Two battery circuit breaker boxes are available for use in installations where the battery is not
installed in the battery cabinet, in which case the appropriate battery box is fitted as close as possible
to the battery and connected to the UPS equipment as illustrated in Figure 27.
The battery circuit breaker box, is required to protect the battery from overcurrents. It also provides
electrical isolation between the UPS and the battery, permitting technical service personnel to reduce
the risks involved in maintenance work to a minimum.
A separate safety earth must be connected between the UPS unit and circuit breaker box.
Two boxes are available depending on the UPS power rating.
Table 7
Available battery circuit breaker boxes
UPS
Dimensions (in)
H-W-D
Circuit Breaker
10-15 kVA
32.25x20.25x8.3
70A
20-30 kVA
32.25x20.25x8.3
125A
The circuit breaker has the following features:
• Short-circuit protection.
• Protection against battery cabinet and ups connection errors (polarity reversal +/-).
36
Options
Figure 27 Battery circuit breaker box connections
3.9"
(98mm)
10.8"
(274mm)
5.4"
Connect to UPS Module
(field-installed)
(3) 1/2" (12.7mm)
dia. knockouts
for control wiring
conduit entry
2.5"
(63.5mm)
4.0"
(101.2mm)
J10.2
J10.3
(-)
Midpoint
(+)
(GND)
(137mm)
8.3"
(211.7mm)
Top View
1
2
3
4
5
6
20.0"
(508mm)
15.0"
(381mm)
Midpoint
TB1
(-)
CB
Load
Side
(+)
COM Black
TB1
N.O. Red
Circuit Breaker
N.C. Blue
72 Cells
Bottom View
(-)
72 Cells
From Customer’s Battery System
(field-supplied and field-installed)
Front View
.31" dia. (7.9mm)
(Typ. 4 places)
(-) (+)
(+)
31.5"
(800.1mm)
(+)
32.3"
(819.2mm)
(-)
(-) (+)
CB
Line
Side
.38"
(9.5mm)
(3) 1/2" (12.7mm)
dia. knockouts
for power wiring
conduit entry
(refer to top dimension)
.5"
(12.7mm)
1"
1.93"
(25.4mm) (49mm)
.46"
(11.8mm)
.62"
NOTES:
(15.8mm)
1. NEMA 1 enclosure provided which is suitable for
.47"
wall mounting only. Approximate weight is 60 lb.
(11.8mm)
2. Hardware for connecting cables to the breaker supplied.
3. Circuit breaker, Cutler-Hammer FD4125ED13D15A02 for 20/30 kVA;
Midpoint Busbar Detail
FD4070ED13D15A02 for 10/15 kVA
4. Color: IBM off-white.
5. Mount enclosure and pull all cables into enclosure before installing dry contacts.
6. Low voltage wiring needs to enter from the top of the enclosure, in separate conduit from power cables.
7. Line side power connections to lugs: (1) # 6AWG per connection for 10 to 15 kVA.
(1) # 2AWG per connection for 20-30 kVA to lugs:. load side power connections to busbars; see detail.
DPN U3813078
8. Power cables must be sized to limit voltage drop from battery system to UPS to be a maximum 4 VDC.
Rev. N
NOTE
1. The signal cables in this figure must be shielded and double-insulated.
2. Connect the Pes (Protection Earth) of the UPS cabinet and BCB box to the same point.
37
UPS Specifications
6.0
UPS SPECIFICATIONS
These specifications describe requirements for the Liebert NX UPS.
6.1
Conformity and Standards
The UPS has been designed to conform to the following standards:
•
•
•
•
•
•
•
•
•
IEEC1000-4-5
ASME
CSA 22.2, No. 107.1
FCC Part 15, Class A
ISO 9001
National Electrical Code (NFPA-70)
NEMA PE-1
OSHA
UL Standard 1778
The UPS system has UL and c-UL approval.
6.2
UPS Environmental
The UPS is designed to operate under the following environmental conditions without damage or degradation in electrical operating characteristics:
Table 8
Environmental characteristics
Rated Power
10-30kVA
Operating Temperature, UPS
32°F to 104°F (0°C to 40°C)
Optimal Operating Temperature, Battery
68°F to 86°F (20°C to 30°C)
Relative Humidity
0 to 95%, non-condensing
Acoustical Noise, dBA at 39 in. (1m)
54
≤1000m per IEC 62040/3
Altitude of Operation
6.3
Storage-Transport Temperature, UPS
-4°F to 158°F (-20°C to 70°C)
Storage-Transport Temperature, Battery
-4°F to 86°F (-20°C to 30°C)
UPS Mechanical Characteristics
Table 9
Mechanical characteristics
Parameter
10kVA
15kVA
20kVA
Width, in. (mm)
24 (600)
Depth, in. (mm)
32.5 (825)
Height, in. (mm)
63 (1600)
Weight Without Inner Batteries, lb. (kg)
450 (205)
550 (250)
550 (250)
UPS12-100 weight
954 (433)
954 (433)
1054 (478)
1054 (478)
UPS12-140 weight
1098 (498)
1098 (498)
1198 (543)
1198 (543)
2800 (0.82)
4200 (1.23)
5500 (1.61)
8300 (2.43)
384 (652)
558 (948)
522 (886)
834 (1417)
Heat Dissipation, BTU/H (kWH)
Airflow, CFM (m
450 (205)
30kVA
3/h)
Cable Entry
Bottom or top
Color
PMS 877
Protection Grade (with open/closed front doors)
IP 20
38
UPS Specifications
6.4
UPS Electrical Characteristics
Table 10
UPS terminal
Input (for single-input unit)
Unit
Rating
Nominal
Input
Current
Maximum
Input
Current
10
28
15
42
20
30
Maximum Recommended Lug
OCP
Current
OCP
Device
Rating
Bolt Size
Lug T&B
One Hole 54000
Lug T&B
One Hole REDDY
35
42
45
6M (1/4”)
54105
62204
53
63
70
6M (1/4”)
54106
62204
56
70
84
90
6M (1/4”)
54107
62204
83
104
125
125
6M (1/4”)
54152
62205
Bolt Size
Lug T&B
One Hole 54000
Lug T&B
One Hole REDDY
Rectifier input (for dual input unit only)
Maximum Recommended Lug
Unit
Rating
Nominal
Input
Current
Maximum
Input
Current
OCP
Current
OCP
Device
Rating
10
25
31
37
40
6M (1/4”)
54130
62204
15
37
47
57
60
6M (1/4”)
54106
62204
20
50
63
76
80
6M (1/4”)
54107
62204
30
75
94
113
125
6M (1/4”)
54152
62205
Bypass input (for dual input units)
Maximum Recommended Lug
Unit
Rating
Nominal
Input
Current
OCP
Current
OCP
Device
Rating
Bolt Size
Lug T&B
One Hole
54000
Lug T&B
One Hole
REDDY
10
28
35
35
6M (1/4”)
54105
62204
15
42
53
60
6M (1/4”)
54106
62204
20
56
70
70
6M (1/4”)
54107
62204
30
83
104
110
6M (1/4”)
54152
62205
Unit
Rating
Nominal
Output
Current
OCP
Current
OCP
Device
Rating
Bolt Size
Lug T&B
One Hole 54000
Lug T&B
One Hole REDDY
10
28
35
35
6M (1/4”)
54130
62204
15
42
53
60
6M (1/4”)
54106
62204
20
56
70
70
6M (1/4”)
54106
62204
30
84
105
110
6M (1/4”)
54108
62205
Bolt Size
Lug T&B
One Hole 54000
Lug T&B
One Hole REDDY
Output
Maximum Recommended Lug
Battery
Maximum Recommended Lug
Unit
Rating
Battery
Current
OCP
Current
OCP
Device
Rating
10/15
55
55
70
6M (1/4”)
54106
62204
20/30
110
110
125
8M (5/16”)
54153
62212
39
UPS Specifications
6.4.1
Battery Manufacturers and Models
Either of two manufacturers’ batteries will be installed in the NX 10-30 kVA 208V as shipped. Below
are the battery makers and the models they supply.
Table 11
Approved batteries
Battery Manufacturer
Models Supplied
Enersys Yuasa
C&D Dynasty
6.4.2
NPX-80FR
NPX-100FR
NPX-150FR
UPS12-100MR
UPS12-140MR
-
Input Rectifier
Table 12
Rectifier input power
Rated Power
10kVA
15kVA
Rated Voltage, VAC
20kVA
Supply
3-phase, 4-wire plus ground
Input Voltage Tolerance, VAC (without derating)
166-239
Frequency, Hz
50 / 60
Input Frequency Tolerance %
±10
≤ 0.99 at full load
≤ 0.95 at 50% load
Power Factor
Harmonic Current
Less than 4% at full rated UPS output load
Input Current,1 Nominal, A
28
42
56
83
Output Current, Nominal, A
28
42
56
83
Notes:
1. Overload capacity of input current:
6.4.3
30kVA
120/208
100% Imax <I<125% Imax: 10 min.
125% Imax <I<150% Imax: 1 min.
I>150%: Limits input current immediately
DC Intermediate Circuit
Table 13
DC intermediate circuit
Rated Power
Recommended number of lead-acid batteries
10kVA
15kVA
20kVA
30kVA
Number of batteries is 24 jars (12V per jar), or 144 cells (2V per
cell) for VRLA. The unit is shipped with a nominal voltage of
288VDC.
Recommended float charge voltage
2.27VDC*
Recommended boost charge voltage
2.3VDC*
Recommended end of discharge voltage
1.65-1.8 VDC
Maximum recharge battery current, A
7.5
Maximum boost charge duration, min.*
7.5
15
1440
Boost-float threshold current, A*
0.1 C default
Temperature voltage compensation, mV/°C*
3
≤1
Ripple voltage superimposed %
* Set by configuration software and based on usage of VLRA batteries.
40
15
UPS Specifications
6.4.4
Inverter Output
Table 14
Inverter output
Rated Power
10kVA
15kVA
Rated voltage, VAC
20kVA
120/208
Supply
3-phase, 4-wire plus ground
Frequency, Hz
Rated Power, kW
50 / 60
8
12
16
24
10 minutes - 105-125% load
Three -phase transient overload,
min. load
1 minute - 126-150% load
Voltage Regulation %
±1.0% three-phase RMS average for a balanced three-phase load
±2.0% three-phase RMS average for a 100% unbalanced load
Frequency Regulation %
Nominal frequency regulation is ±0.05% in single module mode,
and+/- 0.25% in parallel mode.
Maximum rate of change of
frequency, Hz/sec
For single mode, the slew rate is adjustable from 0.1Hz/s to 3Hz/s
Current rating of neutral cable, A
6.4.5
30kVA
1.5 x input current
Bypass Input
Table 15
Bypass input
Rated Power
10kVA
15kVA
Rated voltage, VAC
20kVA
30kVA
120/208
Supply
Three-phase, 4-wire plus ground
Rated Current, A
208VAC
Bypass voltage tolerance %
28
42
Upper limit: +10%, +15% or +20%
Lower limit: -10%, -20%, -30% or -40%
Frequency, Hz
83
Upper limit default: +15%
Lower limit default: -20%
50 / 60
Input frequency tolerance %
± 10 or ± 20%; default ±10%
Current rating of neutral cable, A
Bypass overload capacity
(all ratings)
56
1.5 x input current
Time
Long-term operation:
10 minutes:
100milliseconds:
41
Load
<135% load
135% - 170% load
1000% full UPS rated output current
Installation Drawings
7.0
INSTALLATION DRAWINGS
The diagrams in this section illustrate the key mechanical and electrical characteristics of the NX
UPS System cabinets.
Figure 28 Dimensional view- front and left side views
600
825
10mm dia. threaded
mounting holes
Monitoring
Panel
Leveler
1600
Detail “A” Rear of unit
shown without side panel
Air intake area.
Do not block
air filter.
90
FRONT VIEW
LEFT SIDE VIEW
Adjustable Stops
(see Note 11)
1. All dimensions are in millimeters.
2. A minimum of 24 inches clearance above the unit is required for air exhaust.
3. Installation and service access required. Left-side access recommended for maximum ease of
installation.
4. Keep cabinet within 15 degrees of vertical while handling.
5. Top and bottom cable entry available through removal access plates. Remove punch to suit conduit size
and replace.
6. Unit bottom is structurally adequate for forklift handling.
7. Open door to replace air filter, washable type, size 354x314.
8. Threaded mounting holes used for seismic anchoring or floor stand. Note: If a floor stand is used, the
weight of the unit must be supported under all casters.
9. Each mounting location is supported by two 10 GA. (.135”) galvanized steel. The threaded 12mm insert
is approximately 3/4” deep. Mounting bolts must be threaded into unit.
10. Includes side panel. Refer to Detail A for dimension to frame with side panel removed. Side panels are
removed between adjacent units that are bolted together.
11. Adjustable stops are not designed to carry the full weight of the cabinet. Finger-tighten stop against the
floor, then tighten with a wrench less than two turns for friction against the floor.
42
Installation Drawings
Figure 29 Dimensions continued—top and bottom views
10mm dia. threaded
mounting holes 4 (typ).
See Notes 8 and 9 above.
Rear stabilizing foot
Air
Air Exhaust
Power Cable
Entry Area
Top and
Bottom
TOP VIEW
BOTTOM VIEW
Figure 30 Main components—typical unit
Parallel Board (M3)
Monitor
Board
(U2)
Power
Electronics
IntelliSlot
Communication
Ports
Input
Breaker
Rotary
System
Switch
Battery
Trays
Input Breaker
Access Plate
Internal and
External Battery
Terminal Block
Access Plate
Front View
(with door open)
43
DPN U3812048
Rev. 1
Installation Drawings
Figure 31 Cable connections
AC output cable
connections
Bypass AC input cable
connections
Input Neutral Bus
(side view)
Input/Output
Neutral
Output Neutral Bus
(side view)
Earth
Power Earth
(side view)
Battery connections (+ N -)
4.1 to battery
4.2 to external battery cabinet
NOTES
1. All dimensions are millimeters.
2. Top and bottom cable entry available through removable access plates. Remove, punch to
accommodate conduit size and replace.
3. Control wiring and power wiring must be run in separate conduit. Output and input cables must be
run in separate conduit.
4. Aluminum and copper-clad aluminum cables are not recommended,
5. All wiring is to be in accordance with national and local electrical codes.
44
Installation Drawings
Figure 32 Location of internal batteries
Battery
186mm
417mm
687mm
45
Installation Drawings
Figure 33 Battery connections
DYNASTY BATTERY
TOP LAYER
MIDDLE LAYER
W506 to W507
W501 3pcs
+
-
+
-
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
+
-
+
-
W500 18pcs
W510 to W511
W502 to W503 W503 to W502
W504 to W505
BOTTOM LAYER
W511 to W510
W507 to W506
W509 to W508
+
N
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
CON4
W505 to W504
46
W508 to W509
Installation Drawings
Negative (-)
Positive (+)
Refer to Table 16 for key to interconnection
Midpoint (N)
Figure 34 Battery cabinet interconnection
Positive (+)
Midpoint (N)
Negative (-)
Breaker
Detail
Connection
Detail
Breaker
Detail
A
A
B
B
B
OR
A
UPS Module
Front View
with doors removed
27" Battery Cabinet
Front View
without doors and
protective plates
59" Battery Cabinet
Front View
without doors and
protective plates
NOTES:
1. All Liebert-supplied cable must be repositioned prior to and while the cabinets are being placed in
their final installed location.
2. All interconnection hardware supplied by Liebert
3. All interconnection cables supplied by Liebert when bolted together.
4. Interconnection cables field-supplied when battery cabinets are stand-alone.
5. Refer to the individual drawing of each piece of equipment for additional details.
Table 16
Run
Liebert -supplied interconnect wiring
From
To
Conductors
A
UPS battery terminal block
External 27" or 59" battery cabinet
Positive, midpoint, negative
B
Battery cabinet terminal block
UPS monitor board
Battery breaker aux contacts
47
Installation Drawings
Figure 35 Maintenance Bypass interconnection
Refer to Table 17 for key to interconnection
Maintenance Bypass/Transformer Cabinet
front view without front door and panel
UPS Module
left-side view without side panel
NOTES
1. All Liebert-supplied cable must be repositioned prior to and while the cabinets are being placed in their
final installed location.
2. All interconnection hardware supplied by Liebert.
3. AC connections must be made to the UPS module before attaching maintenance bypass/transformer
cabinet to UPS module.
4. Utility AC source neutral not required for maintenance bypass/transformer cabinet types D, E, M, N.
5. All cabling will be field-supplied when maintenance bypass/transformer cabinet is configured as standalone cabinet.
6. Maintenance bypass/transformer cabinets must attach to the left side only.
7. Refer to the individual drawing of each piece of equipment for additional details.
Table 17
Run
Liebert-supplied interconnect wiring for Maintenance Bypass Cabinet
From
To
Conductors
A
Utility AC source
Maintenance
Ph A, B, C bypass/ transformer cabinet
B
Utility AC source
Maintenance
Neutral bypass/ transformer cabinet
C
Maintenance
UPS module AC input
Neutral - UPS Input
D
Maintenance
UPS module AC input
Ph A, B, C - UPS Input
E
UPS module AC output
Maintenance
Ph A, B, C - UPS Output
F
UPS module AC output
Maintenance
Neutral - UPS Output
G
Maintenance
Load AC connection
Neutral bypass cabinet
H
Maintenance
Load AC connection
Ph A, B, C bypass cabinet
I
Utility AC source
All ground connections
Ground
J
Monitoring terminal block
UPS Parallel Logic Board (M3)
Bypass contacts
48
Installation Drawings
Figure 36 NX 1+1 parallel cabinet interconnections
1+1 Parallel Cabinet
(Front View Without Front Door and Panel)
J
J
J
A
D1
D2
E1,E2
F1,F2
C
H
F1, F2
K1,K2
D1
D2
H
B
B
F1,F2
G
I
G
H
K1
K2
I
D1,D2
A
D1
D2
G
F1,F2
I
E1,E2
I
UPS Module Left Side View
(Without Side Panel)
Type BR0
Type A00
Type DR1 & CR1
NOTES:
1. All Liebert-supplied cable will need to be repositioned prior to and while setting the cabinets in their
installed location.
2. All interconnection cable and hardware supplied by others.
3. AC connections must be made to the UPS modules before attaching paralleling cabinet to UPS modules.
4. Utility AC source neutral not required for maintenance bypass/transformer cabinet type CR1.
5. Paralleling cabinets must between both UPS modules.
6. Refer to the individual drawing of each piece of equipment for additional details
Table 18
Run
Liebert-supplied interconnect wiring
From
To
Conductors
Cabinet Type
A
Utility AC Source
Paralleling Cabinet
PH A, B, C - Bypass
BR0, CR1, DR1
B
Utility AC Source
Paralleling Cabinet
Neutral - Bypass
BR0, CR1, DR1
C
Utility AC Source
UPS Module AC Input
PH A,B,C - UPS
A00, BR0
D1
UPS #1 Module AC Output
Paralleling Cabinet
PH A, B, C - UPS
A00, BR0, CR1, DR1
D2
UPS #2 Module AC Output
Paralleling Cabinet
PH A, B, C - UPS
A00, BR0, CR1, DR1
E
Utility AC Source
UPS #1 Module AC Input
Neutral - UPS Input
A00, BR0, CR1, DR1
E2
Utility AC Source
UPS #1 Module AC Input
Neutral - UPS Input
A00, BR0, CR1, DR1
F1
Paralleling Cabinet
UPS #1 Module AC Output
Neutral - UPS Output
A00, BR0, CR1, DR1
F2
Paralleling Cabinet
UPS #1 Module AC Output
Neutral - UPS Output
A00, BR0, CR1, DR1
G
Paralleling Cabinet
Load AC Connection
Neutral - Load
A00, BR0, CR1, DR1
H
Paralleling Cabinet
Load AC Connection
PH A, B, C - Load
A00, BR0, CR1, DR1
I
Utility AC Source
All Ground Connections
Ground
A00, BR0, CR1, DR1
J
Monitoring Terminal Block
UPS Parallel Logic Board (M3)
Auxiliary Contacts
A00, BR0, CR1, DR1
K1
UPS #1 Module AC Input
Paralleling Cabinet
PH A, B, C - UPS
CR1, DR1
K2
UPS #1 Module AC INPUT
Paralleling Cabinet
PH A, B, C - UPS
CR1, DR1
49
Installation Drawings
Figure 37 Lineup detail—SlimLine distribution cabinet to NX
E
H
A
C
H
G
B
D
D
G
E
H
NOTES:
1. All Liebert-supplied cable will need to be repositioned prior to and while setting the cabinets in their
installed location.
2. All interconnection cables and hardware supplied by Liebert.
3. AC connections must be made to the UPS module before attaching.
4. See Figure 45 for placement of distribution cabinet.
5. Refer to the individual drawing of each piece of equipment for additional details.
Table 19
Run
Liebert-supplied interconnect wiring—SlimLine distribution cabinet to NX
From
To
Conductors
A
Distribution Cabinet
Load AC Connection
Isolated Ground
B
Distribution Cabinet
Load AC Connection
Neutral
Distribution Cabinet
C
Distribution Cabinet
Load AC Connection
Ground
Distribution Cabinet
D
Distribution Cabinet
Load AC Connection
PH A,B,C
E
UPS Module AC Output
Distribution Cabinet
PH A, B, C
G
UPS Module AC Output
Distribution Cabinet
Neutral
H
UPS Module AC Output
All Ground Connections
Ground
50
Installation Drawings
Figure 38 Lineup detail—1+N Type A connection to NX
1 + N Parallel Cabinet
(front view without front door and panel)
1. All Liebert-supplied cable must be repositioned prior to and while setting the cabinets in their installed
location.
2. All interconnection cables and hardware supplied by others.
3. AC connections must be made to the UPS modules before attaching paralleling cabinet to UPS modules
4. The interconnecting output cables between the paralleling cabinet and the UPSes must be the same size
and the same length.
5. The location of the system output neutral busbar (connection K) and the ground busbar (connections H, I
and J) are shown for a left-access style. For right-access version, these busbars are at opposite locations
6. Refer to the individual drawing of each piece of equipment for additional details.
Table 20
Interconnect wiring—1+N Type A connection to NX
RUN
FROM
TO
CONDUCTORS
A1-A4
Utility AC Source
UPS #1-UPS #4 Module AC Input
Ph A, B, C - UPS Input
B1-B4
Utility AC Source
UPS #1-UPS #4 Module AC Input
Neutral - UPS Input
C1-C4
UPS #1-UPS #4 Module AC Output
Paralleling Cabinet
Ph A, B, C- UPS Output
D1-D4
UPS #1-UPS #4 Module AC Output
Paralleling Cabinet
Neutral - UPS Output
E1-E4
Paralleling Cabinet
UPS #1-UPS #4 Module AC Ground
Ground-UPS
F
Paralleling Cabinet
Load AC Connection
Ph A, B, C - Load
G
Paralleling Cabinet
Load AC Connection
Ground-Load
H
Paralleling Cabinet
Load AC Connection
Neutral-Load
Paralleling Cabinet
UPS #1-UPS #4 Module
Parallel Logic Board (M3)
Output Breaker Aux Contact
I1-I4
51
Installation Drawings
Figure 39 Lineup detail—1+N Type A1 connection to NX
1 + N Parallel Cabinet
(front view without front door and panel)
1 + N Cabinet Interior View
(neutral and ground busbar location)
1. All Liebert-supplied cable must be repositioned prior to and while
setting the cabinets in their installed location.
2. All interconnection cables and hardware supplied by others.
3. AC connections must be made to the UPS modules before attaching
paralleling cabinet to UPS modules.
4. The interconnecting input cables between the paralleling cabinet
and the UPSes must be the same size and the same length.
5. The interconnecting output cables between the paralleling cabinet
and the UPSes must be the same size and the same length.
6. The location of the system output neutral busbar (connection K)
and the ground busbar (connections H, I and J) are shown for a
left-access style. For right-access version, these busbars are at
opposite locations.
7. Refer to the individual drawing of each piece of equipment for
additional details.
UPS Module Left Side View
(without side panel)
Table 21
Interconnect wiring—1+N Type A1 connection to NX
Run
From
To
Conductors
A
Utility AC Source
Paralleling Cabinet
Ph A, B, C - System Input
B
Utility AC Source
Paralleling Cabinet
Ground - System Input
C
Utility AC Source
Paralleling Cabinet
Neutral - System Input
D1-D4
Paralleling Cabinet
UPS #1-UPS #4 Module AC Ground
Ph A, B, C- UPS Input
E1-E4
Paralleling Cabinet
UPS #1-UPS #4 Module AC Ground
Neutral - UPS Input
F1-F4
UPS #1-UPS #4 Module AC Output
Paralleling Cabinet
Ph A, B, C - UPS Output
G1-G4
UPS #1-UPS #4 Module AC Output
Paralleling Cabinet
Neutral - UPS Output
H1-H4
Paralleling Cabinet
UPS #1-UPS #4 Module AC Ground
Ground - UPS
I
Paralleling Cabinet
Load AC Connection
Ph A, B, C - Load
J
Paralleling Cabinet
Load AC Connection
Ground - Load
K
Paralleling Cabinet
Load AC Connection
Neutral - Load
Paralleling Cabinet
UPS #1-UPS #4 Module
UPS Parallel Logic Board (M3)
Output Breaker Aux Contact
L1-L4
52
Installation Drawings
Figure 40 Lineup detail—1+N Type B connection to NX
I1, I2
1 + N Parallel Cabinet
(front view without front door and panel)
1 + N Cabinet Interior View
(neutral and ground busbar location)
1. All Liebert-supplied cable must be repositioned prior to and
while setting the cabinets in their installed location.
2. All interconnection cables and hardware supplied by others.
3. AC connections must be made to the UPS modules before
attaching paralleling cabinet to UPS modules.
4. The interconnecting output cables between the paralleling
cabinet and the UPSes must be the same size and the same
length.
5. The location of the system output neutral busbar (connection
K) and the ground busbar (connections H, I and J) are shown
for a left-access style. For right-access version, these busbars
are at opposite locations.
6. Refer to the individual drawing of each piece of equipment for
additional details.
UPS Module Left Side View
(without side panel)
Table 22
Interconnect wiring—1+N Type B connection to NX
Run
From
To
Conductors
A1-A4
Utility AC Source
UPS #1-UPS #4 Module AC Input
Ph A, B, C - UPS Input
B1-B4
Utility AC Source
UPS #1-UPS #4 Module AC Input
Neutral - UPS Input
C1-C4
UPS #1-UPS #4 Module AC Output
Paralleling Cabinet
Ph A, B, C - UPS Output
D1-D4
UPS #1-UPS #4 Module AC Output
Paralleling Cabinet
Neutral - UPS Output
E1-E4
Paralleling Cabinet
UPS #1-UPS #4 Module AC Ground
Ground-UPS
F
Paralleling Cabinet
Load AC Connection
Ph A, B, C - Load
G
Paralleling Cabinet
Load AC Connection
Ground-load
H
Paralleling Cabinet
Load AC Connection
Neutral-load
Paralleling Cabinet
UPS #1-UPS #4 Module
UPS Parallel Logic Board (M3)
Output Breaker Aux Contact
I1-I4
53
Installation Drawings
Figure 41 Lineup detail—1+N Type B1 connection to NX
1 + N Cabinet Side View
(without side panel or door)
UPS Module Left Side View
(without side panel)
Table 23
Run
1 + N Parallel Cabinet
(front view without front door and panel)
1 + N Cabinet Interior View
(neutral and ground busbar location)
1. All Liebert-supplied cable must be repositioned prior to and while
setting the cabinets in their installed location.
2. All interconnection cables and hardware supplied by others.
3. AC connections must be made to the UPS modules before attaching
paralleling cabinet to UPS modules.
4. The interconnecting input cables between the paralleling cabinet and
the UPSes must be the same size and the same length.
5. The interconnecting output cables between the paralleling cabinet and
the UPSes must be the same size and the same length.
6. The location of the system output neutral busbar (connection K) and
the ground busbar (connections H, I and J) are shown for a left-access
style. For right-access version, these busbars are at opposite locations.
7. Refer to the individual drawing of each piece of equipment for
additional details.
Interconnect wiring—1+N Type B1 connection to NX
From
To
Conductors
A
Utility AC Source
Paralleling Cabinet
Ph A, B, C - System Input
B
Utility AC Source
Paralleling Cabinet
Ground - System Input
C
Utility AC Source
Paralleling Cabinet
Neutral -system Input
D1-D4
Paralleling Cabinet
UPS #1-UPS #4 Module AC Input
Ph A, B, C - UPS Input
E1-E4
Paralleling Cabinet
UPS #1-UPS #4 Module AC Input
Neutral - UPS Input
F1-F4
UPS #1-UPS #4 Module AC Output
Paralleling Cabinet
Ph A, B, C - UPS Output
G1-G4 UPS #1-UPS #4 Module AC Output
H1-H4
Paralleling Cabinet
Paralleling Cabinet
Neutral - UPS Output
UPS #1-UPS #4 Module AC Ground
Ground-UPS
I
Paralleling Cabinet
Load AC Connection
Ph A, B, C - Load
J
Paralleling Cabinet
Load AC Connection
Ground-load
K
Paralleling Cabinet
Load AC Connection
Neutral-Load
Paralleling Cabinet
UPS #1-UPS #4 Module
UPS Parallel Logic Board (M3)
Output Breaker Aux Contact
Paralleling Cabinet
UPS #1-UPS #4 Module
UPS Parallel Logic Board (M3)
Rotary Switch Aux Contact
L1-L4
M1-M4
54
Installation Drawings
Figure 42 Lineup detail—1+N Type C connection to NX
1 + N Cabinet Side View
(without side panel or door)
1 + N Parallel Cabinet
(front view without front door and panel)
1. All Liebert-supplied cable must be repositioned prior to and while
setting the cabinets in their installed location.
2. All interconnection cables and hardware supplied by others.
3. AC connections must be made to the UPS modules before attaching
paralleling cabinet to UPS modules.
4. Utility AC source neutral not required for maintenance bypass/
transformer cabinet Type C.
5. The interconnecting input cables between the paralleling cabinet and
the UPSes must be the same size and the same length.
6. The interconnecting output cables between the paralleling cabinet
and the UPSes must be the same size and the same length.
7. The location of the system output neutral busbar (connection K) and
the ground busbar (connections H, I and J) are shown for a left-access
style. For right-access version, these busbars are at opposite locations.
8. Refer to the individual drawing of each piece of equipment for
additional details.
UPS Module Left Side View
(without side panel)
Table 24
1 + N Cabinet Interior View
(neutral and ground busbar location)
Interconnect wiring—1+N Type C connection to NX
Run
From
To
Conductors
A
Utility AC Source
Paralleling Cabinet
Ph A, B, C-system Input
B
Utility AC Source
Paralleling Cabinet
Ground - System Input
C1-C4
Paralleling Cabinet
UPS #1-UPS #4 Module AC Input
Ph A ,B, C - UPS Input
D1-d4
Paralleling Cabinet
UPS #1-UPS #4 Module AC Input
Neutral - UPS Input
E1-E4
UPS #1-UPS #4 Module AC Output
Paralleling Cabinet
Ph A, B, C - UPS Output
G1-G4
UPS #1-UPS #4 Module AC Output
Paralleling Cabinet
Neutral - UPS Output
H1-H4
Paralleling Cabinet
UPS #1-UPS #4 Module AC Ground
Ground - UPS
I
Paralleling Cabinet
Load AC Connection
Ph A ,B, C - Load
J
Paralleling Cabinet
Load AC Connection
Ground - Load
K
Paralleling Cabinet
Load AC Connection
Neutral - Load
Paralleling Cabinet
UPS #1-UPS #4 Module
UPS Parallel Logic Board (M3)
Output Breaker Aux Contact
Paralleling Cabinet
UPS #1-UPS #4 Module
UPS Parallel Logic Board (M3)
Rotary Switch Aux Contact
L1-l4
M1-M4
55
Installation Drawings
Figure 43 Lineup detail—1+N Type C1 connection to NX
1 + N Cabinet Interior View
(neutral and ground busbar location)
1 + N Cabinet Side View
1 + N Parallel Cabinet
(without side panel or door) (front view without front door and panel)
UPS Module Left Side View
(without side panel)
Table 25
1. All Liebert-supplied cable must be repositioned prior to and while setting
the cabinets in their installed location.
2. All interconnection cables and hardware supplied by others.
3. AC connections must be made to the UPS modules before attaching
paralleling cabinet to UPS modules.
4. The interconnecting input cables between the paralleling cabinet and the
UPSes must be the same size and the same length.
5. The interconnecting output cables between the paralleling cabinet and the
UPSes must be the same size and the same length.
6. The location of the system output neutral busbar (connection K) and the
ground busbar (connections H, I and J) are shown for a left-access style.
For right-access version, these busbars are at opposite locations.
7. Refer to the individual drawing of each piece of equipment for additional
details.
Interconnect wiring—1+N Type C1 connection to NX
Run
From
To
Conductors
A
B
Utility AC Source
Paralleling Cabinet
Ph A, B, C - System Input
Utility AC Source
Paralleling Cabinet
Ground - System Input
C
Utility AC Source
Paralleling Cabinet
Neutral -System Input
D1-D4
Paralleling Cabinet
UPS #1-UPS #4 Module AC Input
Ph A, B, C - UPS Input
E1-E4
Paralleling Cabinet
UPS #1-UPS #4 Module AC Input
Neutral - UPS Input
F1-F4
UPS #1-UPS #4 Module AC Output
Paralleling Cabinet
Ph A, B, C - UPS Output
G1-G4
UPS #1-UPS #4 Module AC Output
Paralleling Cabinet
Neutral - UPS Output
H1-H4
Paralleling Cabinet
UPS #1-UPS #4 Module AC Ground
Ground-UPS
I
Paralleling Cabinet
Load AC Connection
Ph A, B, C - Load
J
Paralleling Cabinet
Load AC Connection
Ground-Load
K
Paralleling Cabinet
Load AC Connection
Neutral- Load
L1-L4
Paralleling Cabinet
UPS #1-UPS #4 Module
UPS Parallel Logic Board (M3)
Output Breaker Aux Contact
56
Installation Drawings
Figure 44 Lineup detail—1+N Type D connection to NX
1 + N Parallel Cabinet
1 + N Cabinet Side View
(without side panel or door) (front view without front door and panel)
UPS Module Left Side View
(without side panel)
Table 26
1 + N Cabinet Interior View
(neutral and ground busbar location)
1. All Liebert-supplied cable must be repositioned prior to and while
setting the cabinets in their installed location.
2. All interconnection cables and hardware supplied by others.
3. AC connections must be made to the UPS modules before attaching
paralleling cabinet to the UPS modules.
4. The interconnecting input cables between the paralleling cabinet and
the UPSes must be the same size and the same length.
5. The interconnecting output cables between the paralleling cabinet and
the UPSes must be the same size and the same length
6. The location of the system output neutral busbar (connection K) and the
ground busbar (connections H, I and J) are shown for a left-access style.
For right-access version, these busbars are at opposite locations.
7. Refer to the individual drawing of each piece of equipment for additional
details.
Interconnect wiring—1+N Type D connection to NX
Run
From
To
Conductors
A
Utility AC Source
Paralleling Cabinet
Ph A, B, C - System Input
B
Utility AC Source
Paralleling Cabinet
Ground - System Input
C
Utility AC Source
Paralleling Cabinet
Neutral - System Input
D1-D4
Paralleling Cabinet
UPS #1-UPS #4 Module AC Input
Ph A, B, C - UPS Input
E1-E4
Paralleling Cabinet
UPS #1-UPS #4 Module AC Input
Neutral - UPS Input
F1-F4
UPS #1-UPS #4 Module AC Output
Paralleling Cabinet
Ph A, B, C - UPS Output
G1-G4
UPS #1-UPS #4 Module AC Output
Paralleling Cabinet
Neutral - UPS Output
H1-H4
Paralleling Cabinet
UPS #1-UPS #4 Module AC Ground
Ground - UPS
I
Paralleling Cabinet
Load AC Connection
Ph A, B, C - Load
J
Paralleling Cabinet
Load AC Connection
Ground - Load
K
Paralleling Cabinet
Load AC Connection
Neutral -L oad
L1-L4
Paralleling Cabinet
UPS #1-UPS #4 Module
UPS Parallel Logic Board (M3)
Output Breaker Aux Contact
M1-M4
Paralleling Cabinet
UPS #1-UPS #4 Module
UPS Parallel Logic Board (M3)
Rotary Switch Aux Contact
57
Installation Drawings
MBC
UPS
UPS
Battery
SlimLine
1+N
Paralleling
Cabinet
58
1+N
Paralleling
Cabinet
SlimLine
SlimLine
Battery
MBC
SlimLine
UPS
UPS
SlimLine
UPS
SlimLine
SlimLine
Figure 45 SlimLine locations
Specifications and Technical Data
8.0
SPECIFICATIONS AND TECHNICAL DATA
8.1
Lug Size and Torque Requirements
Use commercially available solderless lugs for the wire size required for your application. Refer to
Table 27. Connect wire to the lug using tools and procedures specified by the lug manufacturer.
Table 27
Torque specifications
Nut and Bolt CombinationS
Grade 2 Standard
Electrical Connections
with Belleville Washers
Bolt Shaft Size
Lb-in
N-m
Lb-in
N-m
1/4
5/16
3/8
1/2
53
107
192
428
6.0
12
22
22
46
60
95
256
5.2
6.8
11
29
Circuit Breakers With Compression Lugs (For Power Wiring)
Wire Size or Range
Lb-in
#6 - #4
#3 - #1
1/0 - 2/0
3/0 - 200 MCM
250 - 400 MCM
500 - 700 MCM
100
125
150
200
250
300
Circuit Breakers With Compression Lugs (For Power Wiring)
Current Rating
Lb-in
400 - 1200 Amps
300.00
Terminal Block Compression Lugs (For Control Wiring)
AWG Wire Size or Range
Lb-in
#22 -#14
3.5 to 5.3
N-m
11
14
17
23
28
34
N-m
34.00
N-m
0.4 to 0.6
NOTE: Use the values in this table unless the equipment is labeled with a different torque value.
Table 28
Battery torque rating
Battery
Initial Torque
in-lb (N-m)
Annual Torque
in-lb (N-m)
UPS12-100MR
40 (4.5)
32 (3.48)
UPS12-140MR
40 (4.5)
32 (3.48)
UPS12-200MR
40 (4.5)
32 (3.48)
UPS12-270MR
40 (4.5)
32 (3.48)
UPS12-310MR
65 (7.4)
52 (5.88)
UPS12-370MR
65 (7.4)
52 (5.88)
UPS12-475MR
110 (12.4)
110 (12.4)
59
Specifications and Technical Data
Table 29
kVA Type
Maintenance bypass cabinet electrical data (single input)
Maintenance
Bypass
I/P Voltage
(VAC)
Bypass Cabinet
Max Input
Current
Cabinet
Input OCP
CB Size (A)
O/P Voltage
(VAC)
Nominal O/P
Current Rating (A)
Output
OCP CB Size (A)
30
A, J
208
104
125
208
83
125
30
B, K
480
47
60
208
83
125
30
B, K
600
37
50
208
83
125
30
B, K
220
101
125
208
83
125
30
C, L
480
48
60
480
36
50
30
C, L
600
38
50
600
29
40
30
C, L
220
105
125
220
79
100
30
D, M
480
47
60
208
83
125
30
D, M
600
38
50
208
83
125
30
D, M
208
108
150
208
83
125
30
D, M
220
103
125
208
83
125
30
D, M
240
93
125
208
83
125
30
E, N
480
48
60
480
36
50
30
E, N
600
39
50
600
29
40
30
E, N
220
106
125
220
79
100
20
A, J
208
69
90
208
56
70
20
B, K
480
31
40
208
56
70
20
B, K
600
25
30
208
56
70
20
B, K
220
68
90
208
56
70
20
C, L
480
32
40
480
24
30
20
C, L
600
26
40
600
19
30
20
C, L
220
70
90
220
52
70
20
D, M
480
31
40
208
56
70
20
D, M
600
25
40
208
56
70
20
D, M
208
72
90
208
56
70
20
D, M
220
68
90
208
56
70
20
D, M
240
62
80
208
56
70
20
E, N
480
32
40
480
24
30
20
E, N
600
26
40
600
19
30
20
E, N
220
70
90
220
52
70
15
A, J
208
52
70
208
42
60
15
B, K
480
23
30
208
42
60
15
B, K
600
19
30
208
42
60
15
B, K
220
51
70
208
42
60
15
C, L
480
24
30
480
18
30
15
C, L
600
19
30
600
14
20
15
C, L
220
52
70
220
39
50
15
D, M
480
23
30
208
42
60
15
D, M
600
19
30
208
42
60
15
D, M
208
54
70
208
42
60
15
D, M
220
51
70
208
42
60
60
Specifications and Technical Data
Table 29
kVA Type
Maintenance bypass cabinet electrical data (single input) (continued)
Maintenance
Bypass
I/P Voltage
(VAC)
Bypass Cabinet
Max Input
Current
Cabinet
Input OCP
CB Size (A)
O/P Voltage
(VAC)
Nominal O/P
Current Rating (A)
Output
OCP CB Size (A)
15
D, M
240
47
60
208
42
60
15
E, N
480
24
30
480
18
30
15
E, N
600
19
30
600
14
20
15
E, N
220
53
70
220
39
50
10
A, J
208
35
50
208
28
40
10
B, K
480
16
20
208
28
40
10
B, K
600
12
15
208
28
40
10
B, K
220
34
50
208
28
40
10
C, L
480
16
20
480
12
15
10
C, L
600
13
20
600
10
15
10
C, L
220
35
50
220
26
40
10
D, M
480
16
20
208
28
40
10
D, M
600
13
15
208
28
40
10
D, M
208
36
50
208
28
40
10
D, M
220
34
50
208
28
40
10
D, M
240
32
40
208
28
40
10
E, N
480
16
20
480
12
15
10
E, N
600
13
20
600
10
15
10
E, N
220
35
50
220
26
40
Table 30
Maintenance bypass cabinet electrical data (dual input)
System
Rectifier
Rectifier
Bypass
Bypass
I/P Voltage Max Input Input OCP Max Input Input OCP O/P Voltage
Nominal O/P
Output OCP
kVA Type
(VAC)
Current CB Size (A) Current CB Size (A)
(VAC)
Current Rating (A) CB Size (A)
30
F, P
480
42
50
47
50
30
F, P
600
33
40
37
40
208
83
125
30
F, P
208
95
125
107
125
208
83
125
30
F, P
220
90
125
101
125
208
83
125
30
F, P
240
83
100
93
100
208
83
125
20
F, P
480
28
40
31
40
208
55
70
20
F, P
600
22
30
25
30
208
56
70
20
F, P
208
64
80
71.5
80
208
56
70
20
F, P
220
61
80
68
70
208
56
70
20
F, P
240
56
70
62
70
208
56
70
61
208
83
125
Specifications and Technical Data
Table 30
Maintenance bypass cabinet electrical data (dual input)
System
Rectifier
Rectifier
Bypass
Bypass
I/P Voltage Max Input Input OCP Max Input Input OCP O/P Voltage
Nominal O/P
Output OCP
kVA Type
(VAC)
Current CB Size (A) Current CB Size (A)
(VAC)
Current Rating (A) CB Size (A)
15
F, P
480
21
30
24
30
208
42
60
15
F, P
600
17
30
19
20
208
42
60
15
F, P
208
49
60
54
60
208
42
60
15
F, P
220
46
60
51
60
208
42
60
15
F, P
240
42
60
47
50
208
42
60
10
F, P
480
14
20
16
20
208
28
40
10
F, P
600
12
15
13
15
208
28
40
10
F, P
208
33
40
36
40
208
28
40
10
F, P
220
31
40
34
40
208
28
40
10
F, P
240
29
40
32
40
208
28
40
Table 31
System
Size
Multi-module bypass cabinet electrical data
kVA
System
I/P Voltage
(VAC)
System
Max Input
Current
System
Input OCP
CB Size (A)
O/P Voltage
(VAC)
Nominal O/P
Current Rating (A)
Output OCP
CB Size (A)
30
208
104
125
208
83
125
20
208
70
90
208
56
70
15
208
53
70
208
42
60
10
208
35
45
208
28
40
CR1
30
208
107
150A
208
83
125
CR1, DR1
30
220
101
150A
208
83
125
CR1, DR1
30
480
46
70A
208
83
125
CR1, DR1
30
600
37
60A
208
83
125
CR1
20
208
71
100A
208
56
70
CR1, DR1
20
220
68
100A
208
56
70
CR1, DR1
20
480
31
50A
208
56
70
CR1, DR1
20
600
25
40A
208
56
70
Type
A00, BR0
1+1
CR1
15
208
54
80A
208
42
60
CR1, DR1
15
220
51
80A
208
42
60
CR1, DR1
15
480
23
40A
208
42
60
CR1, DR1
15
600
19
30A
208
42
60
CR1
10
208
36
60A
208
28
40
CR1, DR1
10
220
34
50A
208
28
40
CR1, DR1
10
480
16
30A
208
28
40
CR1, DR1
10
600
12
20A
208
28
40
62
Specifications and Technical Data
Table 31
System
Size
Multi-module bypass cabinet electrical data (continued)
Type
A00, BR0
2+0
kVA
System
I/P Voltage
(VAC)
System
Max Input
Current
System
Input OCP
CB Size (A)
O/P Voltage
(VAC)
Nominal O/P
Current Rating (A)
Output OCP
CB Size (A)
30
208
104
125
208
167
225
20
208
70
90
208
111
150
15
208
53
70
208
83
125
10
208
35
45
208
56
70
CR1
30
208
73
100A
208
167
225
CR1, DR1
30
220
69
100A
208
167
225
CR1, DR1
30
480
32
50A
208
167
225
CR1, DR1
30
600
25
40A
208
167
225
CR1
20
208
110
150A
208
111
150
CR1, DR1
20
220
104
150A
208
111
150
CR1, DR1
20
480
48
70A
208
111
150
CR1, DR1
20
600
38
50A
208
111
150
CR1
15
208
146
200A
208
83
125
CR1, DR1
15
220
138
200A
208
83
125
CR1, DR1
15
480
63
80A
208
83
125
CR1, DR1
15
600
51
70A
208
83
125
CR1
10
208
219
300A
208
56
70
CR1, DR1
10
220
207
300A
208
56
70
CR1, DR1
10
480
95
125A
208
56
70
CR1, DR1
10
600
76
100A
208
56
70
30
208
210
300
208
167
225
20
208
140
200
208
111
150
15
208
105
150
208
83
125
10
208
70
100
208
56
70
SR0, W00
63
Specifications and Technical Data
Table 31
System
Size
Multi-module bypass cabinet electrical data (continued)
Type
E00, FR0
2+1
G01, GR1
HR1
TR0, X00
kVA
System
I/P Voltage
(VAC)
System
Max Input
Current
System
Input OCP
CB Size (A)
O/P Voltage
(VAC)
Nominal O/P
Current Rating (A)
Output OCP
CB Size (A)
30
208
104
125
208
167
225
20
208
70
90
208
111
150
15
208
53
70
208
83
125
10
208
35
45
208
56
70
10
208
73
100
208
56
70
10
220
69
100
208
56
70
10
480
32
50
208
56
70
10
600
25
40
208
56
70
15
208
110
150
208
83
125
15
220
104
150
208
83
125
15
480
47
70
208
83
125
15
600
38
50
208
83
125
20
208
146
200
208
111
150
20
220
138
200
208
111
150
20
480
63
100
208
111
150
20
600
51
70
208
111
150
30
208
219
300
208
167
225
30
220
207
300
208
167
225
30
480
95
125
208
167
225
30
600
76
100
208
167
225
10
220
68
100
208
56
70
10
480
31
50
208
56
70
10
600
25
40
208
56
70
15
220
102
150
208
83
125
15
480
47
70
208
83
125
15
600
38
50
208
83
125
20
220
137
200
208
111
150
20
480
63
100
208
111
150
20
600
50
70
208
111
150
30
220
205
300
208
167
225
30
480
94
125
208
167
225
30
600
75
100
208
167
225
30
208
210
300
208
167
225
20
208
140
200
208
111
150
15
208
105
150
208
83
125
10
208
70
100
208
56
70
64
Specifications and Technical Data
Table 31
System
Size
Multi-module bypass cabinet electrical data (continued)
Type
E00, FR0
3+0
G01, GR1
HR1
TR0, X00
kVA
System
I/P Voltage
(VAC)
System
Max Input
Current
System
Input OCP
CB Size (A)
O/P Voltage
(VAC)
Nominal O/P
Current Rating (A)
Output OCP
CB Size (A)
30
208
104
125
208
250
400
20
208
70
90
208
167
225
15
208
53
70
208
125
200
10
208
35
45
208
83
125
10
208
110
150
208
83
125
10
220
104
150
208
83
125
10
480
47
60
208
83
125
10
600
38
50
208
83
125
15
208
164
225
208
125
200
15
220
155
200
208
125
200
15
480
71
90
208
125
200
15
600
57
80
208
125
200
20
208
219
300
208
167
225
20
220
207
300
208
167
225
20
480
95
125
208
167
225
20
600
76
100
208
167
225
30
208
329
500
208
250
400
30
220
311
400
208
250
400
30
480
142
200
208
250
400
30
600
114
150
208
250
400
10
220
102
150
208
83
125
10
480
47
60
208
83
125
10
600
38
50
208
83
125
15
220
154
200
208
125
200
15
480
70
90
208
125
200
15
600
56
80
208
125
200
20
220
205
300
208
167
225
20
480
94
125
208
167
225
20
600
75
100
208
167
225
30
220
307
400
208
250
400
30
480
141
200
208
250
400
30
600
113
150
208
250
400
30
208
315
400
208
250
400
20
208
210
300
208
167
225
15
208
158
200
208
125
200
10
208
105
150
208
83
125
65
Specifications and Technical Data
Table 31
System
Size
Multi-module bypass cabinet electrical data (continued)
Type
J00, KR0
3+1
LR1
MR1
UR0, Y00
kVA
System
I/P Voltage
(VAC)
System
Max Input
Current
System
Input OCP
CB Size (A)
O/P Voltage
(VAC)
Nominal O/P
Current Rating (A)
Output OCP
CB Size (A)
30
208
104
125
208
250
400
20
208
70
90
208
167
225
15
208
53
70
208
125
200
10
208
35
45
208
83
125
10
208
110
150
208
83
125
10
220
104
150
208
83
125
10
480
47
60
208
83
125
10
600
38
50
208
83
125
15
208
164
225
208
125
200
15
220
155
200
208
125
200
15
480
71
90
208
125
200
15
600
57
80
208
125
200
20
208
219
300
208
167
225
20
220
207
300
208
167
225
20
480
95
125
208
167
225
20
600
76
100
208
167
225
30
208
329
500
208
250
400
30
220
311
400
208
250
400
30
480
142
200
208
250
400
30
600
114
150
208
250
400
10
220
102
150
208
83
125
10
480
47
60
208
83
125
10
600
38
50
208
83
125
15
220
154
200
208
125
200
15
480
70
90
208
125
200
15
600
56
80
208
125
200
20
220
205
300
208
167
225
20
480
94
125
208
167
225
20
600
75
100
208
167
225
30
220
307
400
208
250
400
30
480
141
200
208
250
400
30
600
113
150
208
250
400
30
208
315
400
208
250
400
20
208
210
300
208
167
225
15
208
158
200
208
125
200
10
208
105
150
208
83
125
66
Specifications and Technical Data
Table 31
System
Size
Multi-module bypass cabinet electrical data (continued)
Type
J00, KR0
4+0
LR1
MR1
UR0, Y00
kVA
System
I/P Voltage
(VAC)
System
Max Input
Current
System
Input OCP
CB Size (A)
O/P Voltage
(VAC)
Nominal O/P
Current Rating (A)
Output OCP
CB Size (A)
30
208
104
125
208
333
500
20
208
70
90
208
222
300
15
208
53
70
208
167
225
10
208
35
45
208
111
150
10
208
146
175
208
111
150
10
220
138
175
208
111
150
10
480
63
80
208
111
150
10
600
51
70
208
111
150
15
208
219
300
208
167
225
15
220
207
250
208
167
225
15
480
95
125
208
167
225
15
600
76
100
208
167
225
20
208
292
400
208
222
300
20
220
276
400
208
222
300
20
480
127
175
208
222
300
20
600
101
125
208
222
300
30
208
438
600
208
333
500
30
220
414
500
208
333
500
30
480
190
250
208
333
500
30
600
152
200
208
333
500
10
220
137
175
208
111
150
10
480
63
80
208
111
150
10
600
50
60
208
111
150
15
220
205
250
208
167
225
15
480
94
125
208
167
225
15
600
75
90
208
167
225
20
220
273
400
208
222
300
20
480
125
150
208
222
300
20
600
100
125
208
222
300
30
220
410
500
208
333
500
30
480
188
225
208
333
500
30
600
150
200
208
333
500
30
208
421
500
208
333
500
20
208
280
400
208
222
300
15
208
210
250
208
167
225
10
208
140
175
208
111
150
67
Specifications and Technical Data
Table 32
Maintenance bypass cabinet lug sizes
Input
Maximum Recommended Lug
Unit
Rating
Nominal System
Input Voltage
Bolt Size
Lug T&B
One Hole 54000
Lug T&B
One Hole REDDY
30
600
6M (1/4”)
54105
62204
30
480
6M (1/4”)
54106
62204
30
240
6M (1/4”)
54152
62205
30
220
6M (1/4”)
54152
62205
30
208
6M (1/4”)
54152
62205
20
600
6M (1/4”)
NA
62204
20
480
6M (1/4”)
54130
62204
20
240
6M (1/4”)
54107
62204
20
220
6M (1/4”)
54107
62204
20
208
6M (1/4”)
54107
62204
15
600
6M (1/4”)
NA
62204
15
480
6M (1/4”)
NA
62204
15
240
6M (1/4”)
54106
62204
15
220
6M (1/4”)
54106
62204
15
208
6M (1/4”)
54106
62204
10
600
6M (1/4”)
NA
62204
10
480
6M (1/4”)
NA
62204
10
240
6M (1/4”)
54130
62204
10
220
6M (1/4”)
54130
62204
10
208
6M (1/4”)
54130
62204
68
Specifications and Technical Data
Table 32
Maintenance bypass cabinet lug sizes (continued)
Output
Maximum Recommended Lug
Unit
Rating
Nominal System
Output Voltage
Bolt Size
Lug T&B
One Hole 54000
Lug T&B
One Hole REDDY
30
600
6M (1/4”)
54130
62204
30
480
6M (1/4”)
54106
62204
30
240
6M (1/4”)
54108
62205
30
220
6M (1/4”)
54108
62205
30
208
6M (1/4”)
54108
62205
20
600
6M (1/4”)
NA
62204
20
480
6M (1/4”)
54130
62204
20
240
6M (1/4”)
54106
62204
20
220
6M (1/4”)
54106
62204
20
208
6M (1/4”)
54106
62204
15
600
6M (1/4”)
NA
62204
15
480
6M (1/4”)
NA
62204
15
240
6M (1/4”)
54106
62204
15
220
6M (1/4”)
54106
62204
15
208
6M (1/4”)
54106
62204
10
600
6M (1/4”)
NA
62204
10
480
6M (1/4”)
NA
62204
10
240
6M (1/4”)
54130
62204
10
220
6M (1/4”)
54130
62204
10
208
6M (1/4”)
54130
62204
Table 33
Battery cabinet physical characteristics
Battery Cabinet
Type
Dimensions
WxDxH in. (mm)
Net Weight Without
Batteries, lb. (kg)
Short Narrow
27.2x31.4x63
(690x825x1600)
551
(250)
Short Wide
58.5x31.4x63
(1488x825x1600)
889
(400)
Table 34
UPS
Rating
Maintenance Bypass Cabinet weights
Maintenance Bypass Cabinet Style, lb. (kg)
A
B
C
D
E
F
J
K
L
M
N
P
10kVA
408
(185)
545
(247)
675
(306)
602
(273)
732
(332)
630
(286)
403
(183)
540
(245)
670
(304)
597
(271)
728
(330)
630
(286)
15kVA
408
(185)
567
(257)
728
(330)
659
(299)
822
(373)
680
(308)
403
(183)
562
(255)
723
(328)
655
(297)
818
(371)
680
(308)
20kVA
408
(185)
646
(293)
842
(382)
739
(335)
935
(424)
750
(340)
403
(183)
642
(291)
838
(380)
734
(333)
930
(422)
750
(340)
30kVA
408
(185)
694
(315)
893
(405)
807
(366)
1027
(466)
840
(381)
403
(183)
690
(313)
888
(403)
802
(364)
1023
(464)
840
(381)
69
Specifications and Technical Data
Table 35
Maintenance bypass cabinet dimensions
Unit
Width
Depth
inch
27.2
31.4
63
mm
690
825
1600
Table 36
Height
Multi-module paralleling cabinet dimensions
1+1 Cabinet Type
Width
Depth
Height
1+N Narrow
27.2
31.4
63
Types A00, BR0, CR1, DR1
690
825
1600
Width
Depth
Height
1+N Narrow
27.2
31.4
63
Types A00, E00, J00
690
825
1600
1+N Cabinet Type
8.2
1+N Wide
58.5
31.4
63
All other types
1488x
825x
1600
Cable Lengths: Floor to Connection Point Inside UPS
To help calculate the total cable length required, refer to Table 37 for the distance from the floor to
selected connection points inside the NX. Determine the cable length required to reach the NX, then
add the appropriate length from the table and adequate slack for repair and maintenance.
Table 37
Distance to connection points on the NX UPS
Distance
Connection Point on UPS
Bypass AC input supply
From
Floor
in. (mm)
From
Top of Unit
in. (mm)
30 (750)
30 (750)
UPS output AC
30 (750)
30 (750)
Neutral busbars—Input and Output
11 (280)
55 (1397
Battery power
16 (400)
58 (1474)
Auxiliary cables: Monitor board (U2)
60 (1500)
20 (508)
Communications
55 (1400)
25 (635)
8 (197)
56 (14227)
70(1780)
20(508)
Ground
Parallel Board
70
Specifications and Technical Data
NOTES
71
Specifications and Technical Data
72
Ensuring The High Availability
0f Mission-Critical Data And Applications.
Emerson Network Power, the global leader in enabling business-critical
continuity, ensures network resiliency and adaptability through
a family of technologies—including Liebert power and cooling
technologies—that protect and support business-critical systems.
Liebert solutions employ an adaptive architecture that responds
to changes in criticality, density and capacity. Enterprises benefit
from greater IT system availability, operational flexibility and
reduced capital equipment and operating costs.
Technical Support / Service
Web Site
www.liebert.com
Monitoring
800-222-5877
monitoring@emersonnetworkpower.com
Outside the US: 614-841-6755
Single-Phase UPS
800-222-5877
upstech@emersonnetworkpower.com
Outside the US: 614-841-6755
Three-Phase UPS
800-543-2378
powertech@emersonnetworkpower.com
Environmental Systems
800-543-2778
Outside the United States
614-888-0246
Locations
United States
1050 Dearborn Drive
P.O. Box 29186
Columbus, OH 43229
Europe
Via Leonardo Da Vinci 8
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Fax: +39 049 5841 257
Asia
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Hong Kong
852 2572220
Fax: 852 28029250
While every precaution has been taken to ensure the accuracy
and completeness of this literature, Liebert Corporation assumes no
responsibility and disclaims all liability for damages resulting from use of
this information or for any errors or omissions.
© 2006 Liebert Corporation
All rights reserved throughout the world. Specifications subject to change
without notice.
® Liebert and the Liebert logo are registered trademarks of Liebert
Corporation. All names referred to are trademarks
or registered trademarks of their respective owners.
SL-25215_REV6_11-06
Emerson Network Power.
The global leader in enabling Business-Critical Continuity™.
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©2006 Emerson Electric Co.
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