Liebert NXL 250-400 kVA, 60Hz, 3-Phase, Single Module and Multi-Module Units, Installation Manual (R09/15) (SL

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Liebert NXL 250-400 kVA, 60Hz, 3-Phase, Single Module and Multi-Module Units, Installation Manual (R09/15) (SL | Manualzz

Liebert

®

NXL

UPS

Installation Manual – 250-400kVA, 60Hz, Three-Phase, Single-Module and Multi-Module Units

C

ONTACTING

E

MERSON

N

ETWORK

P

OWER® FOR

S

UPPORT

To contact Emerson Network Power Liebert

®

Services for information or repair service in the United

States, call 1-800-LIEBERT (1-800-543-2378). Liebert Services offers a complete range of start-up services, repair services, preventive maintenance plans and service contracts.

For repair or maintenance service outside the 48 contiguous United States, contact Liebert Services, if available in your area. For areas not covered by Emerson Network Power Liebert Services, the authorized distributor is responsible for providing qualified, factory-authorized service.

For LGS to assist you promptly, please have the following information available:

Part numbers: _________________________________________________________________

Serial numbers:________________________________________________________________

Rating: _______________________________________________________________________

Date purchased: _______________________________________________________________

Date installed:_________________________________________________________________

Location: ______________________________________________________________________

Input voltage/frequency:________________________________________________________

Output voltage/frequency: ______________________________________________________

Battery reserve time:___________________________________________________________

Product Warranty Registration

To register for warranty protection, visit the Service and Support section of our Web site at:

www.liebert.com

Click on Product Registration and fill out the form.

TABLE OF CONTENTS

C

ONTACTING

E

MERSON

N

ETWORK

P

OWER® FOR

S

UPPORT

. . . . . . . . . . . . . . I

NSIDE

F

RONT

C

OVER

I

MPORTANT

S

AFETY

I

NSTRUCTIONS

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

1.0

S

INGLE

-M

ODULE AND

M

ULTI

-M

ODULE

M

ECHANICAL

I

NSTALLATION

. . . . . . . . . . . . . . . . . . .3

1.1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2

Preliminary Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3

Environmental Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.3.1

UPS Room . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.3.2

Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.4

Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.4.1

Moving the Cabinets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.4.2

Clearances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.4.3

Raised Floor Installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.4.4

Kick Plate Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.4.5

Special Considerations for 1+N Parallel Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.5

System Composition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.6

Cable Entry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.0

UPS E

LECTRICAL

I

NSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

2.1

External Protective Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2

Power Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.2.1

Sizing the Input Breaker Feeding a Liebert NXL UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.2.2

Power Cable Connection Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.3

Control Cable and Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.3.1

Dry Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.3.2

Multi-Module Communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.4

Digital LBS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.5

Configuring Neutral and Ground Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.5.1

Four-Wire Input connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.5.2

Three-Wire Input Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.5.3

Preferred Grounding Configuration, Battery Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.5.4

Multi-Module Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.5.5

High Resistance Ground Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.6

Grounding Diagrams, Single- and Multi-Module Systems . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.0

O

PTIONAL

E

QUIPMENT

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

3.1

Single-Module System Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.1.1

Matching Maintenance Bypass Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.1.2

Battery Temperature Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.1.3

Load Bus Synch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.1.4

Remote Alarm Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.2

Communication and Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.2.1

Alber Monitoring System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.2.2

Programmable Relay Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.2.3

Input Contact Isolator Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

i

4.0

I

NSTALLATION

D

RAWINGS

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

5.0

S

PECIFICATIONS

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

A

PPENDIX

A - C

ABINET

I

NTERCONNECTION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A50

FIGURES

Figure 1 Cabinet arrangement—Liebert NXL single-module, battery cabinets, maintenance bypass cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 2 Cabinet arrangement—Liebert NXL 400kVA, 575-600V multi-module and battery cabinets . . . 7

Figure 3 Cabinet grounding plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 4 Kick plate and filter locations, typical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 5 External Interface Board connections layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 6 Inter-Module Communication Board wiring diagram—Multi-modules . . . . . . . . . . . . . . . . . . . . 15

Figure 7 Inter-Module Communication Board wiring diagram—Digital LBS . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 8 Grounding diagram, three-wire single-module system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 9 Grounding diagram, four-wire single-module system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 10 Grounding diagram, three-wire multi-module system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 11 Grounding diagram, four-wire multi-module system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 12 Control wiring, Programmable Relay Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 13 Programmable relay board dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 14 Input contact isolator dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 15 Optional Input Contact Isolator Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 16 Outline drawing, 250kVA, 480V Liebert NXL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Figure 17 Outline drawing, 250kVA, 575/600V; and 300kVA, 480/575/600V Liebert NXL . . . . . . . . . . . . . 26

Figure 18 Outline drawing, 400kVA, 480V Liebert NXL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Figure 19 Outline drawing, 400kVA, 575V/600V Liebert NXL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Figure 20 Outline drawing, 400kVA, 575V/600V Liebert NXL with DC I/O cabinet . . . . . . . . . . . . . . . . . . 29

Figure 21 Main components, 250kVA, 480V Liebert NXL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Figure 22 Main components, 250kVA, 575/600V, and 300kVA, 480/575/600V Liebert NXL . . . . . . . . . . . . 31

Figure 23 Main components, 400kVA, 480V Liebert NXL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 24 Main components, 400kVA, 575V/600V Liebert NXL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 25 Main components, 400kVA, 575V/600V Liebert NXL with DC I/O cabinet . . . . . . . . . . . . . . . . . 34

Figure 26 Input/output conduit detail drawing, 250-300kVA, all voltages, Liebert NXL . . . . . . . . . . . . . . . 35

Figure 27 Input/output terminal detail, 400kVA, 480V Liebert NXL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Figure 28 Input/output terminal detail, 400kVA, 575V/600V Liebert NXL. . . . . . . . . . . . . . . . . . . . . . . . . . 37

Figure 29 Input/output terminal detail, 400kVA, 575V/600V Liebert NXL with DC I/O cabinet . . . . . . . . 38

Figure 30 Top cable entry routing and installation order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Figure 31 Bottom cable entry routing and installation order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Figure 32 Single-input busbar arrangement—250-400kVA units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Figure 33 Low-voltage cable entry—250-400kVA units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Figure 34 Inverter overload data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Figure 35 Bypass overload data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Figure 36 Cabinet interconnection cabling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Figure 37 Cabinet interconnection cabling (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

ii

TABLES

Table 1

Table 2

Table 3

Table 4

Table 5

Table 6

UPS input dry contacts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

UPS control with battery cabinet or module battery disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . 13

UPS control contacts with global maintenance bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

UPS control contacts to remote status panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Parallel from UPS module Inter-Module Communication Board to other Inter-Module

Communication Board in system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Wire size, length for digital LBS connection of UPS Inter-Module Communication

Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Table 7

Table 8

Programmable Relay Board pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Input Contact Isolator Board pre-assigned values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Table 9 Input Contact Isolator Board control wiring connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Table 10 Liebert NXL UPS specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Table 11 Current ratings—rectifier input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Table 12 Current ratings—bypass input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Table 13 Current ratings—output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Table 14 Current ratings—battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Table 15 Recommended conduit and cable sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Table 16 Recommended lug sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Table 17 Recommended torque values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Table 18 Cabinet interconnection cabling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

iii

iv

Important Safety Instructions

I

MPORTANT

S

AFETY

I

NSTRUCTIONS

SAVE THESE INSTRUCTIONS

This manual contains important instructions that should be followed during installation of your

Liebert NXL UPS.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

Risk of electrical shock. Can cause personal injury or death.

This UPS has several circuits that are energized with high DC as well as AC voltages. Check for voltage with both AC and DC voltmeters before working within the UPS. Check for voltage with both AC and DC voltmeters before making contact.

Only properly trained and qualified personnel wearing appropriate safety headgear, gloves, shoes and glasses should be involved in installing the UPS or preparing the UPS for installation. When performing maintenance with any part of the equipment under power, service personnel and test equipment should be standing on rubber mats.

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 installation and maintenance.

Special safety precautions are required for procedures involving handling, installation and maintenance of the UPS system. Observe all safety precautions in this manual before handling or installing the UPS system. Observe all precautions in the Operation and

Maintenance Manual, SL-25425, before as well as during performance of all maintenance procedures. Observe all DC safety precautions before working on or near the DC system.

!

!

WARNING

Risk of heavy unit falling over. Improper handling can cause equipment damage, injury or death.

Exercise extreme care when handling UPS cabinets to avoid equipment damage or injury to personnel. The UPS module weight ranges from 3965 to 6380 lb. (1768 to 2894kg).

Locate center of gravity symbols and determine unit weight before handling each cabinet. Test lift and balance the cabinets before transporting. Maintain minimum tilt from vertical at all times.

Slots at the base of the modules cabinets are intended for forklift use. Base slots will support the unit only if the forks are completely beneath the unit.

Read all of the following instructions before attempting to move, lift, remove packaging from or preparing unit for installation.

WARNING

Risk of electrical shock and fire. Can cause equipment damage, personal injury or death.

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.

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 potential electric charges may exist at the capacitor banks and at the DC connections.

All wiring must be installed by a properly trained and qualified electrician. All power and control wiring must comply with all applicable national, state and local codes.

One person should never work alone, even if all power is disconnected from the equipment. A second person should be standing by to assist and to summon help in case of an accident.

1 Liebert

®

NXL

Important Safety Instructions

NOTE

Materials sold hereunder cannot be used in the patient vicinity (e.g., use where UL, cUL or

IEC 60601-1 is required). Medical applications such as invasive procedures and electrical life support equipment are subject to additional terms and conditions.

NOTICE

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 communication. Operation of this unit in a residential area may cause harmful interference that the user must correct at his own expense.

Liebert

®

NXL

2

Single-Module and Multi-Module Mechanical Installation

1.0

S

INGLE

-M

ODULE AND

M

ULTI

-M

ODULE

M

ECHANICAL

I

NSTALLATION

1.1

Introduction

This following section describes the requirements that must be taken into account when planning the positioning and cabling of the Liebert NXL uninterruptible power supply and related equipment.

This chapter is a guide to general procedures and practices that should be observed by the installing personnel. The particular conditions of each site will determine the applicability of such procedures.

!

WARNING

Risk of electrical shock. Can cause injury or death.

Special care must be taken when working with the batteries associated with this equipment.

When connected together, the battery terminal voltage will exceed 400VDC and is potentially lethal.

NOTICE

All equipment not referred to in this manual is shipped with details of its own mechanical and electrical installation.

NOTICE

Three-phase input supply required.

The standard Liebert NXL UPS is suitable for connection to three-phase, four-wire (+ Earth)

TN-C, TN-S, IT-G, IT-IG or, three-phase, three-wire plus ground, IT-UG.

If using with IT Power system, a 4-pole disconnect device must be included as part of building installation.

NOTICE

Do not apply electrical power to the UPS equipment before the arrival of the commissioning engineer.

1.2

Preliminary Checks

Before installing the UPS, please carry out the following preliminary checks:

• Visually examine the UPS equipment for transit damage, both internally and externally. Report any damage to the shipper immediately.

• Verify that the correct equipment is being installed. The equipment supplied has an identification tag on the back of the main door reporting: the type, size and main calibration parameters of the

UPS.

• Verify that the UPS room satisfies the environmental conditions stipulated in the equipment specification, paying particular attention to the ambient temperature and air exchange system.

3 Liebert

®

NXL

Single-Module and Multi-Module Mechanical Installation

1.3

Environmental Considerations

1.3.1 UPS Room

The UPS module is intended for indoor installation and should be located in a cool, dry, clean-air environment with adequate ventilation to keep the ambient temperature within the specified

operating range (see Environmental Parameters in Table 10).

The Liebert NXL UPS is cooled with the aid of internal fans. To permit air to enter and exit and prevent overheating or malfunctioning, do not cover the ventilation openings.

NOTE

To ensure proper airflow, the unit must be installed only on a solid surface made of a noncombustible material, such as concrete.

The Liebert NXL UPS is equipped with air filters located behind the front doors. A schedule for inspection of the air filters is required. The period between inspections will depend upon environmental conditions.

When bottom entry is used, the conduit plate must be installed.

NOTE

The UPS is suitable for mounting on concrete or other non-combustible surface only.

1.3.2 Storage

Should the equipment not be installed immediately, it must be stored in a room for protection against

excessive humidity and or heat sources (see Environmental Parameters in Table 10).

1.4

Positioning

The cabinet is structurally designed to handle lifting from the base.

Access to the power terminals, auxiliary terminals blocks and power switches is from the front.

The door can be opened to give access to the power connections bars, auxiliary terminal blocks and power isolators. Front door can be opened at 180° for more flexibility in installations.

NOTE

The UPS must be placed a solid surface. There must be no openings in the surface except those required for conduit landing areas. All provided kick plates must be installed.

1.4.1 Moving the Cabinets

The route to be travelled between the point of arrival and the unit’s position must be planned to make sure that all passages are wide enough for the unit and that floors are capable of supporting its weight (for instance, check that doorways, lifts, ramps, etc. are adequate and that there are no impassable corners or changes in the level of corridors).

Ensure that the UPS weight is within the designated surface weight loading (kg/cm

2

) of any handling

equipment. For weight details, see Table 10.

The UPS can be handled with a forklift or similar equipment. Ensure any lifting equipment used in moving the UPS cabinet has sufficient lifting capacity. When moving the unit by forklift, care must be taken to protect the panels. Do not exceed a 15-degree tilt with the forklift. Bottom structure will support the unit only if the forks are completely beneath the unit.

Handling with straps is not authorized.

Liebert

®

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4

Single-Module and Multi-Module Mechanical Installation

!

WARNING

Risk of heavy unit falling over. Improper handling can cause equipment damage, injury or death.

Because the weight distribution in the cabinet is uneven, use extreme care while handling and transporting. Take extreme care when handling UPS cabinets to avoid equipment damage or injury to personnel.

The UPS module weight ranges from 3965 to 6380 lb. (1768 to 2894kg).

Locate center of gravity symbols and determine unit weight before handling each cabinet. Test lift and balance the cabinets before transporting. Maintain minimum tilt from vertical at all times.

1.4.2 Clearances

The Liebert NXL has no ventilation grilles at either side or at the rear of the UPS. Clearance around the front of the equipment should be sufficient to enable free passage of personnel with the doors fully opened. It is important to leave a distance of 24" (610mm) between the top of the UPS and any overhead obstacles to permit adequate circulation of air coming out of the unit.

1.4.3 Raised Floor Installations

If the equipment is to be located on a raised floor it should be mounted on a pedestal suitably designed to accept the equipment point loading. Refer to the base view to design this pedestal. The top of pedestal must be solid.

NOTE

The UPS must be placed on a solid surface. There must be no openings in the surface except those required for conduit landing areas. All provided kick plates must be installed.

1.4.4 Kick Plate Installation

Kick plates must be installed. If the unit is to be installed in a position that does not permit access to the rear kick plates, then kick plates must be installed before the unit is placed in its final position.

1.4.5 Special Considerations for 1+N Parallel Systems

Consider the grounding configuration of your system before finalizing module placement See 2.5 -

Configuring Neutral and Ground Connections.

Emerson Network Power recommends matching the impedance in the bypass path of paralleled systems as closely as possible.

The impedance mismatch can be minimized by controlling the wiring length of each unit. The design and the layout of the UPS system and associated panels and cabling should be examined closely to ensure that cable lengths and impedances are closely matched. The Liebert 1+N UPS module is supplied with a sharing reactor to minimize the impact of cable impedance mismatch.

The cabling impedance must be carefully controlled to ensure good bypass current sharing.

For Liebert NXL Systems, the cabling impedances must be within 10% from maximum to minimum.

If the cabling impedances need to be greater than 10%, contact your Emerson representative to calculate whether the system will result in an overload condition when operating on bypass.

When bringing the 1+N system online for the first time or after removing one unit, Emerson recommends checking the bypass current mismatch. To check the bypass current mismatch:

1. Place a load on the bypass of each UPS module.

2. View the output current of each unit.

The accuracy of the currents displayed on the UPS module is sufficient for this check. If the mismatch is greater than 10%, the bypass impedances must be balanced or the load must be limited to less than the maximum rating.

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Single-Module and Multi-Module Mechanical Installation

1.5

System Composition

A UPS system can comprise a number of equipment cabinets, depending on the individual system design requirements, e.g. UPS cabinet, battery cabinet, maintenance bypass cabinet. In general, all the cabinets used in a particular installation are of the same height. Refer to the drawings provided in

4.0 - Installation Drawings for the positioning of the cabinets as shown in Figures 1 and 2.

1.6

Cable Entry

Cables can enter the UPS cabinet from bottom or top into the Input/Output (I/O) section of the unit,

see the figures in 4.0 - Installation Drawings.

Figure 1 Cabinet arrangement—Liebert NXL single-module, battery cabinets, maintenance bypass cabinet

Applicable to:

250 - 400 kVA 480V, 250 - 300 kVA

575/600V except without

Maintenance Bypass Cabinet

Liebert

NXL

UPS

The side panels and hangers must be removed before the cabinets can be bolted together.

Liebert

NXL

UPS

Maintenance

Bypass

Cabinet

Note: If a maintenance bypass cabinet is used, it must be installed on the right side of the Liebert NXL UPS

Additional

Battery

Cabinet(s)

Battery

Cabinet

Liebert

NXL

UPS

Maintenance

Bypass

Cabinet

Additional

Battery

Cabinet(s)

Battery

Cabinet

Liebert

NXL

UPS

Liebert

NXL

UPS

Battery

Cabinet

Additional

Battery

Cabinet(s)

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6

Single-Module and Multi-Module Mechanical Installation

Figure 2 Cabinet arrangement—Liebert NXL 400kVA, 575-600V multi-module and battery cabinets

The side panels and hangers must be removed before the cabinets can be bolted together.

DC I/O

Section

Liebert

NXL

UPS

I/O

Bypass

Section

Battery

Cabinet

Battery

Cabinet

Liebert

NXL

UPS

7 Liebert

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UPS Electrical Installation

2.0

UPS E

LECTRICAL

I

NSTALLATION

This chapter provides guidelines for qualified installers who must have knowledge of local wiring practices pertaining to the equipment to be installed.

!

WARNING

Risk of electrical shock. Can cause injury or death.

The UPS contains high DC as well as AC voltages. Check for voltage with both AC and DC voltmeters before working within the UPS.

Only properly trained and qualified personnel wearing appropriate safety headgear, gloves, shoes and glasses should be involved in installing the UPS or preparing the UPS for installation.

2.1

External Protective Devices

For safety, it is necessary to install circuit breakers in the input AC supply and external battery system. Given that every installation has its own characteristics, this section provides guidelines for qualified installation personnel with knowledge of operating practices, regulatory standards and the equipment to be installed.

External overcurrent protection must be provided. See Table 10 - Liebert NXL UPS specifications

for overload capacity.

Dual Input

When wiring the UPS with a separate rectifier and bypass input, each input must be protected

separately. Size the breakers according to the input currents shown in Table 10.

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UPS Electrical Installation

2.2

Power Cables

The UPS requires both power and control cabling. All control cables, whether shielded or not, should be run separate from the power cables in metal conduits or metal ducts which are electrically bonded to the metalwork of the cabinets to which they are connected

The cable design must comply with the voltages and currents in Table 10, follow local wiring

practices and take into consideration the environmental conditions (temperature and physical support media), room temperature and conditions of installation of the cable and system’s overload

capacity (see 5.0 - Specifications).

For cable entry terminal, refer to Figures 26 28 and 29.

!

WARNING

Risk of electrical shock. Can cause injury or death.

Before cabling the UPS, ensure that you are aware of the location and operation of the external isolators that connect the UPS input/bypass supply to the power distribution panel.

Check that these supplies are electrically isolated, and post any necessary warning signs to prevent their inadvertent operation.

NOTICE

For dual input operation ensure that any busbars between the bypass and the rectifier input are removed.

When sizing battery cables, a maximum volt drop of 2VDC is permissible at the current ratings given

in Table 14.

The following are guidelines only and superseded by local regulations and codes of practice where applicable:

• Take special care when determining the size of the neutral cable (grounded conductor), because current circulating on the neutral cable may be greater than nominal current in the case of non-

linear loads. Refer to the values in Table 10.

• The grounding conductor should be sized according to the fault rating, cable lengths, type of protection, etc. The grounding cable connecting the UPS to the main ground system must follow the most direct route possible.

• Consideration should be given to the use of paralleled smaller cables for heavy currents, as this can ease installation considerably.

• AC and DC cables must be run in conduits according to local codes, national codes and standard best practices. This will prevent creation of excess EMI fields.

2.2.1 Sizing the Input Breaker Feeding a Liebert NXL UPS

The rectifier nominal input current value (Table 11) is based on providing enough power to operate

the inverter at full rated load when the input voltage is nominal. The published rectifier maximum input current value is based on the maximum input current limit setting of 125%.

The recommended input breaker ampacity is based on the NEC calculation for a branch circuit with the current limit set at the maximum value. The calculation for an 80% rated breaker is 125% of the nominal current (continuous) plus 100% of the difference between the nominal and the maximum currents (non-continuous). The calculation for a 100% rated breaker is 100% of the nominal current

(continuous) plus 100% of the difference between the nominal and maximum currents

(noncontinuous).

The rectifier input current limit can be adjusted from 25% to 125% of the nominal value. This setting is accessible only to a factory-trained service engineer. The effect of changing this setting is similar to that of changing the setting of the trip unit on a solid-state circuit breaker. With a lower current limit setting, the calculation for the branch circuit will result in a lower value.

The input current limit should not be set less than 105% of the current needed to support the inverter at full load for normal operation. This results in sufficient power to recharge the battery in a reasonable time and to operate over the published input voltage range.

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UPS Electrical Installation

2.2.2 Power Cable Connection Procedure

The rectifier input, bypass, output and battery power cables (all require lug type terminations) are

connected to busbars situated in the I/O section as shown in Figures 26 through 31.

Equipment Ground

The equipment ground busbar is located in the I/O section as shown in Figures 26 through 31. The

grounding conductor must be connected to the ground busbar and bonded to each cabinet in the system.

All cabinets and cabling should be grounded in accordance with local regulations.

!

NOTE

Proper grounding reduces problems in systems caused by electromagnetic interference.

WARNING

Failure to follow adequate grounding procedures can result in electric shock hazard to personnel, or the risk of fire, should a ground fault occur.

All operations described in this section must be performed by properly trained and qualified electricians or technical personnel. If any difficulties are encountered, contact Emerson ®

Network Power Liebert Services. See the back page of this manual for contact information.

The grounding and neutral bonding arrangement must be in accordance with local and national codes of practice.

Once the equipment has been positioned and secured, connect the power cables as described below

(refer to the appropriate cable connection drawing in 4.0 - Installation Drawings):

1. Verify that the UPS equipment is isolated from its external power source and all the UPS power isolators are open. Check that these supplies are electrically isolated and post any necessary warning signs to prevent their inadvertent operation.

2. Open exterior and interior panels on the front of the I/O.

3. Connect the ground and any necessary main bonding jumper to the equipment ground busbar located in the I/O section.

4. Make power connections and tighten the connections to the proper torque according to one of the two procedures below, depending on the type of installation:

Ensure correct phase rotation.

• Top Cable Entry (see Figures 19, 20, 25, 28, 29 and 30)

• Bottom Cable Entry (see Figures 19, 20, 25, 28, 29 and 31)

Top Cable Entry

When making the power connections for top cable entry, the recommended order of pulling and installing cables is to start from the top connections to the bottom connections. The cables

must be routed around the fault braces (see Detail in Figure 30). This is to prevent the cables

from contacting other busbars. The recommended conduit layout is shown in Figure 26.

Bottom Cable Entry

When making the power connections for bottom cable entry, the recommended order of pulling and installing cables is to start from the bottom connections to the top connections. The cables

must be routed around the fault braces (see Detail in Figure 31). This is to prevent the cables

from contacting other busbars. The recommended conduit layout is shown in Figure 26.

!

NOTE

For a single input configuration, linking busbars must be installed between the bypass and the rectifier input.

WARNING

Risk of electrical shock. Can cause injury or death.

If the load equipment will not be ready to accept power on the arrival of the commissioning engineer, ensure that the system output cables are safely isolated at their termination.

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UPS Electrical Installation

!

WARNING

Risk of electrical shock. Can cause injury or death.

When connecting the cables between the battery extremities to the circuit breaker always connect the circuit breaker end of the cable first.

5. For control connection details, see 2.3 - Control Cable and Communication.

NOTE

If fault bracing brackets were removed during installation, they MUST be replaced.

6. Close and secure the interior and exterior doors.

Figure 3 Cabinet grounding plates

Note location of larger cutouts.

Orient ground plate as shown.

A

Mounting

Hardware

(Supplied)

Detail A

Grounding plates are installed at each shipping split.

Figure 4 Kick plate and filter locations, typical

KICKPLATE

G

KICKPLATE

D

FRONT

REAR

KICKPLATE

KICKPLATE

E

F

DETAIL D

INSTALL M6X25 BOLT,

LCKW AND WSHR

(4) PLACES, FRONT SIDE

DETAIL E

INSTALL M6X25 BOLT,

LCKW AND WSHR

(2) PLACES, EACH SIDE

DETAIL G

INSTALL M6X60 BOLT,

LCKW AND WSHR

(2) PLACES, FRONT SIDE

INSTALL M6X25 BOLT,

LCKW AND WSHR

(4) PLACES, REAR SIDE

NOTE

Kick plates must be installed. If the unit is to be installed in a position that does not permit access to rear kick plates, then kick plates must be installed before the unit is placed in its final position.

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UPS Electrical Installation

2.3

Control Cable and Communication

Based on your site’s specific needs, the UPS may require auxiliary connections to manage the battery system (external battery circuit breaker), communicate with a personal computer or provide alarm signaling to external devices, or for Remote Emergency Power Off (REPO). The External Interface

Board, arranged for this purpose, is next to the option box in the Rectifier section (refer to 4.0 -

Installation Drawings). The contacts are rated for 250VAC @ 2A.

Figure 5 External Interface Board connections layout

MAINT BYP

ENABLE

TB0821

ACT FILT

CNTL

TB035

P66C P99C

EXTERNA L

CAN

TB0823

EPO

STATUS

LBS VO LTAGE

BATT MTR

OP

TB1156

TB0826

P0808

OPT

PS

TB0829 TB1154B

EXTERNA L

CAN

INT BATT

CAN

TB1154A

EXT BATT

CAN

TB0825

REPO

J4

J5

TB0824

REPO

FORM C

P0831

AUX SPARE

TEMP

P0832

P0801

BATT GND

FLT

TB0815

MOB

TB0811

MIB

TB0810

RIB

TB0830

ACT FILT

STATUS

TB0816

ON GEN

TB0813

MBB

TB0812

BIB

TB0820

KEY

STATUS

TB0819

BYP CNTL

TB0817

RECT

CNTL

TB0818

INV

CNTRLN

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UPS Electrical Installation

2.3.1 Dry Contacts

NOTE

If connection to more than one module is required, use a separate contact for each module.

Table 1

Item

Remote EPO

Input Form C

UPS input dry contacts

Terminal

Block

On Generator

Input Form C

TB0824

TB0816

1

2

3

Pin

1

2

3

Connects to

(Description of External Item)

REPO Switch, normally open contact

REPO Switch, common contact

REPO Switch, normally closed contact, set jumper

J5: 1-2 to enable, 2-3 to disable

On Generator switch, closed = On Generator

On Generator switch, common

On Generator switch, closed = Not On Generator

Wire Size/

Max Length

14AWG/

500ft.

(150m).

Table 2

Item

CAN Bus and

24V Power

Supply

UPS control with battery cabinet or module battery disconnect

Terminal

Block

TB1154A

Pin

1

2

3

4

Connects to

(Description of External Item)

Battery Interface Board TB1154-1

Battery Interface Board TB1154-2

Battery Interface Board TB1154-3

Battery Interface Board TB1154-4

Wire Size/

Max Length

18 AWG

1000ft.

(300m).

Table 3 UPS control contacts with global maintenance bypass

Item

Terminal

Block Pin

Connects to

(Description of External Item)

Wire Size/

Max Length

Maintenance

Isolation Breaker

(MIB) Form C

1

Maintenance Bypass

Breaker (MBB) Form C

1

TB0811

TB0813

1 CB aux. contact, closed = CB is closed

2 CB aux. contact, common

3 CB aux. contact, closed = CB is open

1 CB aux. contact, closed = CB is closed

2 CB aux. contact, common

3 CB aux. contact, closed = CB is open

14AWG/500ft.

(150m)

14AWG/500ft.

(150m)

Maintenance Bypass

Enable Form C

1

TB0821

1

2

Maintenance Bypass Cabinet, closed = load not on inverter

Maintenance Bypass Cabinet, common

14AWG/500ft.

(150m)

3

Maintenance Bypass Cabinet, closed = load on inverter

1 REPO Switch, normally open contact

Remote EPO Input

Key Status Input

1

1, 3

TB0825

TB0820

2 REPO Switch, common contact

1 Key status switch, closed = key removed

2 Key status switch, common

3 Key status switch, closed = key inserted

14AWG/500ft.

(150m)

14AWG/500ft.

(150m)

Module Output Breaker

(MOB) Form C

2

TB0815

1 CB aux. contact, closed = CB is closed

2 CB aux. contact, common

14AWG/500ft.

(150m)

3 CB aux. contact, closed = CB is open

1. For 1+N systems with a maintenance Bypass, these Aux contacts must be run to each module from an isolated source.

2. For 1+N systems, these breaker Aux contact go to the UPS that it is associated with.

3. Key Status Input can be either Form-C, N.O. or N.C. contact.

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UPS Electrical Installation

Table 4

Item

UPS control contacts to remote status panel

Terminal

Block Pin

Connects to

(Description of External Item)

Wire Size/

Max Length

CAN Bus and 24V

Power Supply

TB0829

1 Remote Status Panel TB-2

2 Remote Status Panel TB-1

3 Remote Status Panel TB-3

4 Remote Status Panel TB-4

2.3.2 Multi-Module Communication

18 AWG/1000ft.

(300m)

Paralleling cables that connect the module to the system are connected to terminals P3101 and P3103

on the Inter-Module Communication (IMC) board (refer to 4.0 - Installation Drawings).

Table 5 Parallel from UPS module Inter-Module Communication Board to other Inter-Module

Communication Board in system

Terminal Designation

From To Signal Name

Wire Size/

Max Length

Primary Connections

P3101-1 P3101-1 Share CAN +24V

P3101-2

P3101-3

P3101-2

P3101-3

Share CAN common

System CAN +24V

P3101-4

P3101-5

P3101-6

P3101-7

P3101-4

P3101-5

P3101-6

P3101-7

System CAN common

SER synch CAN+24V

SER synch CAN common

Ground - Drain Wire

P3101-14

P3101-8

P3101-9

P3101-10

P3101-14 Ground

P3101-8 PWM synch CAN +24V

P3101-9 PWM synch CAN common

P3101-10 MMS synch CAN +24V

P3101-11 P3101-11 MMS synch CAN common

Redundant Connections

P3103-1

P3103-2

P3103-1

P3103-2

Redundant share CAN +24V

Redundant share CAN common

1000ft.

(300m)

P3103-3

P3103-4

P3103-5

P3103-6

P3103-7

P3103-14

P3103-8

P3103-9

P3103-3

P3103-4

P3103-5

P3103-6

P3103-7

P3103-14

P3103-8

P3103-9

Redundant system CAN +24V

Redundant system CAN common

Redundant SER synch CAN +24V

Redundant SER synch CAN common

Ground - Drain Wire

Ground

Redundant PWM synch CAN +24V

Redundant PWM synch CAN common

1000ft.

(300m)

P3103-10 P3103-10 Redundant MMS synch CAN +24V

P3103-11 P3103-11 Redundant MMS synch CAN common

1. Belden 810x or Belden 89901 cables are the only approved cables.

2. Belden 89901 cable can be used for underground installations.

3. If using multiple parallel cables for each run, all cables must be run in the same conduit.

4. Each cable group should be run in a separate grounded conduit to ensure redundancy.

5. The maximum lengths must include all the parallel cables from the first module to the last module. The primary and redundant cable lengths can be counted separately.

6. The ground pins on the Inter-Module Communication Board (Pins 7 and 14) are connected together on the board. If using cable with only one (1) drain wire, then connect the ground (drain wire) to Pin 7.

7. Care must be taken to prevent the drain wire from touching any other component in the module.

8. Attach control wires to the side of the control door where the Inter-Module Board (IMC) is attached. Do not run wires across the IMC board.

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Figure 6 Inter-Module Communication Board wiring diagram—Multi-modules

UPS Electrical Installation

IMC

02-806730-xx

P3103

P3101

UPS 1

IMC

02-806730-xx

P3103

P3101

UPS 2

IMC

02-806730-xx

P3103

P3101

UPS 3

2.4

Digital LBS

The Load Bus Sync interface enables independent UPS units to remain in sync when operating on battery or when supplied by unsynchronized input sources.

Digital LBS cables that connect the module to the system are connected to terminals P3108 and

P3109 on the Inter-Module Communication (IMC) board. See Figure 7

.

Table 6 Wire size, length for digital LBS connection of UPS Inter-Module Communication

Boards

Terminal Designation

From To Signal Name

Wire Size/

Max Length

Digital LBS from UPS inter-module communication board to other UPS inter-module communication board

P3108-1

P3108-2

P3108-1

P3108-2

LBS Synch CANH

LBS Synch CANL

3000ft

(900m)

P3108-3 P3108-3 Ground - Drain Wire

Redundant Digital LBS from UPS Inter-Module Communication Board to Other UPS

Inter-Module Communication Board

P3109-1

P3109-2

P3109-1

P3109-2

Redundant LBS Synch CANH

Redundant LBS Synch CANL

3000ft

(900m)

P3109-3 P3109-3 Ground - Drain Wire

1. Belden 810x or Belden 89901 cables are the only approved cables.

2. Each cable group should be run in a separate grounded conduit to ensure redundancy.

3. The maximum lengths must include all the LBS cables from the first module to the last module.

4. The primary and redundant cable lengths can be counted separately.

5. Belden 89901 cable can be used for underground installations.

6. Attach the control wire to the side of the control door where the Inter-Module Board (IMC) is attached.

Do not run wires across the IMC board.

Figure 7 Inter-Module Communication Board wiring diagram—Digital LBS

IMC

02-806730-xx

P3108

P3109

UPS 1

IMC

02-806730-xx

P3108

P3109

UPS 2

IMC

02-806730-xx

P3108

P3109

UPS 3

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UPS Electrical Installation

2.5

Configuring Neutral and Ground Connections

Improper grounding is the largest single cause of UPS installation and startup problems. Grounding techniques vary significantly from site to site, depending on several factors.

Proper grounding should be based on NEC Section 250, but safe and proper equipment operation requires further enhancements. The following pages detail recommendations for grounding various system configurations to ensure optimal UPS system performance.

!

CAUTION

The UPS ground lug must be solidly connected to the service entrance ground by an appropriately sized wire conductor per NEC Article 250. Each conduit or raceway containing phase conductors must also contain a ground wire, both for UPS input and output, which are solidly connected to the ground terminal at each termination point. Conduit-based grounding systems tend to degrade over time. Therefore, using conduit as a grounding conductor for UPS applications may degrade UPS performance and cause improper UPS operation.

2.5.1 Four-Wire Input connections

The UPS module main input and bypass input are connected to a grounded service. In this configuration, the UPS module is not considered a separately derived source. The UPS module output neutral is solidly connected to the building service neutral, which is bonded to the grounding conductor at the service entrance equipment.

Advantages of this configuration include:

• A measure of common-mode noise attenuation, since the isolation (common-mode rejection) occurs as close to the load as practical (i.e., at the PDU).

• The UPS module can be located remotely from the PDU without compromising common-mode noise performance.

• By using UPS modules with 480VAC input and output and creating 208VAC at the PDU, smaller and less costly power feeders can be used and less voltage drop (as a percent of nominal) occurs.

2.5.2 Three-Wire Input Connections

This configuration must NOT be used when single-phase loads are directly connected to the UPS.

The UPS output transformer is considered a separately derived source. The UPS module neutral is bonded to the UPS ground, which is connected to a local grounding electrode in accordance with

NEC 250-26. Please note that this configuration represents a price/performance trade-off. Whenever the UPS module transfers to or from bypass, two AC sources (input and bypass) are briefly connected together and circulating current must flow. In this configuration, the current flows through the ground path, possibly tripping ground fault interrupters (GFIs) and distorting the bypass waveform reference. Proper adjustment of ground fault interrupters is necessary to avoid unwanted tripping.

The time delay should be set to at least 0.2 seconds to prevent tripping when the UPS performs a transfer or retransfer operation.

NOTICE

Risk of improperly set ground fault interrupters. Can cause equipment damage.

Failure to set the ground fault interrupters properly could cause loss of power to the critical load.

2.5.3 Preferred Grounding Configuration, Battery Systems

Open-rack battery systems, depending on local code requirements and customer preference, are normally:

• Floating (ungrounded)

OR

• Center-tapped and floating

Battery cabinet systems must be connected as floating (ungrounded) systems.

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UPS Electrical Installation

Center-tapped or grounded battery systems are not possible with battery cabinet systems.

Whether the battery system is open-rack or cabinet, the metal rack parts or cabinet must be grounded to the UPS module ground bus.

2.5.4 Multi-Module Systems

For both N+1 and 1+N systems, the neutrals of all UPS modules in the system must be connected together inside the switchgear or parallel cabinet. The neutral conductors must be rated for 20% of phase conductor current minimum. Site and load conditions will determine if larger neutrals are required.

For Multi-Module systems using a 3-wire bypass, the Neutral-Ground bond must be made at the common neutral connection point in the switchgear or parallel cabinet.

2.5.5 High Resistance Ground Systems

The Liebert NXL is compatible with High Resistance Ground Systems. See your local Emerson representative for details.

2.6

Grounding Diagrams, Single- and Multi-Module Systems

Figure 8 Grounding diagram, three-wire single-module system

UPS

Source

BPSS

N

G

N

G

Figure 9 Grounding diagram, four-wire single-module system

Source

UPS

BPSS

N

G

N

G

17 Liebert

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NXL

Figure 10 Grounding diagram, three-wire multi-module system

UPS #1

Source

N

G

N

G

UPS #2

N

G

UPS #3

Grounding for 1+N systems is wired exactly the same.

N

G

UPS Electrical Installation

Switchgear

N

G

Liebert

®

NXL

18

Figure 11 Grounding diagram, four-wire multi-module system

UPS #1

BPSS

Source

N

G

UPS #2

BPSS

N

G

N

G

UPS #3

BPSS

N

G

UPS Electrical Installation

Switchgear

N

G

19 Liebert

®

NXL

Optional Equipment

3.0

O

PTIONAL

E

QUIPMENT

3.1

Single-Module System Options

3.1.1 Matching Maintenance Bypass Cabinet

A matching Liebert NXL Maintenance Bypass cabinet is available. See Maintenance Bypass Cabinet

Installation Manual (SL-24532) for more details.

3.1.2 Battery Temperature Sensor

The optional external battery temperature sensor kit, supplied separately from the battery circuit breaker, contains one probe and one temperature transport board.

3.1.3 Load Bus Synch

An optional Load Bus Synch (LBS) system can be used to synchronize two Liebert NXL UPSs or an

Liebert NXL UPS to a Liebert Series 610 UPS.

3.1.4 Remote Alarm Panel

The remote alarm panel has LED alarm lights. An audible alarm sounds upon any alarm condition.

The surface- or flush-mounted NEMA 1 enclosed panel indicates: Load on UPS, Load on Bypass,

Battery Discharging, Low Battery Warning, Overload Warning, Ambient Overtemp Warning, UPS

Alarm Condition and New Alarm Condition (for a second UPS alarm condition).

3.2

Communication and Monitoring

• Liebert IntelliSlot

Unity Card

• Alber Battery Monitoring System

• Programmable Relay Board

• Input Contact Isolator Board

3.2.1 Alber Monitoring System

The matching Liebert NXL Battery Cabinet allows installing an optional Alber Battery monitoring system in the cabinet. The Alber Battery Monitoring by Liebert continuously checks all critical battery parameters, such as cell voltage, overall string voltage, current and temperature. Automatic periodic tests of internal resistance of each battery will verify the battery’s operating integrity.

Additional capabilities include automatic internal DC resistance tests and trend analysis providing the ability to analyze performance and aid in troubleshooting.

Liebert

®

NXL

20

Optional Equipment

3.2.2 Programmable Relay Board

The Programmable Relay Board (PRB) provides a means to trigger an external device when an event occurs in the Liebert NXL. Each PRB has eight channels. Each channel has Form-C dry contacts rated at 1A @ 30VDC or 125VAC @ 0.45A.

Any alarm/event can be programmed to any channel or channels. Up to four (4) events can be programmed to a relay. If multiple events are grouped to one relay, group the events logically to simplify troubleshooting when an event is triggered. The same alarm/event can be programmed to more than one channel. Up to two Programmable Relay Boards can be installed in the Liebert NXL for a total of 16 channels. Programming is performed through the HMI touchscreen display.

NOTE

Up to two (2) PRB’s can be installed in the Liebert NXL.

Figure 12 Control wiring, Programmable Relay Board

1 2 3 4 5 6 7 8 9 10 11 12 1314 1516

J71

1 2 3 4 5 6 7 8 9 10 11 121314 15 16

J72

1 2 3 1 2 3 4 5 6 7 8 9 10 111213141516

J74

J73

1. Customer control wiring connection points are terminals 1 through 15. (Pin 16 not used on J71, J72, and

J73.)

2. Programmable Relay Board option includes eight signal channels with two Form-C dry contacts per

channel (see Table 7).

3. All control wiring (by others) must be run separate from power wiring. Control wiring runs should not be combined in the same conduit.

4. Contact ratings: 1A @ 30VDC or 125VAC @ 0.45A

5. Maximum cable length 500 ft. (152m) with #16AWG and flexible stranded cable.

6. All wiring must be in accordance with national and local electrical codes.

Table 7 Programmable Relay Board pinout

Terminal

Block Channel Pin No.

Common

CH1

A

B

1-3

4-6

J71 A 7-9

CH2

B

A

10-12

13-15

CH3

B

A

1-3

4-6

J72

CH4

B

A

7-9

10-12

TB3

CH5

CH6

CH7

B

A

B

A

B

A

13-15

1-3

4-6

7-9

10-12

13-15

J74

CH8

B 1-3

Note: Pin 16 not used on J71, J72, and J73.

10

13

1

4

7

10

13

1

4

7

10

13

1

1

4

7

Normally

Closed

5

8

11

14

8

11

14

2

2

11

14

2

5

2

5

8

Normally

Open

6

9

12

15

9

12

15

3

3

12

15

3

6

3

6

9

21 Liebert

®

NXL

Optional Equipment

Configuring the Programmable Relay Board Settings

1. Press Internal Option Settings from the Config menu.

2. Press which Programmable Relay Board will be configured. The Programmable Relay Board dialog box is displayed.

3. Press the Relay channel

4. Press up to four (4) events. Selected events will show up under Relay 1 Assignment.

NOTE

To deselect an event, click on the event.

5. Repeat Steps 3 and 4 for each relay.

6. Press SAVE to keep the settings.

Figure 13 Programmable relay board dialog box

• Assignment—0 to 4 event (default: 0)

• Delay, sec—0 to 99.9 (default: 0)

3.2.3 Input Contact Isolator Board

The Input Contact Isolator Board (ICI) provides a Liebert NXL module interface for up to eight external user alarm or message inputs to be routed through the NXL’s alarm network. The eight contacts are normally open dry contacts. When a contact closes, an event is triggered.

NOTE

Up to two (2) ICI’s can be installed in a Liebert NXL.

The Input Contact Isolator options are configured through the Input Contact Isolator dialog box, which is accessed from the Internal Option Settings under the Config dialog box on the HMI touchscreen display. The Input Contact Isolator dialog box contains eight choices to match the eight channel input board. You can label each button to identify the event associated with the contact.

When the dialog box is accessed, each button flashes to display the Input Contact Isolator number and the user entered label. This label also appears in the Display Panel when an event related to an

Input Isolator Connector is triggered.

Liebert

®

NXL

22

Optional Equipment

The Input Contact Isolator dialog box allows you to:

• Label the input contact assignments for your setup.

• Set the delay for an external event triggering an alarm.

• Review the isolator contact assignments, once the labels are entered.

The delay allows setting the number of seconds that a condition must exist before it will trigger an alarm. To configure the Input Contact Isolator relays:

1. Press Internal Option Settings from the Config menu.

2. Press which Input Contact Isolator is to be configured. The Input Contact Isolator dialog box is displayed.

Figure 14 Input contact isolator dialog box

• Assignment—Custom, Pre-assigned (default: “Input Contact” XY)

• Delay, sec—0 to 99.9 (default: 0)

• Message—Custom: 0-19 characters

3. To assign labels for each channel:

a. Press Pre-assigned for default labels on Channels 1-6 (See Table 8)

b. For Custom labels

1. Press Custom to unique labels.

2. Click on Input Contact XX button. A keyboard is displayed to allow naming alarms.

3. Enter the name of the alarm set for that input. For example, a fan problem could be indicated by naming the button FAN.

4. Press OK on the keyboard to keep your label.

4. Press DELAY.

a. A keypad is displayed prompting you for a delay time, in seconds, for a condition to exist before the alarm is triggered.

b. Enter the delay value. The range for the values are from 0 (zero) to 99.9 seconds.

c. Press OK on the keypad to keep your setting. The value you entered is displayed in the field adjacent to the corresponding input contact.

5. Repeat Steps 3 and 4 for each input contact.

23 Liebert

®

NXL

Optional Equipment

6. Press SAVE after you have configured all input contacts.

Be sure to press Save even if you have accessed this dialog only to change a setting.

7. This information is not saved if control power is removed.

Table 8 Input Contact Isolator Board pre-assigned values

Channel

Number

6

7

4

5

8

1

2

3

ICI #1

Pre-Assigned Label

ICI #2

Pre-Assigned Label

Reduced Rect ILimit

Reduced Batt ILimit

Stop Battery Charge

Stop Battery Charge

Stop Battery Charge

Stop Battery Charge

Inhibit Rect Restrt

Inhibit Byp Restrt

Inhibit Inv Restrt Stop Battery Charge

Input Trap Filter Disconnect Inhibit IP Standby

Suspend ECO Mode

Stop Battery Charge

Stop Battery Charge

Figure 15 Optional Input Contact Isolator Board

No Customer Connection

Table 9

1 2 3 4 5 6 7 8 9 10 11 1213 14 1516

J51

1. Customer control wiring connection points are terminals 1 through 16 (see

Table 9).

2. Customer provided normally open dry contacts for user alarm messages.

3. All control wiring (by others) must be run separate from power wiring.

Control wiring runs should not be combined in the same conduit.

4. Signal voltage: 100mA @ 12VDC.

5. Maximum cable length 500 ft. (152m) with #16AWG and flexible stranded cable.

6. All wiring must be in accordance with national and local electrical codes.

Input Contact Isolator Board control wiring connections

Input Contact

1

2

3

4

5

6

7

8

Pin No.

13

14

15

16

9

10

11

12

7

8

5

6

3

4

1

2

Liebert

®

NXL

24

Installation Drawings

4.0

I

NSTALLATION

D

RAWINGS

Figure 16 Outline drawing, 250kVA, 480V Liebert NXL

57.5"

(1460mm)

64.2"

(1630mm)

TOP VIEW

(Doors Open)

71.8" (1824mm)

Cable Entry

Conduit Plte

See Detail A

2.2 (57mm)

Outside

Panel

15"

(380mm)

.9" (23mm)

Outside

Panel

33.5" (850mm)

21.4"

(544mm)

Power Cable

Conduit Plate

76.8"

6.9" (175mm)

CONDUIT

DETAIL A

Control Cable

Conduit Plate

12.1"

(307mm)

(1950mm)

FRONT

RIGHT SIDE

11.4"

(290mm)

1.7" (43mm)

Outside Frame

2.5" (64mm)

To Outside

FRONT

Control Cable

Conduit Plate

Cable Entry

Conduit Plate

See Detail B

10.4"

(264mm)

Power Cable

Conduit Plate

BOTTOM

Notes

1. All dimensions are in inches (mm).

7.3"

(185mm)

11.9"

(302mm)

2. 24" minimum clearance above unit required for air exhaust.

3. Keep cabinet within 15 degrees of vertical while handling.

4. Top and bottom cable entry available through removable conduit plates.

Remove, punch to suit conduit size and replace.

5. Unit bottom is structurally adequate for forklift handling.

6. Control wiring and power wiring must be run in separate conduits.

7. All wiring is to be in accordance with national and local electrical codes

8. Width dimension is with side panels. Subtract 1.4" (35mm) for dimensions

with both side panels removed.

9. Depth dimension includes the front door and rear panel.

10. Refer to technical information drawing for 250kVA/225kW UPS.

CONDUIT

DETAIL B

U40-2C-1001

Rev. 6

7.1" (180mm)

.2"

(5mm)

21.9

(556mm)

2.6 (66mm)

Outside Frame

25 Liebert

®

NXL

Figure 17 Outline drawing, 250kVA, 575/600V; and 300kVA, 480/575/600V Liebert NXL

Installation Drawings

63.8"

(1620mm)

TOP VIEW

(Doors Open)

78.5" (1994mm)

Cable Entry

Conduit Plate

See Detail A

33.5"

(850mm)

2.2" (57mm)

Outside Panel 15"

(380mm)

.9" (23mm)

Outside

Panel

21.4"

(544mm)

Power Cable

Conduit Plate

6.9" (175mm)

76.8"

(1950mm)

Control Cable

Conduit Plate

CONDUIT

DETAIL A

12.1

(307mm)

FRONT

FRONT

RIGHT SIDE

11.4"

(290mm)

Control Cable

Conduit Plate

Cable Entry

Conduit Plate

See Detail B

10.4"

(264mm)

Power Cable

Conduit Plate

BOTTOM VIEW

7.3"

(185mm)

Notes:

1. All dimensions are in inches (mm).

2.24" minimum clearance above unit required for air exhaust.

3. Keep cabinet within 15 degrees of vertical while handling.

4. Top and bottom cable entry available through removable

conduit plates. Remove, punch to suit conduit size and replace.

5. Unit bottom is structurally adequate for forklift handling.

6. Control wiring and power wiring must be run in separate conduits.

7. All wiring is to be in accordance with national and local electrical codes.

8. Width dimension is with side panels. Subtract 1.4" (35mm) for

dimensions with both side panels removed.

9. Depth dimension includes the front door and rear panel.

10. Refer to technical information drawing for 250kVA 575V or 600V UPS.

11.9"

(302mm)

CONDUIT

DETAIL B

U40-2C-1006

Rev. 2

1.7" (43mm)

Outside Frame

2.5" (64mm) to Outside

7.1" (180mm)

.2"

(5mm)

21.9"

(556mm)

2.6" (66mm)

Outside Frame

Liebert

®

NXL

26

Figure 18 Outline drawing, 400kVA, 480V Liebert NXL

2.2" (57mm)

Outside of Panel

69.5"

(1766mm)

Top View (Doors Open)

78.5"

(1994mm)

Installation Drawings

15.0"

(380mm)

.9" (23mm)

Outside Panel

Cable Entry

Conduit Plate

See Detail A

27.3"

(693mm)

Power Cable

Conduit Plate

39.4"

(1000mm)

6.9"

(175mm)

Control Cable

Conduit Plate

CONDUIT

DETAIL A

12.1"

(307mm)

76.8"

(1950mm)

11.4"

(290mm)

1.7" (43mm)

Outside Frame

2.5" (64mm)

To Outside

FRONT VIEW

FRONT

RIGHT SIDE VIEW

Control Cable

Conduit Plate

7.1" (180mm)

.2"

(5mm)

Cable Entry

Conduit Plate

See Detail B

Power Cable

Conduit Plate

11.1"

(281mm)

27.8"

(706mm)

7.3"

(185mm)

11.9"

(302mm)

Note:

BOTTOM VIEW

1. All dimensions are in inches (mm).

2. 24" (610) minimum clearance above unit required for air exhaust and 36" (914)

front access required for service.

3. Keep cabinet within 15 degrees of vertical while handling.

4. Top and bottom cable entry available through removable access plates.

Remove, punch to suit conduit size and replace.

5. Unit bottom is structurally adequate for forklift handling.

CONDUIT

DETAIL B

2.6" (66mm)

Outside Frame

6. Control wiring and power wiring must be run in separate conduits.

7. All wiring is to be in accordance with national and local electrical codes.

8. Width dimension includes side panels. Subtract 1.4" (35mm) when removing both side panels.

9. Depth dimension includes the front door and rear panel.

10. See technical information drawing for shipping weights.

U40-4C-1001

Rev. 5

27 Liebert

®

NXL

Figure 19 Outline drawing, 400kVA, 575V/600V Liebert NXL

Installation Drawings

Cable Entry

Conduit Plate

Actual Usable Area

10.2" x 34.2"

(260mm x 870mm)

75.3"

(1912mm)

TOP VIEW

76.8"

(1950mm)

UPS Cabinet

61.8" (1570mm)

98.4" (2500mm)

FRONT VIEW

I/O Bypass Cabinet

36.6" (930mm)

FRONT

39.4"

(1000mm)

RIGHT SIDE VIEW

2.9"

(74mm)

Cable Entry

Conduit Plate

See Detail A

To Outside

Outside

Frame

FRONT

Cable Entry

Conduit Plate

BOTTOM VIEW

NOTE:

1. All dimensions are in inches (mm).

2. 24" (610) minimum clearance above unit required

for air exhaust, and 36" (914) front access required for service.

Actual Usable Area

12.8" x 34.2"

(325mm x 870mm)

3. Keep cabinet within 15 degrees of vertical while handling.

4. Top and bottom cable entry available through removable

access plates. Remove punch to suit conduit size and replace.

5. Unit bottom is structurally adequate for forklift handling.

6. Control wiring and power wiring must be run in separate conduits.

7. All wiring is to be in accordance with national and local electrical codes

8. Width dimension includes one side panel. Subtract 0.7" (17mm)

when removing the side panel.

9. Depth dimension includes the front door and rear panel.

10. See technical information drawing for shipping weights.

Detail A

I/O Bypass Cabinet

Bottom

Cable Entry

U40-4C-1006

Rev. 2

3.1"

(80mm)

Liebert

®

NXL

28

Figure 20 Outline drawing, 400kVA, 575V/600V Liebert NXL with DC I/O cabinet

Installation Drawings

Cable Entry

Conduit Plate

Actual Usable Area

10.2" x 34.2"

(260mm x 870mm)

(Service)

Access Plate

12" x 12.3"

(305mm x 312mm)

19.2"

(488mm)

Cable Entry

Conduit Plate

Actual Usable

Area

12.1"

(307mm)

TOP VIEW

75.3"

(1912mm)

76.8"

(1950mm)

DC I/O Cab.

Outside

Frame

3.1"

(80mm)

UPS Cabinet

77.9" (1978mm)

114.5" (2908mm)

FRONT VIEW

FRONT

To Outside

2.5"

(64mm)

I/O Bypass Cabinet

2.9"

(74mm)

36.6" (930mm)

To Outside

Outside

Frame

FRONT

Cable Entry

Conduit Plate

Actual Usable Area

9.2" x 34.2"

(233mm x 870mm)

Cable Entry

Conduit Plates

See Detail A

DETAIL A

DC I/O Cabinet

Bottom Cable Entry

Cable Entry

Conduit Plate

Actual Usable Area

12.8" x 34.2"

(325mm x 870mm)

FRONT

DETAIL B

I/O Bypass Cabinet

Bottom Cable Entry

39.4"

(1000mm)

RIGHT SIDE VIEW

3.1"

(80mm)

Note:

1. All dimensions are in inches (mm].

2. 24" (610) minimum clearance above unit

required for air exhaust and 36" (914)

front access required for service.

3. Keep cabinet within 15 degrees of vertical

while handling.

4. Top and bottom cable entry available

through removable access plates. Remove,

punch to suit conduit size and replace.

5. Unit bottom is structurally adequate for

forklift handling.

6. Control wiring and power wiring must be

run in separate conduits.

7. All wiring is to be in accordance with national

and local electrical codes.

8. Width dimension includes side panels.

Subtract 1.4" (35mm) when removing both

side panels.

9. Depth dimension includes the front door

and rear panel.

10. See technical information drawing

for shipping weights.

Cable Entry

Conduit Plate

See Detail B

U40-4C-1008

Rev. 2

BOTTOM VIEW

29 Liebert

®

NXL

Figure 21 Main components, 250kVA, 480V Liebert NXL

HMI Screen

HMI Keylock or

EMO Button

(Optional)

Liebert

IntelliSlot

Housings

Installation Drawings

Module Output

Circuit Breaker (CB2)

Back Feed

Breaker (BFB)

External

Interface

Board (EIB)

Main Input

Circuit Breaker (CB1)

Option Box

(6 Slots Available)

Input/Output

Cabinet

Liebert

®

NXL

Doors and Inner Skins Removed

30

U40-2C-1000

Rev. 4

Figure 22 Main components, 250kVA, 575/600V, and 300kVA, 480/575/600V Liebert NXL

HMI Screen

HMI Keylock or

EMO Button

(Optional)

Liebert

IntelliSlot

Housings

Installation Drawings

Module Output

Circuit Breaker (CB2)

Back Feed

Breaker (BFB)

External

Interface

Board (EIB)

Main Input

Circuit Breaker (CB1)

Option Box

(6 Slots Available)

Input/Output

Cabinet

Doors and Inner Skins Removed

31

U40-3C-1000

Rev. 5

Liebert

®

NXL

Installation Drawings

Figure 23 Main components, 400kVA, 480V Liebert NXL

HMI Screen

HMI Keylock or

EMO Button

(Optional)

Liebert

IntelliSlot

Housings

External

Interface

Board (EIB)

Module Output

Circuit Breaker (CB2)

Back Feed

Breaker (BFB)

Main Input

Circuit Breaker (CB1)

Option Box

(6 Slots Available)

Input/Output

Cabinet

Liebert

®

NXL

Doors and Inner Skins Removed

32

U40-4C-1000

Rev. 3

Figure 24 Main components, 400kVA, 575V/600V Liebert NXL

HMI Screen

External

Interface

Board

(EIB)

Main Input

Circuit

Breaker

(CB1)

Installation Drawings

Backfeed

Breaker

(BFB)

Module Output

Circuit Breaker

(CB2)

DC Negative

Busbar

DOORS REMOVED

DC Positive Busbar

DOORS AND INNER SKINS REMOVED

Liebert

IntelliSlot

Housings

Bypass Input

& Neutral

Busbars

Output

& Neutral

Busbars

Rectifier

Input

Busbars

Ground

Busbar

U40-4C-1005

Rev. 0

33 Liebert

®

NXL

Installation Drawings

Figure 25 Main components, 400kVA, 575V/600V Liebert NXL with DC I/O cabinet

HMI Screen

External

Interface

Board (EIB)

Backfeed

Breaker (BFB)

Main Input

Circuit

Breaker

(CB1)

Module Output

Circuit Breaker

(CB2)

DC Positive

Busbar

DC Negative

Busbar

Ground

Busbar

DOORS REMOVED

DOORS AND INNER SKINS REMOVED

Liebert

IntelliSlot

Housings

Bypass Input &

Neutral Busbars

Output &

Neutral Busbars

Rectifier

Input

Busbars

Ground

Busbar

U40-4C-1007

Rev. 0

Liebert

®

NXL

34

Figure 26 Input/output conduit detail drawing, 250-300kVA, all voltages, Liebert NXL

DC

3" Conduit, 2 Places

Input

3.5" Conduit, 2 Places

Output

3.5" Conduit, 2 Places

Output

3.5" Conduit, 2 Places

Input

3.5" Conduit, 2 Places

DC

3" Conduit, 2 Places

Installation Drawings

Low Voltage

1.5" Conduit

FRONT

TOP VIEW

Low Voltage

1" Conduit, 14 Places

FRONT

Low Voltage

1.5" Conduit

BOTTOM VIEW

Extended position

76.8" (1950mm)

See Detail D

For DC Busbars

DC Positive

DC Negative

See Note 6

Ground Bus

(Top Entry)

See Detail D

For Input Busbars

UPS Input

Bypass

Neutral

B

59.4" (1509mm)

56.4" (1432mm)

52.9" (1343mm)

49.4" (1255mm)

46.4" (1178mm)

43.4" (1102mm)

Output

D

Inner Panel

Removed

For Clarity

31.4" (797mm)

28.4" (721mm)

25.4" (645mm)

21.9" (556mm)

A

Ground Bus

(Bottom Entry)

Output

Neutral

C

FRONT RIGHT SIDE VIEW

.0"

(0mm)

Ø .56"

(14mm)

Typical

1.75

(44mm)

Typical

.87"

(22mm)

.87"

(22mm)

.98"

(25mm)

1.10"

(28mm)

1.75

(44mm)

Typical

(Bottom

Entry)

1.75

(44mm)

Typical

(Top

Entry)

DETAIL A

Notes:

1. All dimensions are in inches (mm).

DETAIL B

Ø .56"

(14mm) Typical

2. 24" (610) minimum clearance above unit required for air exhaust,

and 36" (914) front access required for service.

3. Keep cabinet within 15 degrees of vertical while handling.

4. Top and bottom cable entry available through removable

access plates. Remove punch to suit conduit size and replace.

5. Unit bottom is structurally adequate for forklift handling.

6. These brackets can be removed during installation but must be

replaced after installation.

7. Control wiring and power wiring must be run in separate conduits.

8. All wiring is to be in accordance with national and local electrical

codes.

1.75

(44mm)

Typical

Ø .56"

(14mm)

Typical

1.75

(44mm)

Typical

(Bottom

Entry)

.88" x .56" Slot

(22mm x 14mm)

6 Places

Each Bar

1.75

(44mm)

Typical

DETAIL C

DETAIL D

1.75

(44mm)

Typical

Ø .56"

(14mm) Typical

Rev. 3

(Top Entry)

U40-3E-1400

35 Liebert

®

NXL

Installation Drawings

Figure 27 Input/output terminal detail, 400kVA, 480V Liebert NXL

DC

(2) 3" Conduit

Bypass

(2) 3.5" Conduit

Input

(2) 3" Conduit

Output

(2) 3.5" Conduit

Output

(2) 3.5" Conduit

Input

(2) 3" Conduit

Bypass

(2) 3.5" Conduit

DC

(2) 3" Conduit

Ø.56

(14)Typ.

1.75 (44)

Typ.

.87

(22)

.87 (22)

.98 (25)

1.1

(28)

Low Voltage

1.5" Conduit

DETAIL A

1.75 (44)

Typ. (Bottom (Entry)

TOP VIEW

Low Voltage

(14) 1" Conduit

BOTTOM VIEW

Low Voltage

(14) 1" Conduit

1.75 (44)

Typ.(Top

(Entry)

76.8

(1950)

Bypass

Neutral

DC Positive

Dc Negative

See Note 6

A

Ground Bus

Location

(Top Entry)

Bypass Input

Rectifier Input

Output

Inner Panel

Removed

For Clarity

D

B

C

59.4 (1509)

56.4 (1432)

1.75 (44)

52.9 (1343)

Typ.

49.4 (1255)

46.4(1178)

43.4 (1102 )

40.4 (1026)

37.4(950)

34.4 (874)

.56

(14)Typ.

31.4(797)

28.4 (721)

25.4 (645)

DETAIL B

Ø .56

(14)Typ.

1.75 (44)

Typ.

DETAIL C

21.9 (556)

1.75 (44)

Typ.

(Bottom

(Entry)

1.75 (44)

Typ. (Top

(Entry)

Ground Bus

(Bottom Entry)

Output

Neutral

0

.88 x .56 Slot

6 Places

DETAIL D

Each Bar

Ø .56

(14)Typ.

FRONT

NOTES

1. All dimensions are in inches (mm).

RIGHT SIDE VIEW

2. 24" minimum clearance above unit required

for air exhaust.

3. Keep cabinet within 15 degrees of vertical.

4. Top and bottom cable entry available through

removable access plates. Remove, punch to

suit conduit size and replace.

5. Unit bottom is structurally adequate for forklift handling.

6. These brackets can be removed during installation but

must be replaced after installation.

7. Control wiring and power wiring must be run in separate conduits.

8. Unless otherwise noted, use copper or aluminum conductors

suitable for at least 75°C.

9. All wiring is to be in accordance with national and local

electrical codes.

Liebert

®

NXL

36

Figure 28 Input/output terminal detail, 400kVA, 575V/600V Liebert NXL

Installation Drawings

BOTTOM

Cable Entry

Conduit Plate

12.8" x 33.9"

(325mm x 861mm)

FRONT

TOP

Cable Entry

Conduit Plate

12.6" x 37"

(320mm x 940mm)

Bypass Input and Neutral

See Detail A

3.1" (80mm)

Typ.

Between

Busbars

51.4"

(1305mm)

Output and Neutral

See Detail B

DETAIL A

Ø .512"

(13mm) Typ.

Ground

See Detail D

Detail A & B:

Suitable for two-hole lugs

(3 each) at 1.75" spacing between hole centers and

1.75" max. tongue width.

32.9"

(835mm)

15.6"

(396mm)

15.2"

(385mm)

RIGHT SIDE VIEW

3.1"

(80mm)

Typ. Between

Busbars

Rectifier Input

See Detail C

FRONT

Ø .512"

(13mm) Typ.

DETAIL B

Notes:

1. All dimensions are in inches (mm).

2. 24" minimum clearance above unit is required.

3. Keep cabinet within 15 degrees of vertical.

1.75" (44mm)

Rev. 0

Ø.563" (014mm) Typ.

U40-4E-1408

1.75" (44mm)

4. Top and bottom cable entry available through removable

access plates. Remove and punch to suit conduit size

2.56"

0.87" (22mm)

(65mm) Typ

and replace.

5. Unit bottom is structurally adequate for forklift handling.

6. These brackets can be removed during installation but must

be replaced after installation.

7. Control wiring and power wiring must be run in separate conduits

8. All wiring is to be in accordance with national and local electrical codes.

DETAIL C

Ø .512"

(13mm) Typ.

1.1" (28mm)

0.99" (25mm)

DETAIL D

37 Liebert

®

NXL

Installation Drawings

Figure 29 Input/output terminal detail, 400kVA, 575V/600V Liebert NXL with DC I/O cabinet

FRONT

Ø.563" (014mm) Typ.

1.75"

(44mm)

Cable Entry

Conduit Plate

9.2" x 17.1"

(233 x 435mm)

2 Places

Cable Entry

Conduit Plate

20.6" x 15"

(524 x 381mm)

2" (51mm) Typ.

DETAIL A

DC POSITIVE

Ø.563" (014mm) Typ.

1.75"

(44mm)

BOTTOM

FRONT

TOP

2" (51mm) Typ.

DETAIL B

DC NEGATIVE

Ø.563" (014mm) Typ.

1.75"

(44mm)

DC Positive

See Detail A

47.1"

(1197mm)

35.3"

(897mm)

24.5"

(622mm)

LEFT SIDE VIEW

DC Negative

See Detail B

Ground

See Detail C

FRONT

1.75" (44mm)

DETAIL C

GROUND

NOTES

1. All dimensions are in inches (mm).

2 .24" minimum clearance above unit is required.

3 . Keep cabinet within 15 degrees of vertical.

4. Top and bottom cable entry available through

removable access plates. Remove and punch

to suit conduit size and replace.

5. Unit bottom is structurally adequate for

forklift handling.

6. These brackets can be removed during installation

but must be replaced after installation.

7. Control wiring and power wiring must be run

in separate conduits

8. All wiring is to be in accordance with national

and local electrical codes.

U40-4E-1407

Rev. 0

Liebert

®

NXL

38

Figure 30 Top cable entry routing and installation order

FOR UNIT RATINGS

250kVA- 480/575/600V

300kVA- 480/575/600V

400kVA- 480V

Fault Brace

Bypass Input

Fault Brace

Rectifier Input

Fault Brace

Output

DC (Positive)

DC (Negative)

Ground

(Top Entry)

Bypass

Neutral

Bypass

Input

Fault Brace

Bypass Input

Fault Brace

Rectifier Input

Rectifier

Input

OUTPUT

Fault Brace

Output

Ground

(Bottom Entry)

Output

Neutral

FRONT VIEW

SIDE VIEW

Installation Drawings

Output Conduit

Input Conduit

Bypass Conduit

DC Conduit

DC (Positive)

DC (Negative)

Bypass Neutral

Bypass Input

(Phase C)

Rectifier Input

(Phase C)

Output (Phase C)

Output Neutral

39

Recommended cable installation order :

1. DC Power

2. Bypass Neutral

3. Bypass Input Power

(Phases A-B-C)

4. Rectifier Input Power

(Phases A-B-C)

5. Output Power

(Phases A-B-C)

6. Output Neutral

7. Ground

The cables must be routed around the fault braces to prevent the cables from coming in contact with other busbars.

Liebert

®

NXL

Installation Drawings

Figure 31 Bottom cable entry routing and installation order

FOR UNIT RATINGS

250kVA- 480/575/600V

300kVA- 480/575/600V

400kVA- 480V

Fault Brace

Bypass Input

Fault Brace

Rectifier Input

Fault Brace

Output

DC (Positive)

DC (Negative)

Ground (Top Entry)

Bypass Neutral

Fault Brace

Bypass Input

Bypass Input

Fault Brace

Rectifier Input

Rectifier

Input

Fault Brace

Output

Output

Ground (Bottom Entry)

Output Neutral

FRONT VIEW

DC (Positive)

DC (Negative)

Bypass Neutral

Bypass Input

(Phase C)

Rectifier

Input

(Phase C)

Output

(Phase C)

Output

Neutral

Input Conduit

Bypass Conduit

Output

Conduit

DC Conduit

SIDE VIEW

Recommended cable installation order :

1.) Output Neutral

2.) Output Power

(Phases A-B-C)

3.) Rectifier Input Power

(Phases A-B-C)

4.) Bypass Input Power

(Phases A-B-C)

5.) Bypass Neutral

6.) DC Power

7.) Ground

The cables must be routed around the fault braces to prevent the cables from coming in contact with other busbars.

Liebert

®

NXL

40

Installation Drawings

Figure 32 Single-input busbar arrangement—250-400kVA units

12 x4

13 x4

11

13 x4

14 x8

15 x4

3 Places

Isometric View

250, 300 and 400kVA Units

Not all parts shown for clarity

Figure 33 Low-voltage cable entry—250-400kVA units

REMOVE PLATES

FLIP PLATES

INSTALL

Low-voltage cables can be install through the top of each unit. The entry conduit landing plate is shipped inverted.

To install, remove conduit plate, flip and reinstall. Removal of side plate is for access to pull wires.

41 Liebert

®

NXL

Specifications

5.0

S

PECIFICATIONS

Table 10 Liebert NXL UPS specifications

250kVA

480V

250kVA

575/600V

300kVA

480V

300kVA

575/600V

400kVA

480V

400kVA

575/600V

Input Parameters

Input Voltage to Rectifier, VAC

Input Voltage to Bypass, VAC

Input Voltage Range, VAC

480/575/600V 3-phase, 3-wire

480/575/600V 3-phase, 3-wire

+10% to -15

-15% to -20% *

-20% to -30% **

<-30% ***

60 Input Frequency, Hz

Permissible Input Frequency Range,

Hz

Reflected Input THDi at Nominal

Voltage at Full Load, %

Power Walk-In, sec

Bypass Neutral Current

Battery & DC Parameters

Battery Type

Nominal Battery Bus, VDC

Battery Float Voltage, VDC

Minimum End of Discharge Voltage,

VDC

55 to 65

<10% with 6-pulse & Passive Filter

1 to 30 (selectable) in 1 sec. Increment

1.7 times full-phase current

VRLA (Valve Regulated Lead Acid) or (FLA) Flooded Lead Acid

480V

540V

384V (for VRLA / Flooded Lead Acid)

DC Ripple Voltage in Float & Const

V Ch. Mode, %

Temperature Compensated Battery

Charging

Output Parameters

Inverter Type

Output Power, kW

<1 (RMS value) < 3,4% V pp

Standard (with temperature probe)

Output Voltage, VAC

Output Voltage Regulation, %

Output Voltage Regulation (100%

Unbalanced Load)

Output Frequency, Hz

Output Frequency Regulation, %

Output THDv Linear Load at

Nominal Voltage, %

225

IGBT-based Sine-Sine PWM Controlled

270

480V 3-ph, 4-w

< 1% (3-phase RMS average)

< 2% (3-phase RMS average)

60

± 0.1

<2%

Output THDv at Nominal Voltage

Including a 100kVA Non Linear Load per EN 62040-3, %

Capacity to Handle High Crest

Factor Load

Capacity to handle Step Load, %

2.5% (max)

3:1

Transient Recovery (linear loads), %

Unbalance Loads Current Capacity

0-100 or 100-0

Within 5% peak-to-peak in one line cycle.

100% of nominal phase current

* The UPS will operate at full load, but the battery charge will either be reduced or off (depending on input current).

** The UPS will operate at full load, but UPS may source share with the batteries (depending on input current).

*** UPS will be in Battery mode

360

400kVA

575/600V with DC

I/O

Cabinet

Liebert

®

NXL

42

Specifications

Table 10 Liebert NXL UPS specifications (continued)

250kVA

480V

250kVA

575/600V

300kVA

480V

300kVA

575/600V

400kVA

480V

400kVA

575/600V

Capacity to Handle Leading PF Load

0.9 lag to Nom at 0.95 Lead at 0,9 Lead

Voltage Displacement, ° el

Overload Conditions, % FL

Subject to Max. kW rating

Subject to Max. kW rating

Subject to 12.5% kW derate or same Rating and 50°F (10°C) Temp. Derate

120° ±1° el (with 100% unbalanced load)

105% for 85 minutes

110% for 60 minutes

125% for 10 minutes

150% for 1 minute

Physical Parameters and Standards, in (mm)

Width, With Side Panels

1

Depth

2

71.8

(1823)

33.5

(850)

Height

SMS

Weight, Unpacked, lb. (kg) approximate

1+N

Weight, Unpacked, lb. (kg) approximate

Max heat Dissipation, Full Load,

BTU/hr (kW)

Cooling Air CFM

Color

Front Door Opening (for serviceability)

3965

(1798)

4040

(1833)

<54,000

(15.8)

5440

(2468)

78.5 (1993)

4840

(2195)

5515

(2502)

<54,000

(15.8)

4915

(2229)

<62,000

(18.2)

5894

39.4 (1000)

76.8 (1950)

5440

(2468)

5515

(2502)

<64,500

(18.9)

Black (ZP-7021)

More than 180°

6280

(2849)

6380

(2894)

<74,500

(21.8)

98.4

(2500)

7945

(3604)

8045

(3649)

<86,300

(25.3)

7092

Degree of Protection for UPS

Enclosure

Minimum Clearance, Top, in (mm)

Minimum Clearance, Back, in (mm)

Minimum Clearance, Sides, in (mm)

Location of Cable Entrance

Standards and Conformities

IP 20 (with and without front door open)

24 (610)

0

0

Top or Bottom

UL 1778, 4th Ed; CSA 22.2 107.3; FCC Part 15, Class A

FCC, Class A—Standard; IEC62040-2, Level 4, Criteria A

EN61000-4-3, Level 3, Criteria A;

EN61000-4-6, Level 4, Criteria A; EN61000-2-2, Criteria A

EN61000-4-4, Level 4, Criteria A

ANSI C62.41, Category A3 &B3; IBC 2012/CBC 2010

ISTA Procedure 1H; WEEE

Environmental Parameters

Storage Temperature Range, °F

(°C)

-13 to 158 (-25 to 70)

Operating Temperature Range, °F

(°C)

Acoustical Noise, dBA

32 to 104 (0 to 40) (UPS)

Relative Humidity

68

95% or less

Non-Condensing (Operating and Non-Operating)

Maximum Altitude Above MSL, ft (m)

4920 (1500) (as per IEC 62040/3) - 1% Max kW derate / 328 rise between 4921-9842

(100m rise between 1500-3000m)

1. Width dimensions are with side panels attached. Subtract 1.4" (35mm) for dimensions without side panels.

2. Depth dimensions include the front door and rear panel.

400kVA

575/600V with DC

I/O

Cabinet

114.5

(2908)

8275

(3754)

8375

(3799)

<86,300

(25.3)

43 Liebert

®

NXL

Specifications

Table 11 Current ratings—rectifier input

UPS Rating kVA kW

Voltage,

VAC

Nominal

Current

Maximum

Current

300

300

400

400

400

250

250

250

300

270

270

360

360

360

225

225

225

270

575

600

480

575

600

480

575

600

480

308

295

497

419

401

312

260

250

371

386

368

621

524

502

389

326

312

464

Table 12 Current ratings—bypass input

UPS Rating kVA kW

300

300

400

400

400

250

250

250

300

225

225

225

270

270

270

360

360

360

Voltage,

VAC

480

575

600

480

575

600

480

575

600

Nominal

Current

301

251

241

361

301

289

481

402

385

Table 13 Current ratings—output

UPS Rating Voltage, kVA kW VAC

250 225

250 225

250 225

300 270

300 270

300 270

400 360

400 360

400 360

480

575

600

480

575

600

480

575

600

Nominal

Current

301

289

481

402

385

301

251

241

361

Notes on Tables

1. Nominal input current (considered continuous) is based on full-rated output load. Maximum current includes nominal input current and maximum battery recharge current (considered noncontinuous).

Continuous and noncontinuous current are defined in NEC 100.

2. Maximum input current is controlled by the current limit setting, which is adjustable. Values shown are for a maximum setting of 125%. The standard factory setting is 125%. If a smaller input feed breaker is used, the input current limit must be adjusted accordingly.

3. For units with an input transformer, the Rectifier Input Feed Breaker must be set to handle the Liebert NXL transformer inrush of up to eight times the nominal current.

4. For breaker coordination while the module is overloaded, see the current-

versus-time values on the overload curves, Figures 34 and 35.

5. The battery current is at an EOD voltage of 1.61 volts/cell.

Table 14 Current ratings—battery

UPS Rating kVA kW

250

300

400

400

225

270

360

360

AC Input/Output

Voltage, VAC

480, 575 and 600

480, 575 and 600

480

600

Maximum Battery

Current at EOD

615

730

980

990

Liebert

®

NXL

44

Specifications

Table 15 Recommended conduit and cable sizes

UPS Rating kVA

250

250

250

300

300

300

400

270

270

270

360

kW

225

225

225

400 360

400 360

Bypass Input

Voltage

(VAC)

480

575

600

480

575

600

480

575

600

(# of conduits); size of conduits; # -size of phase cables per conduit; size of cable for ground per conduit

Copper Conductors

(2) 2C 3-250kcmil, #3AWG

(2) 1.5C 3-#4/0AWG, #3AWG

(2) 1.5C 3-#4/0AWG, #3AWG

(2) 2C 3-350kcmil, #2AWG

(2) 2C 3-250kcmil, #3AWG

(2) 1.5C 3-#4/0AWG, #3AWG

(2) 2.5C, 3-500kcmil, #1/0AWG

(2) 2.5C 3-350kcmil, #2AWG

(2) 2.5C 3-350kcmil, #2AWG

Aluminum Conductors

(2) 2C 3-350kcmil, #1AWG

(2) 1.5C 3-250kcmil, #1AWG

(2) 1.5C 3-250kcmil, #1AWG

(2) 2.5C 3-500kcmil, #1/0AWG

(2) 2.0C 3-350kcmil, #1AWG

(2) 2.0C 3-300kcmil, #1AWG

(2) 2.5C 3-750kcmil, #3/0AWG

(2) 2.5C 3-500kcmil, #1/0AWG

(2) 2.5C 3-500kcmil, #1/0AWG

UPS Rating kVA

250

250

250

300

300

300

400

400

400

Output kW

225

225

225

270

270

270

360

360

360

Voltage

(VAC)

480

575

600

480

575

600

480

575

600

(# of conduits); size of conduits; # -size of phase cables per conduit;

#-size of neutral cables per conduit; size of cable for ground per conduit

Aluminum Conductors Copper Conductors

(2) 2.5C 3-250kcmil, 2-#4/0AWG, #3AWG

(2) 2C 3-#4/0AWG, 2-#2/0AWG, #4AWG

(2) 2C 3-#4/0AWG, 2-#2/0AWG, #4AWG

(2) 2.5C 3-350kcmil, 2-#4/0AWG, #3AWG

(2) 2.5C 3-250kcmil, 2-#4/0AWG, #3AWG

(2) 2C 3-#4/0AWG, 2-#4/0AWG, #4AWG

(3) 3.5C, 3-600kcmil, 2-500kcmil, #1/0AWG

(2) 2.5C 3-#4/0AWG, 2-#4/0AWG, #2AWG

(2) 2.5C 3-#4/0AWG, 2-#4/0AWG, #2AWG

(2) 2.5C 3-350kcmil, 2-#250kcmil, #1AWG

(2) 2.0C 3-250kcmil, 2-#4/0AWG, #2AWG

(2) 2.0C 3-250kcmil, 2-#4/0AWG, #2AWG

(2) 2.5C 3-500kcmil, 2-300kcmil, #1AWG

(2) 2.5C 3-350kcmil, 2-250kcmil, #1AWG

(2) 2.5C 3-300kcmil, 2-250kcmil, #2AWG

(2) 3.5C 3-750kcmil, 2-500kcmil, #1/0AWG

(2) 3C 3-300kcmil, 2-300kcmil, #1/0AWG

(2) 3C 3-300kcmil, 2-300kcmil, #1/0AWG

UPS Rating kVA

250

250

250

300

300

300

400

kW

225

225

225

270

270

270

360

400 360

400

Battery

360

Voltage

(VAC)

480

575

600

480

575

600

480

575

600

(# of conduits); size of conduits; # -size of phase cables per conduit;

#-size of neutral cables per conduit; size of cable for ground per conduit

Aluminum Conductors Copper Conductors

(2) 2.5C 2-250kcmil, 2-#4/0AWG, #3AWG

(2) 2C 3-#4/0AWG, 2-#2/0AWG, #4AWG

(2) 2C 3-#4/0AWG, 2-#2/0AWG, #4AWG

(2) 2.5C 3-350kcmil, 2-#4/0AWG, #3AWG

(2) 2.5C 3-250kcmil, 2-#4/0AWG, #3AWG

(2) 2C 3-#4/0AWG, 2-#4/0AWG, #4AWG

(3) 3.5C, 3-600kcmil, 2-500kcmil, #1/0AWG

(2) 2.5C 3-#4/0AWG, 2-#4/0AWG, #2AWG

(2) 2.5C 3-#4/0AWG, 2-#4/0AWG, #2AWG

(2) 2.5C 3-350kcmil, 2-#250kcmil, #1AWG

(2) 2.0C 3-250kcmil, 2-#4/0AWG, #2AWG

(2) 2.0C 3-250kcmil, 2-#4/0AWG, #2AWG

(2) 2.5C 3-500kcmil, 2-300kcmil, #1AWG

(2) 2.5C 3-350kcmil, 2-250kcmil, #1AWG

(2) 2.5C 3-300kcmil, 2-250kcmil, #2AWG

(2) 3.5C 3-750kcmil, 2-500kcmil, #1/0AWG

(2) 3C 3-300kcmil, 2-300kcmil, #1/0AWG

(2) 3C 3-300kcmil, 2-300kcmil, #1/0AWG

(# of conduits); size of conduits; # -size of phase cables per conduit; size of cable for ground per conduit

UPS Rating kVA

250

300

400

kW

225

270

360

Copper Conductors

(2) 2C 2-600kcmil, #1/0AWG

(2) 2.5C 2-750kcmil, #1/0AWG

(3) 2C, 2-500kcmil, #2/0AWG

Aluminum Conductors

(2) 2.5C 2-750kcmil, #3/0AWG

(3) 2.0C 2-500kcmil, #3/0AWG

(3) 2.0C 2-600kcmil, #4/0AWG

45 Liebert

®

NXL

Specifications

Table 15 Recommended conduit and cable sizes

Bonding

UPS Rating Main Bonding Jumper/Grounding Electrode Conductor kVA kW Copper Conductors Aluminum Conductors

250

300

225

270

(1) #1/0AWG/ (1) #1/0AWG

(1) #2/0AWG/ (1) #2/0AWG

(1) #1/0AWG/ (1) #1/0AWG

(1) #2/0AWG/ (1) #2/0AWG

400 360 (1) #2/0AWG/ (1) #2/0AWG (1) #2/0AWG/ (1) #2/0AWG

1. Recommended cable sizes are 167°F (75°C) (THW) wire at 86°F (30°C) ambient. Unless otherwise noted, use copper or aluminum conductors suitable for at least 75°C.

2. For continuous operations not at 86°F (30°C), recommend that the site planner choose the appropriate cable type based on the particular installation requirements.

3. Conduit size is based on FMC type conduit with two neutral conductors rated at 200% of phase.

Liebert

®

NXL

46

Figure 34 Inverter overload data

Specifications

47

Time, seconds

Continuous

Liebert

®

NXL

Figure 35 Bypass overload data

Specifications

Liebert

®

NXL

48

Time, Seconds

Continuous

Specifications

Table 16 Recommended lug sizes

Cable Size

T&B Copper

One Hole

T&B Copper

Two Hole

#8AWG

#6AWG

#4AWG

#2-3AWG

#1AWG

#1/0AWG

#2/0AWG

#3/0AWG

#4/0AWG

250kcmil

300kcmil

350kcmil

400kcmil

500kcmil

600kcmil

750kcmil

54930BE

54905BE

54906BE

54942BE

54947BE

54950BE

54951BE

54965BE

54970BE

54913BE

54914BE

54915BE

54916BE

54918BE

54920BE

54922BE

54850BE

256-30695-868

256-30695-733

54811BE

54857BE

256-30695-593

54862BE

54864BE

54866BE

54868BE

54870BE

54872BE

54874BE

54876BE

54878BE

54880BE

T&B Aluminum

One Hole

60104-TB

60109-TB

60114-TB

60120

60126

60132

60138

60144

60150

60156

60162

60165

60168

60171

60176

60178

T&B Aluminum

Two Hole

60244

60250

60256

60262

60267

60269

60273

60275

60277

60238

Table 17 Recommended torque values

Grade 5 Steel – Unified Thread System Torque Units - lbf.*in.

Size

1/4

5/16

3/8

7/16

1/2

Fastener

Finish =>

9/16

14

20

13

20

12

18

Threads/

Inch, T pi

20

28

18

24

16

24

Plain Steel

No Washer/

Flat Washer

Lock

Washer

593

662

904

1,020

1,305

1,456

101

116

209

231

370

420

934

1,050

224

246

392

442

Class 8.8 Steel – Metric Thread System Torque Units - N*m

Zinc Plating

No Washer/

Flat Washer

534

596

814

918

1,175

1,310

91

104

188

208

333

378

Lock

203

223

355

400

844

948

M5

M6

M8

Fastener

Finish =>

Washer Size

M10

M12

M14

Thread

Pitch T

0.8

0.5

1

0.75

1.25

1

1.5

1.25

1.75

1.25

2

1.5

p

Plain Steel

No Washer/

Flat Washer

6.1

6.9

10

11

25

27

50

53

87

95

139

151

Lock

Washer

64

67

128

136

Zinc Plating

No Washer/

Flat Washer

5.5

6.2

9

10

23

24

45

47

78

86

125

136

Lock

Washer

59

61

119

127

49 Liebert

®

NXL

A

PPENDIX

A - C

ABINET

I

NTERCONNECTION

Figure 36 Cabinet interconnection cabling

Specifications

Liebert

®

NXL

50

Figure 37 Cabinet interconnection cabling (continued)

Specifications

Load V/I Board

51 Liebert

®

NXL

Specifications

Table 18 Cabinet interconnection cabling

Cable Part # Cabinet Start

These Cables Already Connected to UPS

606986G1 I/O Bypass - IntelliSlot

606980G3 I/O Bypass - BPSS Board

606985G1 I/O Bypass - BPSS Board

607080G1 I/O Bypass - BPSS Board

These Cables Already Connected to I/O Bypass

I/O Bypass - BFB

607011G1

I/O Bypass - BFB

I/O Bypass - CT7

607024G1

607045G1

I/O Bypass - CT8

I/O Bypass - CT9

I/O Bypass - Fan13

I/O Bypass - Fan14

Source: 608841P1, Rev. 0

Connector

Label

PIN1, PIN2

P0500

P0501

P44

Cabinet Finish

UPS - EIB Board

UPS - UPSC Board

UPS - UPSC Board

UPS - Power Supply

BYP_PS_B

BYP_PS_C

X1, X2

UPS - F42

UPS - F43

UPS - Load V/I Board

X1, X2

X1, X2

UPS - Load V/I Board

UPS - Load V/I Board

CONNECTOR1 UPS - Fan Interface Board

CONNECTOR2 UPS - Fan Interface Board

Connector

Label

IntelliSlot

P0500

P0501

P44

F42-1

F43-1

P0713

P0714

P0715

P1005

P1006

Liebert

®

NXL

52

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.

© 2013 Liebert Corporation

All rights reserved throughout the world. Specifications subject to change without notice.

® Liebert is a registered trademark of Liebert Corporation.

All names referred to are trademarks or registered trademarks of their respective owners.

SL-25420_REV15_09-15

Emerson Network Power

Division: Liebert

Web: www.emerson.com

Technical Support / Service

Web Site

www.liebert.com

Monitoring

[email protected]

800-222-5877

Outside North America: +00800 1155 4499

Single-Phase UPS & Server Cabinets

[email protected]

800-222-5877

Outside North America: +00800 1155 4499

Three-Phase UPS & Power Systems

800-543-2378

Outside North America: 614-841-6598

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

Zona Industriale Tognana

35028 Piove Di Sacco (PD) Italy

+39 049 9719 111

Fax: +39 049 5841 257

Asia

29/F, The Orient Square Building

F. Ortigas Jr. Road, Ortigas Center

Pasig City 1605

Philippines

+63 2 687 6615

Fax: +63 2 730 9572

www.EmersonNetworkPower.com

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