AC Power
For Business-Critical Continuity™
Liebert SmartSwitch ™
A Switching Solution For Reliable, Redundant AC Power
Now You Can Have Dual Cord Dependability
For All Your Critical Systems
If your electronics application is one of the many that
requires continuous operation — without tolerance for even
scheduled downtime — you need the reliability provided by
dual power sources.
Many of today’s servers and other computing systems
are equipped with dual power cords…designed to
provide built-in redundancy by allowing connection to
two separate power sources. In a similar move, facilities
are now introducing this level of dual cord reliability to
critical equipment that operates on a single power input
by supplying two independent electrical feeds. The key
to making it all work, however, is to have a dependable
switching mechanism to support it.
Liebert SmartSwitch Enhances The
Availability Of Power To Your Critical
Electronic Equipment
Modeled on proven UPS technology, the Liebert
SmartSwitch point-of-use power transfer switch is
placed at the most effective spot — the last
connection upstream of the protected equipment —
allowing dual AC power paths all the way up to the
critical load. From design to operation and maintenance,
Liebert SmartSwitch has the features that optimize
power availability:
Features & Benefits
What Makes A Reliable Switch?
Flexibility:
The transfer switch should have proven technology and
design features to ensure that it will operate dependably
when you need it. The swihching mechanism should be
easy to configure, install, use and maintain.
n
Transfers manually or automatically.
n
Allows selection of preferred input source
without rewiring or load shutdown.
n
Provides integral maintenance bypass to both
input sources for servicing convenience.
A switch needs to operate swiftly and reliably enough to
compensate for “fast” power failures such as UPS system
failure, circuit breaker trip or operator error — without
affecting operation of the protected equipment.
The Liebert SmartSwitch does exactly this by providing
rapid switching between two independent AC power
sources, for uninterrupted operation of critical
electronic equipment.
UPS or
Utility A
Higher Availability:
n
Switches quickly between two AC power sources,
making power transfer time invisible to your
protected equipment.
n
Allows module replacement without load
shutdown, with hot-swap electronics.
n
Employs Break-Before-Make switching to
eliminate connecting together of the
independent power sources, even under faulted
conditions.
UPS or
Utility B
PDU A
PDU B
Lowest Total Cost Of Ownership
Liebert
SmartSwitch
n
Critical
Load
2
Liebert SmartSwitch provides automatic
or manual transfer between dual utility
or UPS sources, allowing dual AC power
paths all the way up to the critical load.
Detects potential switch failures before the
problem becomes critical, through diagnostics
and transfer tests.
n
n
n
n
n
n
n
Choice of output receptacles and connector is
available to match your load specifications, simplifying
system installation and setup.
Selectable preferred input feature allows you to
determine the normal and alternate power source
of your choice without rewiring or load shutdown.
Integral maintenance bypass to both input sources
provides a safe and fast solution to servicing the
Liebert SmartSwitch without disturbing your
protected equipment.
Hot swappable electronics module and bypass
feature allow your protected equipment to remain up
and running, even when the Liebert SmartSwitch
module is being replaced or serviced.
LED indicators provide at-a-glance operating status.
Eight output contacts are available for remote status
indication. RS232 ASCII communications port allows
setpoint control and remote monitoring.
ETL Listed to UL Standard 1008 for safety.
CE Mark (50 Hz) — complies with EMC and low voltage
directives.
1/2" KNOCKOUT
0.88" (22mm)
(TYP. 8 PLACES)
17.25"
(438mm)
RACK MOUNT
STATUS CONTACTS
CONNECTOR
REMOVABLE
"HOT-SWAPPABLE"
ELECTRONICS
MODULE
18.5"
(469mm)
20.4"
(518mm)
OUTPUT
INPUT & OUTPUT
RECEPTACLE CONNECTIONS
RS-232 CONNECTOR
19" (483mm)
18.3" (465mm)
NORMAL
0.279" (7mm) x
0.406" (10mm) SLOT
(4 SLOTS)
0.85"
(21.5mm)
MAN.
XFER
51
MAN.
XFER
52
BYPASS
TO 51
5.20"
(132mm)
3.5" (88.9mm)
BYPASS
TO 52
BYPASS / TRANSFER SWITCH
(LOCATED BEHIND KEYLOCK COVER)
LED SWITCH STATUS
INDICATORS
KEYLOCK LATCH
RS-232 CONNECTOR
STATUS CONTACTS CONNECTOR
AIR EXHAUST AREA
DO NOT BLOCK
COVER
PLATE
3.15"
Convenient, from selection to maintenance.
Three different configurations allow the unit to be
placed under a raised floor, mounted on a wall or used
in a rack, based on your site needs.
2.25"
3.76"
TOP VIEW
1/2" KNOCKOUT
0.88" (22mm)
(3 PLACES)
2.25"
WALL MOUNT
BOTTOM VIEW
0.28" (7MM)
(6 MTG. HOLES)
20.0"
11.1"
PREFERRED SOURCE
ALTERNATE SOURCE
52
51
LED SWITCH STATUS
INDICATORS AND LABELS
KEYLOCK LATCH
Liebert SmartSwitch includes
manual transfer test capability
to assure continued proper
operation.
The unit is available
with your choice
of receptacles and
connector,simplifying
installation and setup.
REMOVABLE "HOT-SWAPPABLE"
ELECTRONICS MODULE
25.4"
INPUT, OUTPUT
AND CONTROL
CONNECTIONS
LOCATED BEHIND
REMOVABLE
ACCESS DOORS
52
MAN.
XFER
51
INPUT
SOURCE 52
BYPASS
TO 51
SOURCE 51
DO M C B A DO M C B A DO M C B A
26.9"
25.4"
NORMAL
51
Bypass Switch
Transfer Control
MAN.
XFER
52
BYPASS
TO 52
BYPASS / TRANSFER SWITCH
(LOCATED BEHIND KEYLOCK COVER)
.75"
2.0"
8.0"
8.0"
10.7"
2.5"
AIR INTAKE
2 SIDES
FRONT VIEW
RIGHT SIDE VIEW
11"
(279mm)
UNDER FLOOR
51
52
INPUT CONNECTIONS
20"
(508mm)
RELAY
CONTACTS
& RS-232
PORT
52
51
PERFERRED SOURCE
ALTERNATE SOURCE
OUTPUT RECEPTACLE
"HOT-SWAPPABLE"
ELECTRONICS
Hot swappable
electronics module
and bypass feature
allow your protected
equipment to remain
up and running, even
when the SmartSwitch
is being serviced.
LED indicators provide at-a-glance
operating status. Eight output contacts
are available for remote status indication.
RS232 ASCII communications port allows
setpoint control and remote monitoring.
With separate sections for
power connections and
electronics, Liebert
SmartSwitch can sustain
power to the load even when
the electronics module is
being swapped for service.
Source 1
Output
20"
(508mm)
Source 2
Connections and
Bypass Section
Hot-Swap
Electronics Section
Logic and Power Supplies
3
Liebert Corporation
Liebert SmartSwitch ™
Technical Specifications
Model
Recept.
3743
SSIBMAR01
3744
SSIBMBU01
3753
SSIBMCU01
SSIBMDU01
3754
SSIBMEU01
7324
420R9V
SS420R9VU01
430R9V
SS430R9VU01
SS460R9VU01
460R9V
SS360R6WU01
360R6W
5262
SS515R2R01
(2) 5262
SS515R4R01
5392CN
SS520R2R01
(2) 5392CN
SS520R4R01
9308
SS530R1U01
5662
SS615R2R01
SS620R2R01
6392CN
SS630R1U01
9330
SS1420R1U01
8410
SS1430R1U01
9430
SS1520R1U01
8420
SSL515R1R01
4710
SSL515R2R01
4700
SSL520R1R01
2310
SSL520R2R01
(2) 2310
SSL530R1U01
2610
SSL615R1R01
4560
SSL615R2R01
4550
SSL620R1R01
2320
SSL620R2R01
(2) 2320
SSL630R1U01
2620
SSL1420R1U01
2410
SSL1430R1U01
2710
SSL1520R1U01
2420
SSL1530R1U01
2720
SSL2120R1U01
2510
SSL2130R1U01
2810
SSFW120R01
none
SSFW130U01
none
none
SSFW220R01
none
SSFW220NU01
SSFW230U01
none
SSFW230NU01
none
none
SSFW320U01
SSFW320NU01
none
SSFW330U01
none
SSFW330NU01
none
SSFW360U01
none
none
SSFW360NU01
none
SSFW360NW01
SSFW360NX01
none
SSFW116R01x
none
none
SSFW150U01x
SSFW325U01x
none
SSFW325NU01x
none
SSFW350U01x
none
SSFW350W01x
none
none
SSFW350X01x
Voltage
Freq
Hz,
208
208
208
208
208
208
208
208
208
120
120
120
120
120
208
208
208
120/208
120/208
208
120
120
120
120
120
208
208
208
208
208
120/208
120/208
208
208
120/208
120/208
120
120
208
120/208
208
120/208
208
120/208
208
120/208
208
120/208
120/208
120/208
230
230
400
400/230
400
400
400
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
50
50
50
50
50
50
50
No. of Conductors
Ph.
Neu.
Gnd
2
3
2
3
3
3
3
3
2
1
1
1
1
1
2
2
2
2
2
3
1
1
1
1
1
2
2
2
2
2
2
2
3
3
3
3
1
1
2
2
2
2
3
3
3
3
3
3
3
3
1
1
3
3
3
3
3
—
—
—
—
—
—
—
—
—
1
1
1
1
1
—
—
—
1
1
—
1
1
1
1
1
—
—
—
—
—
1
1
—
—
1
1
1
1
—
1
—
1
—
1
—
1
—
1
1
1
1
1
—
1
—
—
—
* Supply branch breaker not included in Liebert SmartSwitch. Consult factory for other recepticles.
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Breaker Size*
Poles Amps
2
3
2
3
3
3
3
3
2
1
1
1
1
1
2
2
2
2
2
3
1
1
1
1
1
2
2
2
2
2
2
2
3
3
3
3
1
1
2
2
2
2
3
3
3
3
3
3
3
3
1
1
3
3
3
3
3
20
15
30
30
60
20
30
60
60
15
15
20
20
30
15
20
30
20
30
20
15
15
20
20
30
15
15
20
20
30
20
30
20
30
20
30
20
30
20
20
30
30
20
20
30
30
60
60
60
60
16
50
25
25
50
50
50
Amps
Cont.
Enc.
Type
16
12
24
24
48
16
24
48
48
12
12
16
16
24
12
16
24
16
24
16
12
12
16
16
24
12
12
16
16
24
16
24
16
24
16
24
16
24
16
16
24
24
16
16
24
24
48
48
48
48
16
50
25
25
50
50
50
R
U
U
U
U
U
U
U
U
R
R
R
R
U
R
R
U
U
U
U
R
R
R
R
U
R
R
R
R
U
U
U
U
U
U
U
R
U
R
U
U
U
U
U
U
U
U
U
W
W
R
U
U
U
U
W
W
1050 Dearborn Drive
P.O. Box 29186
Columbus, Ohio 43229
800 877 9222 Phone (U.S. &
Canada Only)
614 888 0246 Phone (Outside U.S.)
614 841 6022 FAX
Via Leonardo Da Vinci 8
Zona Industriale Tognana
35028 Piove Di Sacco (PD)
Italy
39 049 9719 111 Phone
39 049 5841 257 FAX
Emerson Network Power Asia Pacific
7/F., Dah Sing Financial Centre
108 Gloucester Rd, Wanchai
Hong Kong
852 25722201 Phone
852 28029250 FAX
liebert.com
24 x 7 Tech Support
800 222 5877 Phone
614 841 6755 (outside U.S.)
While every precaution has been taken to ensure accuracy and
completeness in 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.
© 2007 Liebert Corporation. All rights reserved throughout
the world. Specifications subject to change without notice.
All names referred to are trademarks or registered trademarks
of their respective owners.
® Liebert and the Liebert logo are registered trademarks
of the Liebert Corporation.
SL-20300 (R10/07)
Printed in USA
Emerson Network Power.
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Business-Critical Continuity™.
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