Liebert EXM Distribution Cabinet User Manual
Liebert®
EXM™ Distribution Cabinet
User Manual - 50 kVA -250kVA, 3 Phase, 60 Hz
The information contained in this document is subject to change
without notice and may not be suitable for all applications. While
every precaution has been taken to ensure the accuracy and
completeness of this document, Vertiv assumes no responsibility
and disclaims all liability for damages resulting from use of this
information or for any errors or omissions. Refer to other local
practices or building codes as applicable for the correct methods,
tools, and materials to be used in performing procedures not
specifically described in this document.
The products covered by this instruction manual are manufactured
and/or sold by Vertiv This document is the property of Vertiv and
contains confidential and proprietary information owned by Vertiv.
Any copying, use or disclosure of it without the written permission of
Vertiv is strictly prohibited.
Names of companies and products are trademarks or registered
trademarks of the respective companies. Any questions regarding
usage of trademark names should be directed to the original
manufacturer.
Technical Support Site
If you encounter any installation or operational issues with your product, check the pertinent
section of this manual to see if the issue can be resolved by following outlined procedures.
Visit https://www.VertivCo.com/en-us/support/ for additional assistance.
TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.0 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.0 INSTALLATION INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1 Unpacking and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1.1 Unpacking and Preliminary Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1.2 Handling Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1.3 Unit Preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1.4 Location Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Power and Control Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2.1 Input Power Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.2.2 Equipment Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.2.3 Grounding Electrode Conductor for Liebert EXM Distribution Cabinets with Transformer
17
2.2.4 Output Power Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.0 EQUIPMENT INSPECTION AND STARTUP . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.1 Internal Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
3.2 Startup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
4.0 OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.1 Startup Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.1.1 Normal System Shutdown. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.1.2 Normal System Turn On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.0 INSPECTION AND STARTUP CHECKLIST. . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
5.1 Exterior Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
5.2 Internal Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
5.2.1 Interior Inspection Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.3 Startup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
5.3.1 Startup Checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.0 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
6.1 Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
6.2 Inspection and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
6.2.1 Inspection Schedule. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.0 SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Vertiv™ |Liebert® Distribution Cabinet™ for Liebert EXM™ User Manual | i
FIGURES
Figure 1 Typical cabinet and floor planning dimension data, 23.6" (600mm) cabinet . . . . . . . . . 4
Figure 2 Typical cabinet and floor planning dimension data, 34.6" (880mm) cabinet . . . . . . . . . 5
Figure 3 Recommended minimum front and top clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 4 Wiring diagram, 480V Liebert EXM 600mm Distribution Cabinet with transformer for
panelboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 5 Wiring Diagram, 480V Liebert EXM 600mm Distribution Cabinet with subfeed break-
ers9
Figure 6 Wiring Diagram, 480V Liebert EXM 880mm Distribution Cabinet with subfeed break-
ers10
Figure 7 Wiring diagram, 480V Liebert EXM 880mm Distribution Cabinet with transformer for
subfeed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 8 Electrical connection locations for 23.6" (600mm) cabinet . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 9 Subfeed SF2 electrical connection location for 23.6" (600mm) cabinet. . . . . . . . . . . . . 14
Figure 10 Ground lug detail for 23.6" (600mm) cabinet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 11 Electrical connection location for 34.6" (880mm) cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 12 Subfeed SF6 electrical connection location for 34.6" (880mm) cabinet. . . . . . . . . . . . . 16
Figure 13 Lug details for 34.6" (880mm) cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 14 Typical Liebert EXM 600mm Distribution Cabinet equipment arrangement. . . . . . . . 18
Figure 15 Typical Liebert EXM 880mm Distribution Cabinet equipment arrangement. . . . . . . . 19
TAB LES
Table 1 23.6-inch (600mm) cabinet weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Table 2 34.6-inch (880mm) cabinet weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Table 3 Liebert EXM Distribution Cabinet heat output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 4 Physical standards and parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Table 5 Suggested minimum input wire size data—208V Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Table 6 Suggested minimum input wire size data—480V Units, No Transformer . . . . . . . . . . .26
Table 7 Main input circuit breaker interrupt rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Table 8 Torque specifications, general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Table 9 Panelboard main circuit breaker torque specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Table 10 Branch circuit breaker torque specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Table 11 Terminal block compression lug torque specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Vertiv™ |Liebert® Distribution Cabinet™ for Liebert EXM™ User Manual | ii
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important instructions that should be followed during installation of your Liebert
EXM Distribution Cabinet. 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 electric shock and arc flash. Can cause equipment damage, injury and death.
Verify that all incoming line voltage (power) and low-voltage (control) circuits are
de-energized and locked out before installing cables or making connections.
Equipment inspection and startup should be performed only by trained personnel wearing
appropriate safety headgear, gloves, shoes and glasses. Lethal voltages are present during
startup procedures. Electrical safety precautions must be followed throughout inspection
and startup.
Only properly trained and qualified service personnel wearing appropriate safety headgear,
gloves, shoes and glasses should perform maintenance on the Liebert Distribution Cabinet
system. All voltage sources to the unit must be disconnected before inspecting or cleaning
within the cabinet.
Lethal voltages exist within the equipment during operation. Observe all warnings and
cautions in this manual. Failure to comply may result in serious injury or death. Obtain
qualified service for this equipment as instructed.
The monitoring system contains a lithium battery for memory backup. There is a danger of
explosion if this battery is incorrectly replaced. Replace only with same or equivalent type.
Dispose of used batteries according to the manufacturer’s instructions.
NOTE
The unit should not be loosened from the shipping pallet until all handling by fork lift or pallet jack
is completed.
All power and control wiring should be installed by licensed electricians and must comply with
the NEC and applicable codes.
ELECTROMAGNETIC COMPATIBILITY—The Liebert EXM Distribution Cabinet complies with
the limits for a Class A digital device, pursuant to Part 15 of FCC rules.
Operation is subject to the following conditions:
• This device may not cause harmful interference.
• This device must accept any interference received, including interference that may cause undesired
operation.
Operating this device in a residential area is likely to cause harmful interference that users must
correct at their own expense.
The Liebert EXM Distribution Cabinet complies with the requirements of EMC Directive
2014/30/EU and the published technical standards. Continued compliance requires installation in
accordance with these instructions and use of accessories approved by Vertiv.
Vertiv™ |Liebert® Distribution Cabinet™ for Liebert EXM™ User Manual | 1
1.0 INTRODUCTION
The Liebert EXM Distribution Cabinet is designed to operate in UPS normal mode, static bypass
mode and maintenance mode. The Liebert EXM Distribution Cabinet offers 50-250kVA capacity
to match the associated Liebert EXM frame offerings. Each of the Liebert EXM Distribution
Cabinet capacities offers an optional 208/120V output transformer as well as multiple output
distribution selections.
Vertiv™ |Liebert® Distribution Cabinet™ for Liebert EXM™ User Manual | 2
2.0 INSTALLATION INSTRUCTIONS
2.1 Unpacking and Installation
NOTE
Read the entire manual before installing and operating the system. Upon receipt of a Liebert EXM
Dis
tribution Cabinet, the installer should perform the following steps to ensure a quality
installation.
2.1.1 Unpacking and Preliminary Inspection
A quality installation begins on the receiving dock.
1. Inspect the shipment for damage or signs of mishandling before unpacking the unit(s).
2. If the Liebert EXM
carefully.
Use care to avoid puncturing the container with sharp objects that would damage the contents.
3. Remove the packing and vapor barriers and inspect the equipment for any obvious shipping damages.
NOTE
The units should not be loosened from the shipping pallet until all handling by forklift or pallet
jack is completed. Complete internal inspection should be accomplished only after equipment
positioning and prior to electrical hookup.
4. If any damage is observed, immediately file a damage claim with the shipping agency and forward a copy
to:
Vertiv Corporation
1050 Dearborn Drive
P.O. Box 29186
Columbus, Ohio 43229 USA
Distribution Cabinet was shipped in an export crate, open the shipping crate
2.1.2 Handling Considerations
The Liebert EXM Distribution Cabinet is bolted to a wooden pallet to allow handling by forklift
equipment.
The Liebert EXM Distribution Cabinet is furnished with casters to allow the unit to be rolled into
place after it has been unbolted from the pallet. The unit should be kept on the shipping pallet
until it has been moved by forklift as close as practical to its installation location.
Refer to the cabinet drawings furnished with the Liebert EXM Distribution Cabinet for the unit’s
size and weight. Typical cabinet dimensions and weights are shown in Figures 1 and 2.
The route to the Liebert EXM Distribution Cabinet’s installation area should be planned to ensure
that all passages, including doorways, elevators, ramps and hallways, are large enough to
accommodate the unit and that the floors are strong enough to support the weight. Determine
whether any corners or offsets would cause problems in maneuvering the unit.
Vertiv recommends removing the exterior side panels, if supplied, before the unit is moved. This
will prevent scratches, dents and other damage to the panels.
Vertiv™ |Liebert® Distribution Cabinet™ for Liebert EXM™ User Manual | 3
Figure 1 Typical cabinet and floor planning dimension data, 23.6" (600mm) cabinet
Base
Pan
DETAIL B
39.5" (1003.7mm)
39.1" (93.7mm)
1.55"
(39.4mm)
Ventilation
Area
Customer Input
Conduit Plate **
When Stand-Alone
Panelboard
Output **
1
1
C
23.95"
(608.4mm)
Liebert
Liebert
LDMF
LDMF
E-Box Cover
78.7"
(1999.9mm)
(125mm)
375"
(14.76mm)
4.9"
8.3"
(210mm)
4" (103mm)
31.5"
(800.8mm)
B
22"
(560.4mm)
11.98"
(304.2mm)
DETAIL C
A
34.9"
(886mm)
(746.1mm)
29.4"
Ventilation
Cover Plate**
1
Customer input conduit plate and panelboard output
conduit plate may be exchanged in the field to allow customer
to decide whether to cable the unit from top or bottom.
16.1"
(409mm)
21.7"
(550mm)
DETAIL A
Vertiv™ |Liebert® Distribution Cabinet™ for Liebert EXM™ User Manual | 4
Table 1 23.6-inch (600mm) cabinet weight
Unit
kVA
50
150
Maximum
Weight, lb
(kg)
1749 (793)100
Vertiv™ |Liebert® Distribution Cabinet™ for Liebert EXM™ User Manual | 5
Figure 2 Typical cabinet and floor planning dimension data, 34.6" (880mm) cabinet
A
B
Ventilation
Area
Ventilation
Cover
Plate
1
1
1
1
Input Conduit
Plate for
Stand-Alone
Configuration
Subfeed
Output
Conduit
Plate
E-Box Cover
35" (888.4mm)
4.9"
(125mm)
4.9"
(125mm)
4.9"
(125mm)
4.9"
(125mm)
14.7"
(375mm)
31.9"
(809.7mm)
17.1"
(434.2mm)
78.7"
(1999.9)
39.5" (1003.7mm)
39.1" (993.7mm)
31.9"
(809.7mm)
15.9"
(403.6mm)
1.5" (38.9mm)
DETAIL B
DETAIL A
34.3"
(872.2mm)
28.3"
(718.1mm)
Input conduit plate and subfeed conduit plate can be
exchanged to permit either top or bottom cable entry.
26" (660mm)
31.5" (799mm)
Table 2 34.6-inch (880mm) cabinet weight
Unit kVA
150
250
Maximum
Weight, lb (kg)
2538 (1151)200
Vertiv™ |Liebert® Distribution Cabinet™ for Liebert EXM™ User Manual | 6
2.1.3 Unit Preparation
The Liebert EXM Distribution Cabinet may be easily removed from the shipping pallet and installed
by customer personnel. A typical procedure is:
1. Set the pallet assembly in a level area where there is enough room to move the Liebert EXM Distribution
Cabinet off the pallet onto the floor.
2. Remove side panels from the Liebert EXM D
panels is furnished in the installation packet.
3. Remove the bolts and two mounting brackets holding the unit to the shipping pallet.
Mounting brackets are located on either side of the unit.
4. Use a forklift to move the unit off the pallet. If a ramp is available from the pallet, it can be used to roll the
distribution cabinet off the pallet onto the floor.
5. Roll the Liebert EXM
use care when positioning unit over the floor cutout to prevent the casters from falling through the
cutout.
Distribution Cabinet to the installation area. For units to be placed on a raised floor,
istribution Cabinet, if supplied. An Allen wrench for the side
NOTE
Before maneuvering the unit into its final position, read and follow all advisories in 2.1.4 Location Considerations.
2.1.4 Location Considerations
The Liebert EXM Distribution Cabinet should be placed near the load(s) it will supply, preferably
within the data center.
Equipment location should employ the shortest output distribution cable runs consistent with
logical equipment arrangement and allowance for expansion.
The Liebert EXM Distribution Cabinet is intended for indoor installation in an area with ambient
temperatures of 32°F to 104°F (0°C to 40°C) with a relative humidity of 0% to 95% (noncondensing).
Bottom clearance is required for units with bottom entry/exit of cables. This clearance may be
provided by a raised floor at least 6" (150mm) high. Figures 1 and 2 show the typical raised-floor
cutout dimensions for cables and cooling airflow.
Recommended minimum service clearances are shown in Figure 3. The National Electrical
Code (NEC) requires the indicated front and rear clearances for service access. Clearance above
the unit is required for cooling airflow (exhaust).
As do all electrical devices, the Liebert EXM Distribution Cabinet produces heat under normal
operation (see Tab le 3). This heat must be accounted for when calculating the environmental
conditions of the room.
Vertiv™ |Liebert® Distribution Cabinet™ for Liebert EXM™ User Manual | 7
Figure 3 Recommended minimum front and top clearances
18" (457mm)
36"
(914mm)
Front
NOTE
Service access is required at the front.
Table 3 Liebert EXM Distribution Cabinet heat output
Unit kVA
50 4700 (1.37)
100 8300 (2.43)
150 11,600 (3.39)
200 15,500 (4.45)
250 18,400 (5.39)
Full Load Heat Output
BTU/Hr (kW)
2.2 Power and Control Wiring
Power and control wiring should be installed by licensed electricians. All power and control wiring
must comply with the NEC and applicable local codes.
Input power connections are always to be fed from the Liebert EXM UPS. Either attached using
factory-provided cables or remotely using cables provided by others.
Vertiv™ |Liebert® Distribution Cabinet™ for Liebert EXM™ User Manual | 8
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