Liebert® NXL™ Ship-Ahead Input/Output Cabinet
Installation Manual – 250-400kVA, 60Hz
AC Power
For Business-Critical Continuity™
CONTACTING LIEBERT FOR SUPPORT
To contact 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
1.0 MECHANICAL INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2 Preliminary Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.3 Environmental Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.4 Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.0 ELECTRICAL INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.1 External Protective Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Power Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.0 INSTALLATION DRAWINGS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
FIGURES
Figure 1 Input/output conduit detail drawing, 250-300kVA Liebert NXL UPS . . . . . . . . . . . . . . . . . . . . . . 9
Figure 2 Input/output conduit detail drawing, 400kVA Liebert NXL UPS . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 3 Top cable entry routing and installation order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 4 Bottom cable entry routing and installation order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 5 Floor mount brackets—standard and optional layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
TABLES
Table 1 Current ratings—rectifier input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 2 Current ratings—bypass input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 3 Current ratings—output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 4 Current ratings—battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 5 Recommended conduit and cable sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 6 Recommended lug sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
i
ii
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important instructions that should be followed during installation of your Liebert NXL
tions that apply to your installation, before working with the UPS. Retain this manual for use by
installing personnel.
!
!
™
Input/Output Cabinet. Read this manual thoroughly, paying special attention to the sec-
WARNING
Risk of electrical shock. Can cause personal injury or death.
Check for voltage with both AC and DC voltmeters before working within the cabinet. 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.
Special safety precautions are required for procedures involving handling, installation of the
UPS system. Observe all safety precautions in this manual before handling or installing the
cabinet. 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 the cabinet to avoid equipment damage or injury to
personnel.
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.
The area around the cabinet 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 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
1.0 MECHANICAL INSTALLATION
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 Input/Output Cabinet.
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.
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.
Mechanical Installation
1.2 Preliminary Checks
Before installing the cabinet, please carry out the following preliminary checks:
• Visually examine the cabinet for transit damage, both internally and externally. Report any damage to the shipper immediately.
• Verify that the correct equipment is being installed.
• 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.
1.3 Environmental Considerations
1.3.1 UPS Room
The cabinet intended for indoor installation and should be located in a cool, dry, clean-air environment.
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.
1.4 Positioning
The Liebert NXL Input/Output Cabinet is structurally designed to withstand lifting from the base.
CAUTION
!
Risk of unit tipping over. Can cause equipment damage and personal injury.
Floor mount brackets must remain attached to the frame until the unit is being placed in its
final, installed position. (The final installation will always require the unit to be bolted to
another Liebert NXL product.) Failure to comply with these instructions could result in
equipment damage and/or injury to personnel.
2
1.4.1 Moving the Cabinets
The Liebert NXL Input/Output Cabinet can be handled with a forklift or similar equipment.
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 the cabinet with straps is not authorized.
1.4.2 Clearances
Clearance around the front of the equipment should be sufficient to enable free passage of personnel
with the doors fully open. Installation must leave a distance of 24" (610mm) between the top of the
cabinet and any overhead obstacles to permit adequate circulation of air coming out of the unit.
Space must be reserved on the left side of the I/O cabinet. The UPS Rectifier/Inverter cabinet can be
mounted only on the left side of the I/O cabinet.
1.4.3 Floor Installation/Anchoring
If the equipment is to be located on a raised floor, it should be mounted on a pedestal designed to
accept the equipment point loading. Refer to the base view to design this pedestal.
Mechanical Installation
3
2.0 ELECTRICAL INSTALLATION
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.
Check for voltage with both AC and DC voltmeters before working within the cabinet.
Only properly trained and qualified personnel wearing appropriate safety headgear, gloves,
shoes and glasses should be involved in installing the cabinet or preparing the cabinet for
installation.
2.1 External Protective Devices
For safety, circuit breakers must be installed 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 Tables 1 through 4 for overload capacity.
Dual Input
Electrical Installation
When wiring the cabinet with a separate rectifier and bypass input, each input must be protected separately.
Size the breakers according to the input currents shown in Tables 1 and 2.
2.2 Power Cables
The UPS will require 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 Tables 1 through 4, follow local wiring practices and take into consideration the environmental conditions (temperature and physical
support equipment and methods), room temperature and conditions of installation of the cable and
system’s overload capacity.
For cable entry terminal, refer to Figure 1.
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 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 4.
4
The following are guidelines only and are 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 nonlinear loads. Refer to the values in Tables 2 and 3.
• 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 smaller, paralleled cables for heavy currents, as this
can ease installation considerably.
2.2.1 Power Cable Connection Procedure
Equipment Ground
The equipment ground busbar is located as shown in Figure 1. 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.
NOTICE
Proper grounding reduces problems in systems caused by electromagnetic interference.
Electrical Installation
WARNING
!
Risk of fire and electrical shock. Can cause equipment damage, personal injury or death.
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 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 in the following procedure.
Refer to the appropriate cable connection drawing in Figure 3 or 4.
1. Verify that the equipment is isolated from its external power source. 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:
NOTE
Ensure correct phase rotation.
• Top Cable Entry (see Figure 3)
• Bottom Cable Entry (see Figure 4)
5
Electrical Installation
Top Cable Entry
When making the power connections, 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 3). This is to prevent the cables from contacting
other busbars. The recommended conduit layout is shown in Figure 1.
Bottom Cable Entry
When making the power connections, 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 3. This is to prevent the cables from contacting
other busbars. The recommended conduit layout is shown in Figure 1.
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.
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.
NOTE
If fault bracing brackets were removed during installation, they MUST be replaced.
5. Close and secure the interior and exterior doors.
Table 1 Current ratings—rectifier input
UPS Rating Voltage, VAC
Nominal
Current
250 225 480 480 480 313 392 400 500
300 270 480 480 480 376 469 500 600
400 360 480 480 480 500 625 700 800
Table 2 Current ratings—bypass input
UPS Rating Voltage, VAC
250 225 480 480 480 301 376 400
300 270 480 480 480 361 451 500
400 360 480 480 480 481 601 700
Table 3 Current ratings—output
UPS Rating Voltage, VAC
250 225 480 480 480 301 376 400
300 270 480 480 480 361 451 500
400 360 480 480 480 481 601 700
Maximum
Current
Nominal
Current
Nominal
Current
External
100% Breaker
Trip, Amps
10 Minute
Overload
10 Minute
Overload
External
80% Breaker
Trip, AmpskVA kW Input Bypass Output
External Breaker
Trip, AmpskVA kW Input Bypass Output
External Breaker
Trip, AmpskVA kW Input Bypass Output
6
Table 4 Current ratings—battery
UPS Rating
Nominal VDC
250 225 480 615 700
300 270 480 737 800
400 360 480 981 1000
Maximum Battery
Current at EOD
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. Maximum input
current is controlled by the current limit setting which is adjustable. Values shown are for
maximum setting of 125%. Standard factory setting is 125%.
2. Recommended bypass external overcurrent protection is based on 125% overload capacity for 10
minutes.
3. All recommended external overcurrent protections are based on 80% rated breakers.
4. Nominal battery voltage is shown at 2.0 volts / cell.
Table 5 Recommended conduit and cable sizes
Rectifier Input
UPS Rating
250 225 480 480 480
300 270 480 480 480
400 360 480 480 480
Voltage
(VAC)
Top Cable Entry Input
Wire & Conduit
Ph, G THW / FMC
(2) 2.5C 3-250kcmil,
#1/0AWG
(2) 3C 3-350kcmil,
#1/0AWG
(2) 3C 3-500kcmil,
#1/0AWG
Bypass Input
UPS Rating Voltage (VAC)
250 225 480 480 480
300 270 480 480 480
400 360 480 480 480
Top Cable Entry Input
Wire & Conduit
Ph, N, G THW / FMC
(3) 2.5C 3-#2/0AWG,
2-#1/0AWG, #1/0AWG
(3) 2.5C 3-#4/0AWG,
2-#1/0AWG, #1/0AWG
(3) 3C 3-250kcmil,
2-#4/0AWG, #1/0AWG
Output
UPS Rating Voltage (VAC)
250 225 480 480 480
300 270 480 480 480
400 360 480 480 480
Top Cable Entry Input
Wire & Conduit
Ph, N, G THW / FMC
(3) 2.5C 3-#2/0AWG,
2-#1/0AWG, #1/0AWG
(3) 2.5C 3-#4/0AWG,
2-#1/0AWG, #1/0AWG
(3) 3C 3-250kcmil,
2-#4/0AWG, #1/0AWG
Battery
UPS Rating Voltage (VAC)
250 225 480 480 480
300 270 480 480 480
400 360 480 480 480
If the UPS is used in a four-wire system, the neutral ground jumper must be removed.
Top Cable Entry Input
Wire & Conduit
Wires, G THW / FMC
(2) 2.5C 2-350kcmil,
#1/0AWG
(2) 2.5C 2-500kcmil,
#1/0AWG
(3) 2.5C 2-500kcmil,
#4/0AWG
Nominal Selection Alternate Selection
Bottom Cable Entry
Input Wire & Conduit
Ph, G THW / RNC
(2) 2.5C 3-250kcmil,
#1/0AWG
(2) 3C 3-350kcmil,
#1/0AWG
(2) 3.5C 3-500kcmil,
#1/0AWG
Nominal Selection Alternate Selection
Bottom Cable Entry
Input Wire & Conduit
Ph, N, G THW / RNC
(3) 3C 3-#2/0AWG,
2-#1/0AWG, #1/0AWG
(3) 3C 3-#4/0AWG,
2-#1/0AWG, #1/0AWG
(3) 3C 3-250kcmil,
2-#4/0AWG, #1/0AWG
Nominal Selection Alternate Selection
Bottom Cable Entry Input
Wire & Conduit
Ph, N, G THW / RNC
(3) 3C 3-#2/0AWG,
2-#1/0AWG, #1/0AWG
(3) 3C 3-#4/0AWG,
2-#1/0AWG, #1/0AWG
(3) 3C 3-250kcmil,
2-#4/0AWG, #1/0AWG
Nominal Selection Alternate Selection
Bottom Cable Entry Input
Wire & Conduit
Wires, G THW / RNC
(2) 2.5C 2-350kcmil,
#1/0AWG
(2) 3C 2-500kcmil,
#1/0AWG
(3) 3C 2-500kcmil,
#4/0AWG
External Breaker
Trip, AmpskVA kW
Top Cable Entry Input
Wire & Conduit
Ph, G THW / FMC
(3) 2C 3-#2/0AWG,
#1/0AWG
(3) 2.5C 3-#4/0AWG,
#1/0AWG
(3) 2.5C 3-250kcmil,
#1/0AWG
Top Cable Entry Input
Wire & Conduit
Ph, N, G THW / FMC
(2) 3C 3-250kcmil,
2-#4/0AWG, #1/0AWG
(2) 3C 3-350kcmil,
2-#4/0AWG, #1/0AWG
(2) 3.5C 3-500kcmil,
2-350kcmil, #1/0AWG
Top Cable Entry Input
Wire & Conduit
Ph, N, G THW / FMC
(3) 2.5C 3-#2/0AWG,
2-#1/0AWG, #1/0AWG
(3) 2.5C 3-#4/0AWG,
2-#1/0AWG, #1/0AWG
(3) 3C 3-250kcmil,
2-#4/0AWG, #1/0AWG
Top Cable Entry Input
Wire & Conduit
Wires, G THW / FMC
(3) 2C 2-#4/0AWG,
#1/0AWG
(3) 2C 2-250kcmil,
#1/0AWG
(4) 2C 2-250kcmil,
#4/0AWG
Electrical Installation
Bottom Cable Entry
Input Wire & Conduit
Ph, G THW / RNCkVA kW Input Bypass Output
(3) 2C 3-#2/0AWG,
#1/0AWG
(3) 2.5C 3-#4/0AWG,
#1/0AWG
(3) 2.5C 3-250kcmil,
#1/0AWG
Bottom Cable Entry
Input Wire & Conduit
Ph, N, G THW / RNCkVA kW Input Bypass Output
(2) 3C 3-250kcmil,
2-#4/0AWG, #1/0AWG
(2) 3.5C 3-350kcmil,
2-#4/0AWG, #1/0AWG
(2) 4C 3-500kcmil,
2-350kcmil, #1/0AWG
Bottom Cable Entry
Input Wire & Conduit
Ph, N, G THW / RNCkVA kW Input Bypass Output
(3) 3C 3-#2/0AWG,
2-#1/0AWG, #1/0AWG
(3) 3C 3-#4/0AWG,
2-#1/0AWG, #1/0AWG
(3) 3C 3-250kcmil,
2-#4/0AWG, #1/0AWG
Bottom Cable Entry Input
Wire & Conduit
Wires, G THW / RNCkVA kW Input Bypass Output
(3) 2C 2-#4/0AWG,
#1/0AWG
(3) 2C 2-250kcmil,
#1/0AWG
(4) 2.5C 2-250kcmil,
#4/0AWG
7
Table 6 Recommended lug sizes
T&B Series 54000
Cable Size
One Hole
#8 AWG 54930BE 54850BE
#6 AWG 54905BE 256-30695-868
#4 AWG 54906BE 256-30695-733
#2-3 AWG 54942BE 54811BE
#1 AWG 54947BE 54857BE
#1/0 AWG 54950BE 256-30695-593
#2/0 AWG 54951BE 54862BE
#3/0 AWG 54965BE 54864BE
#4/0 AWG 54970BE 54866BE
250kcmil 54913BE 54868BE
300kcmil 54914BE 54870BE
350kcmil 54915BE 54872BE
400kcmil 54916BE 54874BE
500kcmil 54918BE 54876BE
600kcmil 54920BE 54878BE
750kcmil 54922BE 54880BE
Use the T&B crimping tools recommended for these types of lugs.
T&B Series 54000
Two Hole
Electrical Installation
8
3.0 INSTALLATION DRAWINGS
Figure 1 Input/output conduit detail drawing, 250-300kVA Liebert NXL UPS
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
Installation Drawings
LOW VOLTAGE
1.5" CONDUIT
DC POSITIVE
DC NEGATIVE
SEE NOTE 6
O
1.75
(44)
TYP
LOW VOLTAGE
1.5" CONDUIT
SHOWN IN EXTENDED
POSITION
TOP VIEW
LOW VOLTAGE
(14) 1" CONDUIT
GROUND BUS
(TOP ENTRY)
BOTTOM VIEW
BYPASS
NEUTRAL
B
BYPASS INPUT
RECTIFIER INPUT
OUTPUT
INNER PANEL
REMOVED
FOR CLARITY
A
GROUND BUS
(BOTTOM ENTRY)
OUTPUT
NEUTRAL
FRONT
.56
(14)
TYP
.87
(22)
.87
(22)
.98
(25)
1.10
(28)
1.75
(44)
TYP
DETAIL A
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.
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
REPLACEDAFTER INSTALLATION.
7. CONTROL WIRING AND POWER WIRING MUST BE RUN IN SEPARATE CONDUITS.
8. ALUMINUM AND COPPER-CLAD ALUMINUM CABLES ARE NOT RECOMMENDED.
9. ALL WIRING IS TO BE IN ACCORDANCE WITH NATIONAL AND LOCAL ELECTRICAL CODES.
DETAIL B
D
C
RIGHT SIDE VIEW
(BOTTOM
ENTRY)
1.75
(44)
TYP
(TOP
ENTRY)
.56
O
(14)
TYP
.88 X .56 SLOT
6 PLACES
EACH BAR
1.75
(44)
TYP
.56
O
(14)
TYP
1.75
(44)
TYP
(BOTTOM
ENTRY)
76.8
( 1950 )
59.4
(1509)
56.4
(1432)
52.9
(1343)
49.4
(1255)
46.4
(1178)
43.4
(1102)
40.4
(1026)
37.4
(950)
34.4
(874)
31.4
(797)
28.4
(721)
25.4
(645)
21.9
(556)
.0
(0)
DETAIL C
DETAIL D
1.75
(44)
TYP
O
1.75
(44)
TYP
(TOP
ENTRY)
.56
(14)
TYP
9
Figure 2 Input/output conduit detail drawing, 400kVA Liebert NXL UPS
Installation Drawings
LOW VOLTAGE
1.5" CONDUIT
DC POSITIVE
DC NEGATIVE
SEE NOTE 6
TOP VIEW
DC
(2) 3" CONDUIT
BYPASS
(2) 3.5" CONDUIT
INPUT
(2) 3" CONDUIT
OUTPUT
(2) 3.5" CONDUIT
LOW VOLTAGE
(14) 1" CONDUIT
GROUND BUS
LOCATION
(TOP ENTRY)
BYPASS INPUT
RECTIFIER INPUT
OUTPUT
INNER PANEL
REMOVED
FOR CLARITY
BYPASS
NEUTRAL
BOTTOM VIEW
B
D
OUTPUT
(2) 3.5" CONDUIT
INPUT
(2) 3" CONDUIT
BYPASS
(2) 3.5" CONDUIT
DC
(2) 3" CONDUIT
LOW VOLTAGE
1.5" CONDUIT
76.8
(1950)
59.4
(1509)
52.9
(1343)
46.4
(1178)
40.4
(1026)
34.4
(874)
28.4
(721)
21.9
(556)
56.4
(1432)
49.4
(1255)
43.4
(1102 )
37.4
(950)
31.4
(797)
25.4
(645)
.98
1.10
(28)
(25)
GROUND BUS
(BOTTOM ENTRY)
DETAIL B
OUTPUT
NEUTRAL
1.75
(44)
TYP
(BOTTOM
ENTRY)
O
RIGHT SIDE VIEW
1.75
(44)
TYP
(TOP
ENTRY)
.56
(14)
TYP
A
FRONT
O
.56
(14 )
TYP
1.75
(44 )
.87
(22)
TYP
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.
4. TOPAND BOTTOM CABLE ENTRYAVAILABLE THROUGH REMOVABLEACCESS
PLATES. REMOVE, PUNCH TO SUIT CONDUIT SIZE AND REPLACE.
5. UNIT BOTTOM IS STRUCTURAL LY ADEQUATE FOR FORKLIFT HANDLING.
6. THESE BRACKETS CAN BE REMOVED DURING INSTALLATION BUT MUST BE
REPLACEDAFTER INSTALLATION.
7. CONTROL WIRING AND POWER WIRING MUST BE RUN IN SEPARATE CONDUITS.
8. ALUMINUMAND COPPER-CLAD ALUMINUM CABLESARE NOT RECOMMENDED.
9. ALL WIRING IS TO BE IN ACCORDANCE WITH NATIONAL AND LOCAL ELECTRICAL
CODES.
.87
(22)
DETAIL A
C
O
1.75
(44)
TYP
(14)
.56
TYP
(44)
(BOTTOM
ENTRY)
.88 X .56 SLOT
6 PLACES
EACH BAR
DETAIL C
1.75
TYP
1.75
(44)
TYP
.0
(0)
DETAIL D
O
1.75
(44)
TYP
(TOP
ENTRY)
.56
(14)
TYP
10
Figure 3 Top cable entry routing and installation order
Installation Drawings
OUTPUT CONDUIT
INPUT CONDUIT
BYPASS CONDUIT
DC CONDUIT
FAULT BRACE
BYPASS INPUT
FAULT BRACE
RECTIFIER INPUT
FAULT BRACE
OUTPUT
FRONT VIEW
DC (POSITIVE)
DC (NEGATIVE)
GROUND (TOP ENTRY)
BYPASS NEUTRAL
BYPASS INPUT
RECTIFIER INPUT
OUTPUT
GROUND
(BOTTOM ENTRY)
OUTPUT NEUTRAL
FAULT BRACE
BYPASS INPUT
FAULT BRACE
RECTIFIER INPUT
FAULT BRACE
OUTPUT
SIDE VIEW
DC (POSITIVE)
DC (NEGATIVE)
BYPASS NEUTRAL
BYPASS INPUT
(PHASE C)
RECTIFIER INPUT
(PHASE C)
OUTPUT (PHASE C)
OUTPUT NEUTRAL
Recommended order of installation for cables:
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. This is
to prevent the cables from
coming in contact with
other busbars.
11
Figure 4 Bottom cable entry routing and installation order
DC (POSITIVE)
DC (NEGATIVE)
GROUND (TOP ENTRY)
BYPASS NEUTRAL
FAULT BRACE
BYPASS INPUT
FAULT BRACE
RECTIFIER INPUT
FAULT BRACE
OUTPUT
BYPASS INPUT
RECTIFIER
INPUT
OUTPUT
FAULT BRACE
BYPASS INPUT
FAULT BRACE
RECTIFIER INPUT
FAULT BRACE
OUTPUT
Installation Drawings
DC (POSITIVE)
DC (NEGATIVE)
BYPASS NEUTRAL
BYPASS INPUT
(PHASE C)
RECTIFIER INPUT
(PHASE C)
OUTPUT (PHASE C)
GROUND (BOTTOM ENTRY)
OUTPUT NEUTRAL
FRONT VIEW
INPUT CONDUIT
BYPASS CONDUIT
DC CONDUIT
SIDE VIEW
Recommended order of installation for cables:
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. This is
to prevent the cables from
coming in contact with
other busbars.
OUTPUT NEUTRAL
OUTPUT CONDUIT
12
Figure 5 Floor mount brackets—standard and optional layout
20.7
(525mm)
Installation Drawings
27.4"
(695mm)
BOTTOM VIEW (Standard)
7.7"
(197mm)
36.8"
(935mm)
27.4"
(695mm)
(120mm)
27.4"
(695mm)
4.7"
DETAIL AREA
FLOOR MOUNTS
KEEP BRACKETSATTACHED
WAR N ING
Brackets MUST remain attached to the frame until the
unit is being placed in its final installed position. (The final
installation will always require the unit to be bolted
BOTTOM VIEW (Optional)
NOTES:
1. All dimensions are in inches (mm).
2. 24" minimum clearance above unit required.
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. Control wiring and power wiring must be run in separate conduits.
7. Aluminum and copper-clad aluminum cables are not recommended.
8. All wiring is to be in accordance with national and local electrical codes.
9. Optional bottom view can be used to bolt input / output cabinet to floor
and allow the UPS to be positioned. This option requires the
cabinet to be bolted to the floor.
10. Brackets can be removed after the ups has been bolted to the
input / output cabinet.
to another Liebert NXL product.) Failure to comply with
these instructions could result in equipment
damage and/or injury to personnel.
13
Installation Drawings
14
Ensuring The High Availability
0f Mission-Critical Data And Applications.
Emerson Network Power, the global leader in enabling business-critical
continuity, ensures network resiliency and adaptability through
a family of technologies—including Liebert power and cooling
technologies—that protect and support business-critical systems.
Liebert solutions employ an adaptive architecture that responds
to changes in criticality, density and capacity. Enterprises benefit
from greater IT system availability, operational flexibility and
reduced capital equipment and operating costs.
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.
© 2008 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.
Technical Support / Service
Web Site
www.liebert.com
Monitoring
800-222-5877
monitoring@emersonnetworkpower.com
Outside the US: 614-841-6755
Single-Phase UPS
800-222-5877
upstech@emersonnetworkpower.com
Outside the US: 614-841-6755
Three-Phase UPS
800-543-2378
powertech@emersonnetworkpower.com
Environmental Systems
800-543-2778
Outside the United States
614-888-0246
Locations
United States
1050 Dearborn Drive
P.O. Box 29186
Columbus, OH 43229
Europe
Via Leonardo Da Vinci 8
Zona Industriale Tognana
35028 Piove Di Sacco (PD) Italy
+39 049 9719 111
Fax: +39 049 5841 257
Asia
7/F, Dah Sing Financial Centre
108 Gloucester Road, Wanchai
Hong Kong
852 2572220
Fax: 852 28029250
SL-25440_REV0_05-08
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The global leader in enabling Business-Critical Continuity.
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Connectivity
DC Power
Business-Critical Continuity, Emerson Network Power and the Emerson Network Power logo are trademarks and ser vice marks of Emerson Electric Co.
©2008 Emerson Electric Co.
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