Vertiv Liebert ITA2 User manual

Liebert®ITA2™MBC™, 8-10kVA, 208/220V,
Three-Phase Maintenance Bypass Cabinet
User Manual

Contacting Vertiv™for Support
To contact Vertiv Services for information or repair service in the United States, call 800-543-2378. Vertiv
Services offers a complete range of startup services, repair services, preventive maintenance plans and service
contracts.
For repair or maintenance service outside the 48 contiguous United States, contact Vertiv Services, if available in
your area.
For Vertiv Services to assist you promptly, have the following information available:
Part Numbers:
Serial Numbers:
Rating:
Date Purchased:
Date Installed:
Location:
Battery Voltage:
Battery Reserve Time:

Vertiv |Liebert
®ITA2™, 8-10kVA, 208/220V Three-Phase MBC User Manual | Rev. 0 | 02/18 | 1
TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
SAVE THESE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.0 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Operation Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.3 UPS Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.4 Maintenance Bypass Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.0 INSTALLATION AND OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 Mechanical Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2.1.1 Tower Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1.2 Rack Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2 Connecting Liebert ITA2 MBC Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
2.2.1 Selecting Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
2.2.2 Connecting Power Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
2.3 Single-Input Configuration—Factory Default . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
2.3.1 Connecting the Main Input Cables-Single Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
2.3.2 Connecting the Main Output Cables-Single Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
2.3.3 Cable Connections from the Liebert ITA2 MBC to the UPS—Single-Input . . . . . . . . . . . . . . . . . . . . . . . . . . .13
2.4 Dual-Input Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
2.4.1 Dual-Input Configuration—Main Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.4.2 Dual-Input Configuration—Rectifier Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.4.3 Dual-Input Configuration—Bypass Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.4.4 Dual-Input Configuration—Main Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
2.4.5 Cable Connections from the Liebert ITA2 MBC to the UPS—Dual-Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
2.5 Connect the Communication Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
3.0 POD ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
3.1 Installing the POD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
4.0 OPERATING THE LIEBERT ITA2 MBC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.1 Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.2 Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.3 Transfer UPS from Normal Mode to Maintenance Bypass Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.4 Transfer UPS from Maintenance Bypass Mode to Normal Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.0 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Vertiv |Liebert
®ITA2™, 8-10kVA, 208/220V Three-Phase MBC User Manual | Rev. 0 | 02/18 | 2
FIGURES
Figure 1 Appearance of Liebert ITA2 MBC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Figure 2 Front panel of Liebert ITA2 MBC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Figure 3 Rear panel of the single POD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Figure 4 Power distribution area of Liebert ITA2 MBC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Figure 5 Operating principle of Liebert ITA2 MBC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 6 UPS mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 7 Maintenance bypass mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Figure 8 Connecting the support base with support base extension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Figure 9 Liebert ITA2 MBC, UPS and battery module Installation complete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 10 Installing brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 11 Guide rail orientation for installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Figure 12 Installing the left guide rail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Figure 13 Guide rail installation complete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 14 Installing the Liebert ITA2 MBC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 15 System installation layout—rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 16 Liebert ITA2 MBC cable connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Figure 17 Liebert ITA2 UPS cable connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Figure 18 Dry contact ports on Liebert ITA2 MBC and UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 19 Removing POD cover panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Figure 20 Connecting PP75 terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Figure 21 Angle the POD for installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Figure 22 Front panel of Liebert ITA2 MBC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
TABLES
Table 1 GLOSSARY OF SYMBOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Table 2 Liebert ITA2 MBC currents and cables—User and UPS rectifier input . . . . . . . . . . . . . . . . . . . . . . . . . .12
Table 3 Liebert ITA2 MBC currents and cables—User and UPS bypass input and output. . . . . . . . . . . . . . . .12
Table 4 Recommended lug sizes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Table 5 POD specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Table 6 Liebert ITA2 MBC specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table 7 Hazardous substances in Liebert ITA2 8kVA 208V and 10kVA 208V Liebert ITA2 MBC . . . . . . . . 22

Vertiv | Liebert®ITA2™, 8-10kVA, 208/220V Three-Phase MBC User Manual | Rev. 0 | 02/18 | 1
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important safety instructions about installing and operating the Liebert ITA2 MBC
(maintenance bypass cabinet). Read all safety, installation and operating instructions before beginning to install
or operate the Liebert ITA2 or the Liebert ITA2 MBC. Adhere to all warnings on the unit and in this manual. Follow
all operating and user instructions. Users must fully understand this equipment to install and operate it.
The Liebert ITA2 MBC is designed for commercial/industrial use only. It is not intended for use with life support
or other designated critical devices. Maximum load must not exceed that shown on the unit’s rating label. Install
and operate the Liebert ITA2 MBC only in a clean indoor environment, free of conductive contaminants,
moisture, flammable liquids, gases and corrosive substances. The Liebert ITA2 MBC contains no
user-serviceable parts. Refer all faults to your local dealer, local Vertiv representative or Vertiv Services.
The Liebert ITA2 UPS system with Liebert ITA2 MBC is designed for use on a properly earthed (grounded),
208/220V AC supply. The system must be installed only by properly trained and qualified personnel. A qualified
electrician must review and approve customer-supplied wiring, circuit breakers and intended loads and verify
correct input, output and earth connections to ensure compliance with the technical standards and local
electrical codes.
WARNING
Risk of electrical shock and high short circuit current. Can cause injury or death.
The following precautions must be observed before replacing the battery pack:
• Wear rubber gloves and boots
• Remove rings, watches and other metal objects.
• Use tools with insulated handles.
• Do not lay tools or other metal objects on the batteries.
• If the battery kit is damaged in any way or shows signs of leakage, contact your local Vertiv
representative immediately.
• Do not dispose of batteries in a fire. The batteries may explode.
• Handle, transport and recycle batteries in accordance with local regulations.
WARNING
Risk of electrical shock, fire and high short circuit current. Can cause injury or death.
The Liebert ITA2 MBC has been designed and manufactured to ensure personal safety, but improper use
can result in electrical shock or fire. To ensure safety, observe the following precautions:
• Turn Off and unplug the Liebert ITA2 MBC before cleaning it.
• Clean the unit with a dry cloth. Do not use liquid or aerosol cleaners.
• Never block or insert any objects into the ventilation holes or other openings of the Liebert ITA2 MBC.
• Do not place the Liebert ITA2 MBC power cord where it might be damaged.
WARNING
Risk of exposure to hazardous chemical.
This product contains a chemical known to the State of California to cause cancer and birth defects or
other reproductive harm.

Vertiv | Liebert®ITA2™, 8-10kVA, 208/220V Three-Phase MBC User Manual | Rev. 0 | 02/18 | 2
ELECTROMAGNETIC COMPATIBILITY—The Liebert ITA2 MBC complies with the limits of Category C2,
pursuant to IEC/EN/AS 62040-2 and for a Class A digital device, pursuant to Part 15 Subpart B of FCC rules.
Operation is subject to the following conditions:
• The output cables must be no longer than 32ft (10m).
• This device must not cause harmful electromagnetic 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 ITA2 MBC complies with the requirements of EMC Directive 2004/108/EC and the published
technical standards. Continued compliance requires installation in accordance with these instructions and use of
accessories approved by Vertiv.
NOTICE
This is a Category C2 UPS product. In a residential environment, this product may cause radio interference, in which case
the user may be required to take additional measures.
Operate the unit in an indoor environment only in an ambient temperature range of 32-104°F (0-40°C). Install it in a clean
environment, free from moisture, flammable liquids, gases and corrosive substances.
This Liebert ITA2 MBC contains no user-serviceable parts except the internal battery pack. The unit’s On/Off push
buttons do not electrically isolate internal parts. Under no circumstances attempt to gain access internally, due to the risk
of electric shock or burn.
Do not continue to use the Liebert ITA2 MBC if the front panel indications are not in accordance with these operating
instructions or the performance alters in use. Refer all faults to your Vertiv representative or Vertiv Services.
Servicing of batteries must be performed or supervised by properly trained and qualified personnel knowledgeable of
batteries and the required precautions. Keep unauthorized personnel away from the batteries. Proper disposal of batteries
is required. Refer to your local laws and regulations for disposal requirements.
Never block or insert any object into the ventilation holes or other openings.
NOTICE
This product uses components that are dangerous for the environment, such as electronic
cards and other electronic components. Any component that is removed must be taken to
specialized collection and disposal centers. If this unit must be dismantled, this must be
done by a specialized center for collection and disposal of electric and electrical appliances
or other dangerous substances.
This product has been supplied from an environmentally aware manufacturer that complies
with the Waste Electrical and Electronic Equipment (WEEE) Directive 2012/19/EU.
Please be environmentally responsible and recycle this product through your recycling
facility at its end of life. Do not dispose of this product as unsorted municipal waste. Follow
local municipal waste ordinances for proper disposal provisions to reduce the
environmental impact of WEEE.
The “crossed-out wheelie bin symbol” is placed on this product to encourage you to recycle
whenever possible.
DO NOT CONNECT equipment that could overload the UPS or demand DC current from the Liebert ITA2 MBC,
for example: electric drills, vacuum cleaners, laser printers, hair dryers or any appliance using half-wave
rectification.
Storing magnetic media on top of the Liebert ITA2 MBC may result in data loss or corruption.
Information for the Protection of the Environment
UPS Servicing—This unit makes use of components dangerous for the environment (electronic cards,
electronic components). The components removed must be taken to specialized collection and disposal centers.
Notice to European Union Customers: Disposal of Old Appliances—This product has been supplied from an
environmentally aware manufacturer that complies with the Waste Electrical and Electronic Equipment (WEEE)
Directive 2002/96/CE.

Vertiv | Liebert®ITA2™, 8-10kVA, 208/220V Three-Phase MBC User Manual | Rev. 0 | 02/18 | 3
The symbol at right is placed on this product to encourage recycling wherever
possible. Recycle this product through a recycling facility at the end of its service
life. Do not dispose of this product as unsorted municipal waste.
Follow local municipal waste ordinances for proper disposal provisions to reduce
the environmental impact of waste electrical and electronic equipment (WEEE).
Table 1 GLOSSARY OF SYMBOLS
Risk of electrical shock
Indicates caution followed by important instructions
AC input
AC output
Consult the manual
Recycle
Equipment grounding conductor
Bonded to ground
AC voltage
!
i
R

Vertiv | Liebert®ITA2™, 8-10kVA, 208/220V Three-Phase MBC User Manual | Rev. 0 | 02/18 | 4
1.0 INTRODUCTION
The Liebert ITA2 MBC is an option that allows isolating the UPS power module while maintaining power to the
connected load.
This chapter details appearance, components and operation modes of the Liebert ITA2 MBC (maintenance
bypass cabinet). Table 6 details the unit’s specifications.
1.1 Components
The appearance of the Liebert ITA2 MBC is shown in Figure 1.
Figure 1 Appearance of Liebert ITA2 MBC
Removing the plastic bezel reveals front panel of the Liebert ITA2 MBC, as shown in Figure 2.
Figure 2 Front panel of Liebert ITA2 MBC
Figure 3 shows the rear panel of the Liebert ITA2 MBC.
1. Rectifier Input Breaker 2. Maintenance Isolation Breaker 3. Maintenance Bypass Breaker Interlock
4. Maintenance Bypass Breaker 5. Bypass Isolation Breaker Labels not shown.
1
2
1. Plastic Bezel
2. Rear Panel
43
5
2
1

Vertiv | Liebert®ITA2™, 8-10kVA, 208/220V Three-Phase MBC User Manual | Rev. 0 | 02/18 | 5
Figure 3 Rear panel of the single POD
Removing the conduit box reveals the Liebert ITA2 MBC’s power distribution area, shown in Figure 4.
Figure 4 Power distribution area of Liebert ITA2 MBC
1. POD Port Cover 2. Dry Contact Port 3. Cable Entry Knockouts on Conduit Box
1. Main Input Terminal Blocks 2. PE: Ground 3. UPS Input Terminal Blocks 4. UPS Output Terminal Blocks
5. Main Output Terminal Blocks 6. rA: Rectifier Input A 7. bA: Bypass Input A 8. rB: Rectifier Input B
9. bB: Bypass Input B 10. rC: Rectifier Input C 11. bC: Bypass Input C 12. N: Neutral
13. A: Output Phase A 14. B: Output Phase B 15. C: Output Phase C 16. N: Neutral
NOTE
Copper shorting bars are factory-linked between rA and bA; rB and bB; rC and bC; and N.
3
2
11
13
6 7 8 9 10 11 12 11 10 9 8 7 6
151413 131415
45
12 12 12
2
1616

Vertiv | Liebert®ITA2™, 8-10kVA, 208/220V Three-Phase MBC User Manual | Rev. 0 | 02/18 | 6
1.2 Operation Modes
The operating principle of the Liebert ITA2 MBC is shown in Figure 5.
Figure 5 Operating principle of Liebert ITA2 MBC
Two operation modes are available:
•UPSMode
• Maintenance Bypass Mode.
1.3 UPS Mode
See Figure 6 for details.
Figure 6 UPS mode
Under UPS mode, the UPS can provide continuous, high quality AC power.
1. Bypass Input 2. Bypass Isolation Breaker 3. Maintenance Bypass Breaker
4. Maintenance Isolation Breaker 5. Output 6. Liebert ITA2 MBC
7. Rectifier Input Breaker 8. Main Input 9. Liebert ITA2 UPS
1. AC Input 2. Liebert ITA2 MBC 3. To Load 4. Liebert ITA2 UPS
1
2
3
4
5
9
7
6
8
123
4

Vertiv | Liebert®ITA2™, 8-10kVA, 208/220V Three-Phase MBC User Manual | Rev. 0 | 02/18 | 7
1.4 Maintenance Bypass Mode
See Figure 7 for details.
Figure 7 Maintenance bypass mode
In maintenance bypass mode, the UPS is bypassed and the load is powered via the maintenance bypass breaker.
1. AC Input 2. Liebert ITA2 MBC 3. To Load 4. Liebert ITA2 UPS
123
4

Vertiv | Liebert®ITA2™, 8-10kVA, 208/220V Three-Phase MBC User Manual | Rev. 0 | 02/18 | 8
2.0 INSTALLATION AND OPERATION
This chapter introduces the mechanical installation, cable connection and commissioning of the Liebert ITA2
MBC.
2.1 Mechanical Installation
The Liebert ITA2 MBC may be installed in either a tower or rack configuration.
Prepare the tools: Phillips screwdriver, adjustable wrench, torque wrench.
2.1.1 Tower Installation
To install the UPS:
1. Take out the support base extension from the accessories
2. Assemble a pair of support bases and a support base extension (accessory) together through the fastenings, as shown in
Figure 8.
3. Place the assembly where the UPS will be installed.
Figure 8 Connecting the support base with support base extension
4. Place the Liebert ITA2 MBC, UPS and battery modules on the support bases and support base extensions, as shown in
Figure 9.
NOTE
Only Vertiv-authorized personnel should install and operate the Liebert ITA2 MBC.
1. Support Base 2. Fasteners 3. Support Base Extensions
2
3
1
1

Vertiv | Liebert®ITA2™, 8-10kVA, 208/220V Three-Phase MBC User Manual | Rev. 0 | 02/18 | 9
Figure 9 Liebert ITA2 MBC, UPS and battery module Installation complete
2.1.2 Rack Installation
NOTICE
Risk of improper transport. Can cause property damage.
Do not lift or carry the Liebert ITA2 UPS or MBC with the brackets. They are intended to support the units in the rack.
Using them to lift the unit may cause them to break.
1. Use M4 × 10 screws (12PCS) to attach two brackets to the Liebert ITA2 MBC front panel, one on each side as shown in
Figure 10.
Figure 10 Installing brackets
2. Install the guide rails.
a. Take out the guide rails (one left guide rail and one right guide rail), guide rail screws and panel screws from the
package.
b. Distinguish the left guide rail and the right guide rail according to Figure 11, and confirm their retractable function.
1. Liebert ITA2 MBC 2. Liebert ITA2 UPS 3. Liebert ITA2 Battery Cabinets, 2 4. Support Base
1. M4*10 Screws, 12 2. Bracket, 2
1
2
3
4
2
1
2

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Figure 11 Guide rail orientation for installation
c. Adjust the length of the guide rail based on the dimensions of the rack.
d. Align the installation holes of the guide rail with the square holes of the rack.
e. Attach the guide rail on the rack through the provided guide rail screws.
Eight guide rail screws are provided; each guide rail requires four guide rail screws, as shown in Figure 12.
Figure 12 Installing the left guide rail
The guide rail installation is finished, as shown in Figure 13.
1. Left guide rail 2. Right guide rail (Flanges point to outside of rack.)
1. Guide Rail (left rail shown) 2. Guide Rail Screws, 4, Phillips 3. Guide Rail Base Support 4. Square Holes
NOTE
The guide rail base support must be nearer the front of the rack.
Each end of one guide rail has six installation holes. Vertiv recommends using the top and bottom installation
holes (from top to bottom, installation Hole 1 and installation Hole 4).
Do not use the two installation holes in the middle when attaching the guide rail. The middle holes are intended
to secure the Liebert ITA2 MBC once it is installed on the rack rails.
1
2
2
1
3
4

Vertiv | Liebert®ITA2™, 8-10kVA, 208/220V Three-Phase MBC User Manual | Rev. 0 | 02/18 | 11
Figure 13 Guide rail installation complete
3. Place the Liebert ITA2 MBC on the guide rails of the rack, and push it completely into the rack.
4. Use four panel screws (M6 × 16) to attach the Liebert ITA2 MBC on the rack through the brackets, as shown in Figure 14.
Figure 14 Installing the Liebert ITA2 MBC
Figure 15 System installation layout—rack
NOTE
When the Liebert ITA2 MBC is installed with battery modules and UPS’s, the battery modules must be installed
at the bottom, the UPS’s in the middle and the Liebert ITA2 MBC at the top to facilitate cable connection and
operation. See Figure 15.
1. Liebert ITA2 MBC 2. Liebert ITA2 UPS 3. Batteries, 2
1
2
3

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2.2 Connecting Liebert ITA2 MBC Cables
2.2.1 Selecting Cables
I/O cables and signal cables are required for connection. When connecting the cables, you should follow the local
wiring regulations, take the environment situation into account.
The maximum current in different operating modes and the recommended power cables and plugs are listed in
Tables 2 through 4.
2.2.2 Connecting Power Cables
2.3 Single-Input Configuration—Factory Default
Remove the conduit box from the Liebert ITA2 MBC and open the knockout hole, route cables through the
conduit, and then connect them to terminal block of the Liebert ITA2 MBC. The conduit size and wiring method
must be in accordance with all local, regional and national codes and regulations, including NEC ANSI/NFPA 70.
NOTE
Before connecting the cables between the Liebert ITA2 MBC and UPS, make sure that all the circuit breakers on
the Liebert ITA2 MBC front panel are open. Ensure that the feeder breakers are open and locked and tagged to
prevent inadvertent operation by unauthorized personnel.
Table 2 Liebert ITA2 MBC currents and cables—User and UPS rectifier input
Unit
Rating
Maximum Input
Current, A
75°C THW Copper
Wire (Phase)
* Number of Cables per Phase: 1
75°C THW Copper
Wire (Neutral)
* Number of Cables: 1
75°C THW Copper
Wire (Ground)
* Number of Cables: 1
8KVA 24 8AWG 8AWG 10AWG
10KVA 37 6AWG 6AWG 10AWG
Table 3 Liebert ITA2 MBC currents and cables—User and UPS bypass input and output
Unit
Rating
Maximum Input
Current (A)
75°C THW Copper
Wire (Phase)
75°C THW Copper
Wire (Neutral)
75°C THW Copper
Wire (Ground)
8KVA 23 10AWG 10AWG 10AWG
10KVA 28 8AWG 8AWG 10AWG
Table 4 Recommended lug sizes
Cable Size, AWG T&B Lug P/N
4RF4-14
6RE6-14
8RD8-14
10 RC10-14
NOTE
The wire size range for Liebert ITA2 MBC terminal blocks: Max. 4AWG, min. 14AWG.
Recommended torque value for phase terminal block: 35 lbf.in of 4-6 AWG; 25 lbf.in of 8 AWG; 20 lbf.in of
10-14AWG; Recommended torque value for neutral and ground busbar: 43 lbf.in.
NOTE
The terminal blocks use captive screws for connecting phase cables. The neutral cables and ground cable are
attached to the copper bars with captive screws.

Vertiv | Liebert®ITA2™, 8-10kVA, 208/220V Three-Phase MBC User Manual | Rev. 0 | 02/18 | 13
2.3.1 Connecting the Main Input Cables-Single Input
Leave the shorting busbars installed on the main input terminals (see Figure 16, Item 1). Make these
connections:
• Input wiring Phase A to the shorting bar between Terminals 6-7
• Phase B to the shorting bar between Terminals 8-9
• Phase C to the shorting bar between Terminals 10-11.
• Input neutral to the shorting bar on Terminal 12
• Ground to the ground (PE) busbar.
2.3.2 Connecting the Main Output Cables-Single Input
The Liebert ITA2 MBC is capable of hardwire output in addition to output through the integrated distribution
ports. If hard wiring to a dedicated output distribution panel (see Figure 16 Item #5), make these connections:
• Phase A to Terminal 13
• Phase B to Terminal 14
• Phase C to Terminal 15
• Output neutral to busbar 16
• Safety ground to the ground (PE) busbar.
2.3.3 Cable Connections from the Liebert ITA2 MBC to the UPS—Single-Input
Single-Input Hardwire Connections—Rectifier Input from MBC
Remove the shorting busbars on the UPS input terminal block on Terminals 11, 12, and 13.
With the shorting busbars removed from the UPS input terminal block, on the MBC unit, refer to Figure 16, Item
#3 and Figure 17; make these connections:
• Phase A cable from MBC Terminal 6 to UPS Terminal 11
• Phase B cable from MBC Terminal 8 to UPS Terminal 13
• Phase C from MBC Terminal 10 to UPS Terminal 15
• Neutral from MBC Terminal 12 to UPS Terminal 17
• Safety ground cable from MBC ground (PE) busbar to UPS Ground Stud 10.
Hardwire Connections—UPS Bypass Input
With the shorting busbars removed on the UPS input terminal block. On the MBC unit, refer to Figure 16 Item #3
and Figure 17; make these connections:
• Phase A cable from MBC Terminal 7 to UPS Terminal 12
• Phase B cable from MBC Terminal 9 to UPS Terminal 14
• Phase C from MBC Terminal 11 to UPS Terminal 16
• Neutral from MBC Terminal 12 to UPS Terminal 18
• Safety ground cable from MBC ground (PE) busbar to UPS Ground Stud 10.
Single-Input Hardwire Connections—UPS Output to MBC
The Liebert ITA2 UPS has two output terminal block sections. One is always On and the other is programmable.
These instructions will list the always-on connections; the programmable connections will be inside parentheses.
On the MBC unit, using Figure 16 Item #4 and Figure 17, make these connections:
•PhaseAcablefromMBCTerminal 13 to UPS Terminal 4 (9)
• Phase B cable from MBC Terminal 14 to UPS Terminal 3 (8)
• Phase C cable from MBC Terminal 15 to UPS Terminal 2 (7)
• Neutral cable from MBC Terminal 16 to UPS Terminal 5 (6)
• Safety ground cable from MBC ground (PE) busbar to UPS Ground Stud 1.

Vertiv | Liebert®ITA2™, 8-10kVA, 208/220V Three-Phase MBC User Manual | Rev. 0 | 02/18 | 14
Figure 16 Liebert ITA2 MBC cable connections
2.4 Dual-Input Configuration
Remove the conduit box of Liebert ITA2 MBC and open the knockout hole, route cables through the conduit and
connect them to terminal block of Liebert ITA2 MBC. The conduit size and wiring method must be in accordance
with all local, regional and national codes and regulations, including NEC ANSI/NFPA 70.
2.4.1 Dual-Input Configuration—Main Input
A dual-input Liebert ITA2 UPS requires that both feeds be from the same source. For the main input to the
Liebert ITA2 MBC refer to Figure 16 Item #1, remove the shorting busbars between Terminals 6-7, 8-9 and 10-11.
2.4.2 Dual-Input Configuration—Rectifier Input
Make these connections:
• Input wiring Phase A cable to MBC Terminal 6
• Input wiring Phase B cable to MBC Terminal block 8
• Input wiring Phase C cable to MBC Terminal 10
• Input neutral cable to MBC Terminal 12
• Equipment ground cable to MBC ground (PE) busbar
2.4.3 Dual-Input Configuration—Bypass Input
Make these connections:
• Input bypass wiring Phase A cable to MBC Terminal 7
• Input bypass wiring Phase B cable to MBC Terminal block 9
• Input bypass wiring Phase C cable to MBC Terminal 11
• Input bypass neutral cable to MBC Terminal 12
• Equipment ground cable to MBC ground (PE) busbar
1. Main Input Terminal Blocks 2. PE: Ground 3. UPS Input Terminal Blocks 4. UPS Output Terminal Blocks
5. Main Output Terminal Blocks 6. rA: Rectifier Input A 7. bA: Bypass Input A 8. rB: Rectifier Input B
9. bB: Bypass Input B 10. rC: Rectifier Input C 11. bC: Bypass Input C 12. N: Neutral
13. A: Output Phase A 14. B: Output Phase B 15. C: Output Phase C 16. N: Neutral
NOTE
Copper shorting bars are factory-linked between rA and bA; rB and bB; rC and bC; and N.
1 3
6 7 8 9 10 11 12 11 10 9 8 7 6
151413 131415
45
12 12 12
2
1616

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2.4.4 Dual-Input Configuration—Main Output
The Liebert ITA2 MBC is capable of hardwire output in addition to output from the integrated distribution ports.
If hard wiring to a dedicated output distribution panel (see Figure 16 Item #5), make these connections:
• Phase A to terminal 13
• Phase B to terminal 14
• Phase C to terminal 15
• Output neutral to busbar 16
• Safety ground to the ground (PE) bus bar
2.4.5 Cable Connections from the Liebert ITA2 MBC to the UPS—Dual-Input
Hardwire Connections—UPS Rectifier Input
Remove the shorting busbars on the UPS input terminal block on Terminals 11, 12, and 13.
With the shorting busbars removed from the UPS input terminal block, on the MBC unit, refer to Figure 16, Item
#3 and Figure 17; make these connections:
• Phase A cable from MBC Terminal 6 to UPS Terminal 11
• Phase B cable from MBC Terminal 8 to UPS Terminal 13
• Phase C from MBC Terminal 10 to UPS Terminal 15
• Neutral from MBC Terminal 12 to UPS Terminal 17
• Safety ground cable from MBC ground (PE) busbar to UPS Ground Stud 10.
Hardwire Connections—UPS Bypass Input
Leave the shorting busbars in place on the UPS input terminal block. On the MBC unit, refer to Figure 16 Item #3
and Figure 17; make these connections:
• Phase A cable from MBC Terminal 7 to UPS Terminal 12
• Phase B cable from MBC Terminal 9 to UPS Terminal 14
• Phase C from MBC Terminal 11 to UPS Terminal 16
• Neutral from MBC Terminal 12 to UPS Terminal 18
• Safety ground cable from MBC ground (PE) busbar to UPS Ground Stud 10.
Hardwire Connections—UPS Output
The Liebert ITA2 UPS has two output terminal block sections. One is always On and the other is programmable.
These instructions will list the always-on connections; the programmable connections will be inside parentheses.
On the MBC unit, refer to Figure 16 Item #4 and Figure 17; make these connections:
•PhaseAcablefromMBCTerminal 13 to UPS Terminal 4 (9)
• Phase B cable from MBC Terminal 14 to UPS Terminal 3 (8)
• Phase C cable from MBC Terminal 15 to UPS Terminal 2 (7)
• Neutral cable from MBC Terminal 16 to UPS Terminal 5 (6)
• Safety ground cable from MBC ground (PE) busbar to UPS Ground Stud 1.

Vertiv | Liebert®ITA2™, 8-10kVA, 208/220V Three-Phase MBC User Manual | Rev. 0 | 02/18 | 16
Figure 17 Liebert ITA2 UPS cable connections
1. PE: Output PE Terminal 2. C: AC Output Terminal Phase C 3. B: AC Output Terminal Phase B
4. A: AC Output Terminal Phase A 5. N: Output Neutral Line Terminal 6. N: Output Neutral Line Terminal
7. pC: Programmable AC Output
Terminal Phase C
8. pB: Programmable AC Output Terminal Phase B 9. pA: Programmable AC Output
Terminal Phase A
10. PE: Input PE Terminal. 11. rA: AC Rectifier Input Phase A 12. bA: Bypass Input Phase A
13. rB: AC Rectifier Input Phase B 14. bB: Bypass Input Phase B 15. rC: AC Rectifier Input Phase C
16. bC: Bypass Input Phase C 17. N: Output Neutral Line Terminal 18. N: Output Neutral Line Terminal
19. BAT+: Battery Positive Terminal 20. BATN: Battery Neutral Terminal 21. BAT-: Battery Negative Terminal
22. Battery PE Terminal
NOTE
All the copper jumper bars relating to the procedures above are accessories.
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