Vertiv Liebert ITA2, Liebert MBC, LIEBERT ITA2 MBC 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:

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 | 1

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 | 2

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 | 1

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 | 2

The symbol at right is placed on this product to encourage recycling wherever

!

i

R

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

Vertiv | Liebert® ITA2™, 8-10kVA, 208/220V Three-Phase MBC User Manual | Rev. 0 | 02/18 | 3

1.0 INTRODUCTION

1

2

1. Plastic Bezel

2. Rear Panel

4

3

5

2

1

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). Ta ble 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

1. Rectifier Input Breaker 2. Maintenance Isolation Breaker 3. Maintenance Bypass Breaker Interlock

4. Maintenance Bypass Breaker 5. Bypass Isolation Breaker

Labels not shown.

Figure 3 shows the rear panel of the Liebert ITA2 MBC.

Vertiv | Liebert® ITA2™, 8-10kVA, 208/220V Three-Phase MBC User Manual | Rev. 0 | 02/18 | 4

Figure 3 Rear panel of the single POD

3

2

1

1

1

3

6 7 8 9 10 11 12 11 10 9 8 7 6

151413 131415

45

12 12 12

2

1616

1. POD Port Cover 2. Dry Contact Port 3. Cable Entry Knockouts on Conduit Box

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. 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.

Vertiv | Liebert® ITA2™, 8-10kVA, 208/220V Three-Phase MBC User Manual | Rev. 0 | 02/18 | 5