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Vertiv Liebert STS2 User Manual

Vertiv Liebert STS2
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Vertiv | Liebert® STS2/PDU
User Manual | Rev. 6 | 10/2017 1
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important instructions that should be followed during the installation and maintenance of
the Liebert Static Transfer Switch 2/Power Distribution Unit (Liebert STS2/PDU).
Read this manual thoroughly, paying special attention to the sections that apply to your installation, before
working with the Liebert STS2/PDU. Retain this manual for use by installing personnel.
Refer to 1.2.1 - Handling Considerations before attempting to move the unit.
NOTICE
Risk of damage from improper installation.
The input sources to the Liebert STS2/PDU must be grounded-wye sources. Input sources other than solidly grounded-
wye sources may cause damage to the switch.
Liebert neither recommends nor knowingly sells this product for use with life support or other FDA-designated
critical” devices.
The Liebert STS2/PDU is suitable for indoor use only.
The unit is designed to operate from solidly grounded AC power sources only. Provide input over-current
protection in accordance with the unit ratings. Wire and ground the unit according to national and local electrical
safety codes. All wiring should be installed by a properly trained and qualified electrician.
WARNING
Risk of electric shock. Can cause injury or death.
Before proceeding with installation, read all instructions, verify that all the parts are included and check
the nameplate to be sure the voltage matches available utility power.
This unit is supplied by more than one power source. The unit contains hazardous voltages if any of the
input sources are on, even when the unit is in bypass. To isolate the unit, turn off and lock out all input
power sources.
Verify that all input power sources are de-energized and locked out before making connections inside
unit.
Lethal voltages exist inside the unit during normal operation. Only qualified service personnel should
perform maintenance on the Liebert STS2/PDU.
Installation and operation must comply with all national and local laws and regulations.
WARNING
Risk of electric shock. Can cause injury or death.
Under typical operation and with all Liebert STS2/PDU doors closed, only normal safety precautions are
necessary. The area around the Liebert STS2/PDU should be kept free of puddles of water, excessive
moisture, flammable liquids, gases, corrosive substances and debris.
Only properly trained personnel wearing appropriate safety headgear, gloves, shoes and glasses should
perform maintenance on the Liebert STS2/PDU. When performing maintenance on any part of the
equipment under power, service personnel and test equipment should be located on rubber mats. Service
personnel should wear insulating shoes for isolation from direct contact with the floor.
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 summon help in case of an accident.

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Vertiv Liebert STS2 Specifications

General IconGeneral
BrandVertiv
ModelLiebert STS2
CategorySwitch
LanguageEnglish

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