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Battery Cabinet Precautions
The following warning applies to all battery cabinets supplied with UPS systems. Additional
warnings and cautions applicable to battery cabinets may be found in 4.0 - Battery Installation.
WARNING
Risk of electric shock. Can cause injury, property damage and death.
Special care should be taken when working with the batteries associated with this equipment.
Batteries are always live. Battery terminal voltage will exceed 480VDC and is potentially
lethal.
In addition to the hazard of electric shock, gas produced by batteries can be explosive and
sulfuric acid can cause severe burns.
Batteries should be installed, serviced and replaced only by properly trained and qualified
service personnel trained in safe battery handling methods and who have the correct PPE
(Personal Protection Equipment) and tools.
The following precautions should be observed when working with the batteries:
• Eye protection should be worn to prevent injury from electrical arcs.
• Remove rings, watches and all other metal objects.
• Use only tools with insulated handles.
• Wear rubber gloves and boots.
• When replacing batteries, replace them with the same type and number of batteries or bat-
tery packs.
• Do not dispose of batteries in a fire. The batteries may explode.
• Do not open or mutilate batteries. Released electrolyte is harmful to the skin and eyes. It is
toxic.
• Never lay metal objects of any type on top of the batteries.
• Disconnect the charging source before connecting or disconnecting battery terminals.
• Determine whether the battery is grounded. If the battery is grounded, remove source of
the ground. Contact with any part of a grounded battery can result in electrical shock. The
likelihood of such shock can be reduced if such grounds are removed during installation and
maintenance.
!
WARNING
Risk of heavy unit tipping. Can cause property damage, injury and death.
Internal battery strapping must be verified by manufacturer prior to moving a battery cabinet
(after initial installation).
• Battery cabinets contain non-spillable batteries.
• Keep units upright.
• Do not stack.
• Do not tilt.
Failure to heed this warning could result in smoke, fire or electric hazard.
Call 1-800-LIEBERT before moving battery cabinets (after initial installation).
!
WARNING
Risk of electric shock. Can cause injury and death.
The Liebert
®
NX’s internal batteries are connected and energized even if the UPS is turned
Off. To minimize the risk of injury, a properly trained and qualified service person should
disconnect the batteries before any maintenance is performed on the unit.
Servicing of batteries should be performed or supervised only by properly trained and
qualified personnel knowledgeable about batteries and the required precautions.
When replacing batteries, replace with the same manufacturer and type, or equivalent. See
your local Emerson
®
representative for a list of approved batteries.