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Chapter 2
Safety Warnings
This manual contains important instructions that should be followed during installation and
maintenance of the UPS and batteries. Read all instructions before operating the equipment and save
this manual for future reference.
The UPS is designed for industrial or computer room applications, and contains safety shields behind
the door and front panels. However, the UPS is a sophisticated power system and should be handled with
appropriate care.
This UPS contains LETHAL VOLTAGES. All repairs and service should be performed by AUTHORISED
SERVICE PERSONNEL ONLY. There are NO USER SERVICEABLE PARTS inside the UPS.
• The UPS is suitable for mounting on concrete or other non-combustible surfaces only.
• The UPS is powered by its own energy source (batteries). The output terminals may carry live
voltage even when the UPS is disconnected from an AC source.
• To reduce the risk of fire or electric shock, install this UPS in a temperature and humidity controlled,
indoor environment, free of conductive contaminants. Ambient temperature must not exceed 25°C
(104°F). Do not operate near water or excessive humidity (95% maximum). The system is not intended
for outdoor use.
• As a result of the connected loads high leakage current is possible. Connection to earth ground is
required for safety and proper product operation. Do not check UPS operation by any action that
includes removal of the earth (ground) connection with loads attached.
• Ensure all power is disconnected before performing installation or service.
• Batteries can present a risk of electrical shock or burn from high short-circuits current. The following
precautions should be observed: 1) Remove watches, rings, or other metal objects;
2) Use tools with insulated handles; 3) Do not lay tools or metal parts on top of batteries; 4) Wear
rubber gloves and boots.
• ELECTRIC ENERGY HAZARD. Do not attempt to alter any UPS or battery wiring or connectors.
Attempting to alter wiring can cause injury.
• Do not open or mutilate batteries. Released electrolyte is harmful to the skin and eyes. It may be toxic.
• The UPS unit is not suitable for IT or corner-earthed power distribution systems.
• Installation or servicing should be performed by qualified service personnel knowledgeable of UPS
and battery systems, and required precautions. Keep unauthorized personnel away from equipment.
Consider all warnings, cautions, and notes before installing or servicing equipment. DO NOT
DISCONNECT the batteries while the UPS is in Battery mode.
• See installation instructions before connecting to the supply.
• Risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries according to
the instructions.
• Replace batteries with the same number and type of batteries as originally installed with the UPS.
• Disconnect the charging source prior to connecting or disconnecting terminals.
• Determine if the battery is inadvertently grounded. If it is, remove the source of the ground.
Contacting any part of a grounded battery can cause a risk of electric shock. An electric shock is less
2-1
IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS
Eaton 93E MK2 UPS (10-40kVA, 380/400/415V) Installation and Operation
DANGER
WARNING
CAUTION
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