APC InfraStruXure Power Supply Specifications download pdf (Page 8)

2 InfraStruXure 20kW System—Installation, Operation, and Maintenance

Warnings

Receiving/moving

Do not tilt the InfraStruXure 20kW System greater than 45° from its vertical axis. Never lay the

InfraStruXure 20kW System on its side.

Installation/maintenance

Only a certified electrician can:

• Connect the InfraStruXure 20kW System to utility

• Connect a switch to the EPO interface on the InfraStruXure 20kW System

• Install a customer-specified, hard-wired power cable

Only a certified electrician or an APC Field Service Engineer can perform maintenance of the

InfraStruXure 20kW System.

When connecting the InfraStruXure 20kW System to utility, a 90A circuit breaker must be installed

to protect the InfraStruXure 20kW System against over-current. The circuit breaker must have a

shunt trip.

Maintenance performed while the system is receiving input power

APC does not recommend maintenance while the system is receiving input power. However, due to

the critical nature of data center loads, maintenance while the system is receiving input power may

occur. If you must perform maintenance while the system is receiving input power, observe the

following precautions to reduce the risk of electric shock:

1. Never work alone.

2. Perform the maintenance only if you are a certified electrician who is trained in the hazards of

live electrical maintenance.

3. Know the procedure for disconnecting electricity to the system and the data center in case of an

emergency.

4. Wear appropriate personal protective equipment.

5. Use double-insulated tools.

6. Always follow local and site regulations when working on the system.

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APC InfraStruXure Power Supply Specifications Page 8