APC Power Supply manual Installation/Maintenance, Input Voltage Circuit Breaker Size

Warnings

Installation/Maintenance

Only a certified electrician can do following:

•Connect the PDU to its power source

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

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

When connecting the PDU to utility, a circuit breaker must be installed to protect the PDU against short-circuit current. Determine the type of circuit breaker that you need to install:

Input Voltage Circuit Breaker Size

200V200A

415V100A

Maintenance performed while the PDU is receiving input power

APC does not recommend that you perform maintenance of the PDU while it is receiving input power. However, due to the critical nature of data center loads, this may occur. If you must perform maintenance while the PDU 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 installation.

3.Know the procedure for disconnecting electricity to the PDU 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 PDU.

Total power off procedure

1.Set the PDU Main Input to Off.

2.Set the upstream power source circuit breaker to Off.

Register equipment with the fire department

Follow local code ordinances and register all fire code-compliant equipment with the fire department.

2 InfraStruXure Site Planning, Installation, Start-Up