Site Preparation Guide, Third Edition - HP 9000 rp8420 Server

Chapter 1

System Specifications

Electrical Specifications

This section provides electrical specifications for the HP 9000 rp8420 server.

Grounding

The site building shall provide a safety ground and protective earth for each AC service entrance to all

cabinets.

Install a protective earthing (PE) conductor that is identical in size, insulation material, and thickness to the

branch-circuit supply conductors. The PE conductor must be green with yellow stripes. The earthing

conductor described is to be connected from the unit to the building installation earth or, if supplied by a

separately derived system, at the supply transformer or motor-generator set grounding point.

Circuit Breaker

The Marked Electrical for the HP 9000 rp8420 server is 15 amps per line cord. The recommended circuit

breaker size is 20 amps for North America. For countries outside North America, consult your local electrical

authority having jurisdiction for the recommended circuit breaker size.

The HP 9000 rp8420 server contains four C20 power receptacles located at the bottom rear bulkhead. A

minimum of two power cords must be used to maintain normal operation of the HP 9000 rp8420 server. A

second set of two cords can be added to improve system availability by protecting, for example, against power

source failures or accidentally tripped circuit breakers. The HP 9000 rp8420 server can receive AC input from

two different AC power sources.

System AC Power Specifications

Power Cords

Table 1-3 lists the various power cables available for use with an HP 9000 rp8420 server system. Each power

cord is 15 feet (4.5m) in length with an IEC 60320-1 C19 female connector attached to one end.

Table 1-3 Power Cords

Part Number Description Where Used

8120-6895 Stripped end, 240 volt International—Other

8120-6897 Male IEC309, 240 volt International

8120-6903 Male NEMA L6-20, 240 volt North America/Japan

8121-0070 Male GB-1002, 240 volt China