Electrical Specifications

Grounding

The site building shall provide a safety ground/protective earth ground to all cabinets. A chassis ground point is provided on the server rear panel. (See Figure 2-2 “Chassis Ground Lug”.)

Figure 2-2 Chassis Ground Lug

Install a PE (protective earthing) 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 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.

Disconnect Device and Branch Circuit Protection

	WARNING! Failure to provide an appropriate disconnect device and branch circuit protection may endanger service personnel. Serious injury and equipment damage may result if this warning is not observed.

A suitable disconnect device must be provided as part of the building installation. The purpose of the disconnect device is to provide an easy and accessible means for removing power from the product for servicing.

A suitable branch circuit protection device must be provided as part of the building installation. The purpose of branch circuit protection is to limit current in the case of a fault.

The disconnect device may also provide branch circuit protection (for example, a circuit breaker). Alternately, separate disconnect and branch circuit protection devices (fuses and a disconnect switch) may be employed.

The devices must be rated based on the plate rating of the product in accordance with the applicable local codes and specific customer requirements. Branch circuit protection is commonly selected based on 125% of the product input rating. Such derating is to avoid nuisance tripping due to load surges or power transients and to meet code requirements. Applicable codes and customer requirements will vary.

System Power Specifications

Table 2-3 “System Power Specifications” and Table 2-4 “System Power Requirements” list the power specifications for the hp Integrity cx2600 Server. These tables provide information to help determine the amount of power needed for your computer room.