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4 Installing a Power Distribution Unit

This chapter provides installation instructions for qualified personnel for installing an HP Basic PDU.

Safety and Regulatory Compliance

For safety, environmental, and regulatory information, see Safety and Compliance Information for

Server, Storage, Power, Networking, and Rack Products, available at the HP website (http://

www.hp.com/support/Safety-Compliance-EnterpriseProducts).

Important Safety Information

Before installation, read the Important Safety Information that ships with the product you are

connecting. This document is also available on the HP website (http://www.hp.com/support/

importantsafetyinformation).

This PDU is intended only for ITE loads with linear/PFC input current. If non-linear loads are

connected, the nameplate current rating of the PDU must be reduced by a factor of 0.8.

WARNING! A risk of personal injury from electric shock and hazardous energy levels exist. The

installation of options and routine maintenance and service of this product must be performed by

individuals who are knowledgeable about the procedures, precautions, and hazards associated

with AC power products.

Follow these safety precautions when connecting multiple hardware components to power sources.

WARNING! To reduce the risk of fire, electric shock and damage to power sources.

• Connect only to a circuit providing branch circuit overcurrent protection of appropriate current

rating.

• Connect the input power cord into a grounded (earthed) electrical outlet that is located near

the equipment and is easily accessible.

• Be sure all circuit breakers are in the off position before connecting input power.

• Be sure that the load products connected to the HP PDU are adjusted for, or otherwise capable

of operation from the same line voltage supplying the PDU. Failure to verify the voltage can

lead to severe equipment damage.

• Do not overload the PDU. The total input current rating of all equipment connected to each

output cannot exceed the total output rating marked on the PDU.

• Use only the hardware provided to install the PDU.

WARNING! To reduce the risk of personal injury from high-leakage current, verify earth connection

before connecting the power supply.

The summation of input power for multiple pieces of information technology equipment through

the use of power products can result in high-leakage currents.

If the total system leakage current for a system of components exceeds 3.5 mA:

• The use of a detachable input power cord is prohibited.

• The input power cord must be securely attached, and it should be connected to the AC mains

by hardwiring or through the use of a non-residential, industrial-styled plug that maintains

positive earth connection.

• If the total system leakage current through the ground conductor exceeds 5% of the input

current per line under normal operating conditions, the system loads should be divided among

multiple power connections.

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