Eaton APS6-400 Series, Installation And Operation Manual

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Access Power Solutions Installation Guide (APS6-400 Series)
10
Copyright © 2009-2010 Eaton Corporation. All Rights Reserved.
IPN 997-00012-53B December 2010
Warnings
This section contains important warnings. Read these warnings before installing or operating
Access Power Solutions dc power systems.

Electrical Safety

The case of the Access Power Solutions (APS6-400 Series) dc power system is a fire enclosure as specified
in UL 60950-1. The system can be installed in an enclosed cabinet or an open relay rack.

The dc power system may be powered from multiple ac sources. All power sources must be isolated
before internally servicing the equipment.

The dc power system must be connected to a suitable and readily accessible disconnect device(s).

The dc power system is not compatible with IT (Impedance Terra) ac supply. For advice see Worldwide
Support on page
101 .

A registered electrician (or suitably qualified person) must check the integrity of the installed cabling,
BEFORE the dc power system is powered up.

Tasks must be performed in the sequence documented in this guide.

Location and Environment

The APS must be installed in a Restricted Access Location (dedicated equipment rooms, equipment
closets, or similar) in accordance with the U.S. National Electric Code (NEC), ANSI/NFPA No. 70, and
according to the applicable local codes.

For ease of access and to maintain optimum system cooling, observe the clearances stated on page 22 .

Ensure the ambient temperature and humidity are within the ranges in the Specifications on page 70 .

Dust build-up within the APS may cause premature failure. In dusty environments filter the ventilation
air entering the equipment room. Ensure regular cleaning of the air filters.

Do not allow water or any foreign object to enter the APS. Do not place objects containing liquid on top of
or near the unit.

Reverse Polarity

Always check that the battery cables have been terminated to the correct system polarity BEFORE
connecting the batteries or closing the battery disconnect device. Connecting batteries to the dc power
system with incorrect system polarity will damage the rectifiers and void all warranty claims.

Hazardous Energy Levels

Rectifiers and batteries contain hazardous energy levels. Only personnel trained and experienced in dc
power systems are to service/maintain this equipment.

Always use insulated tools.

Do not short-circuit the live and common bus bars or cables.

Battery Current

In APSs without an internal battery disconnect LVD, either the total battery current must be less than
285A or the APS must be protected by an external battery LVD set to 43V or higher.

The short circuit current capability of the battery circuit connected to the battery input terminals must not
exceed 5,000A.