Control panel wiring, Over-current protection, Control panel wiring over-current protection – Rockwell Automation 1748 DataSite Configured Panel Installation Instructions User Manual

Page 19

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Publication 1748-IN001B-EN-P - May 2009

Install and Wire the Panel 19

Control Panel Wiring

Wiring details for the control panel can be found on the schematics shipped
with your panel. The selector switch on the door serves as a disconnecting
device to energize or de-energize power to the unit.

When installing field devices, over-current protection must be considered.
Refer to NEC 2005 article 240 regarding the use of over-current protection for
field installed devices.

Over-current Protection

Over-current protection is provided by the fuses already provided as part of
the panel assembly.

IMPORTANT

Due to the limited energy storage of the DataSite configured
panel, installation of field devices will affect the number of
hours of backup energy the panel may have.

IMPORTANT

Replacement or removal of these fuses must be done in a safe
environment free of any combustible substances and by
certified field maintenance personnel as described in
NEC/NFPA guidelines.

Replace over-current protection fuses with class CC, 250V type
ATQR or equivalent fuses only.

ATTENTION

Replacement of fuses with any other type may result in damage
to the DataSite configured panel.

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