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In-Fixture Relay Switch
[IRLS]

Specifications

IES FILES

OVERVIEW
The emergency luminaire power is derived from a 24 hour
central emergency power source. The local utility power
company normally supplies the power through a UL1008
Transfer Switch or equal, but during a utility power failure, the
transfer switch automatically switches to the emergency power
source.

The room switch turns on and off both regular and emergency
luminaires simultaneously. This is accomplished by having the
room switch leg power activate the In-Fixture Relay, IRLS.
Wire input #1 or #2 and neutral are connected internally to
a sensing circuit. During a power interruption on the sensing
input, this circuit causes contact X to drop into a N.C. position
and turns on the emergency load(s). Review wiring diagram for
details.

 
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