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Old 01-23-2017, 06:40 PM   #1
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Electrical question


I need to hook up a flashing strobe light that works with my smoke detectator. I have the typical 3 wire configuration in the smoke junction box, a black, white, red, ( hot, neutral, interconnect wire ). I had to purchase a Kiddie relay power module model # SM120X as well as the strobe light it is 120 volt. the strobe light has 2 terminals on the back and the relay has 7 wires coming from it. i am not sure which wires to use if you look up the relay on the internet it gives the wiring diagram in the instruction with it. i have the basic concept of wiring and just need to be steered in the right direction. Thanks

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Old 01-23-2017, 06:57 PM   #2
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Re: Electrical question


From http://www.utcccs-cdn.com/hvac/docs/...erGuide_EN.pdf

Connections on the Relay /Power Supply Module:
Black Wire AC Hot
White Wire AC Neutral
Red Wire Interconnect Signal
Blue Wire Common Contact
Yellow Wire Normally Closed Contact
Orange Wire Normally Open Contact
Gray Wire 9-Volt DC Output (5MA Max

Black and white are power in
Red connects to the smoke interconnect wire.
Also connect the relay common wire(blue) to the black power in.
Connect the flasher white to the other whites in the box.
Connect the flasher black to the orange normally open contact.

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Old 01-24-2017, 08:10 AM   #3
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Re: Electrical question


A relay is just an electrically operated switch!

So two of the wires would operate the relay.

And two or more other wires would be for what is being switched on or off.

Other names for a relay are solenoid (used in automotive field) and contactor (used in higher voltage applications).
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