Question about Coleman Heating & Cooling
Typically if you want a circuit completed when energized you use C (Common) and NO
(normally open). This means that the contact will close when energized
and thus complete your circuit. However in some cases a relay is used to
stop current from flowing and when energized the contacts used are
C and NC (Normally Closed) meaning that the circuit is closed when the relay is off and
open when energized.
Other things to consider if "rigging a new circuit".
More precisely, what exactly are you going to accomplish:
Turn On a motor, or light
Turn Off a motor, or light
or complete a timing sequence,
Turn On A heater
Lock out a motor
Isolate a motor
A simple relay works just as ac fixer said but you had better make sure 2 things 1 your relay is not TOO HEAVY on the VA of the coil (and like he said is the correct voltage) AND 2 BE SURE YOU KNOW WHAT HP OR AMP DRAW your relay will be expected to hold while energized (or de-energized which ever the case may be).
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Posted on May 16, 2009
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Posted on Jan 02, 2017
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