Contents
Can I use a 12v relay for 120v?
Any automotive store will have a 12 Volt DC relay that has contacts rated to 300 VAC. Simply connection your controlling 12 V switch to the relay’s coil connection and then use the N.O. (normally open) contacts to break the hot side of your 120 VAC supply to the outlet.
How does a 120V relay work?
The relay is typically used to start (or slave) a secondary device like a booster or exhaust fan. A 120 VAC coil means that you apply 120 VAC to the coil contacts (black wiring) to energize the relay and close the switched contacts (red wiring).
Can a relay switch just the live 120VAC wire?
Yes, the relay would normally (but not always) switch just the live 120vac (hot) wire. It’s a pretty simple device, coil voltage (12v in this case) switches the load connection. It could be normally off (NO – the load circuit is open unless coil voltage closes it), or normally closed (NC – the load circuit is closed unless the coil forces it open).
How to control a 120 volt AC relay?
I would like some recommendations for a 12v control of a 120 volt ac circuit. I have a Midnite Classic CC and want to use Aux1 (in Diversion mode) to control a 120v relay that turns a 120v / 20 amp circuit on/off. The Classic will monitor the battery voltage and turn the relay on @ 13vdc and turn off @ 12.4vdc.
Can you use aux1 to control a 120V relay?
I have a Midnite Classic CC and want to use Aux1 (in Diversion mode) to control a 120v relay that turns a 120v / 20 amp circuit on/off. The Classic will monitor the battery voltage and turn the relay on @ 13vdc and turn off @ 12.4vdc. The 120V AC circuit is coming from my Magnasine inverter.
How does a relay box control high voltage?
The magic device at the center of these boxes is a relay. A relay is basically an electromagnetic switch, and it allows me to control a large amount of high voltage power (10A at 120V) using a tiny amount of low voltage power (~5 mA at 3.3V).