Controlling line power with a 6V circuit using a relay.

AI Thread Summary
A user seeks a relay that operates on a 6V circuit but can handle 120V at 12A, preferring an inverted configuration where power to the coil disconnects the line. The discussion suggests that a solid-state relay or a double-pole double-throw (DPDT) relay could meet these requirements, as a single-pole double-throw (SPDT) relay may not suffice for controlling two independent circuits. Clarification on the user's specific needs and circuit diagrams would enhance the quality of responses. The importance of ensuring relay contacts are rated for the necessary voltage and current is emphasized. Overall, the conversation centers on finding the right relay type for the user's application.
fabiobollinge
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I need a sort of relay which takes only about 6V in the electromagnet, but can handle line current in the connector? It would also be preferable, not necessary, that it's inverted, so when there is power to the coil, the connector is disconnected, and when no power is in the coil, the connector is connected and 120 volts at roughly 12A flows through.

The only thing I found for this was a SPDT relay, which does not function as I would like.

Does such a thing exist? If not, what can I do to control a line power switch with a 6V circuit?
 
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Many relays have multiple contacts. They are labeled NO (normally open) and NC (normally closed)

When power is applied the NO contacts will close, the NC contacts will open.

Try looking for a NC solid state relay.
 
SPDT should do what you want. Is there a reason you think it would not?
 
Averagesupernova said:
SPDT should do what you want. Is there a reason you think it would not?

To me it seems like the SPDT only has 3 'legs', and can only be integrated into one circuit? I might be mislead by this, how would I use an SPDT with two independant circuits without having them connect with each other?
 
fabiobollinge said:
...I might be mislead by this, how would I use an SPDT with two independant circuits without having them connect with each other?

Thats information you never gave us at the start ;)

It really helps if you tell us exactly what you are trying to achieve, with circuit diagrams if possible etc.
That way you will get good direct answers to what you are enquiring about :)

OK so get a DPDT relay if you have 2 independant circuits you need to control
and make sure the relay contacts are rated for the voltage and current requirements !

Dave
 
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