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Help Relay Connection

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MrYu

New Member
I bought a relay, but I don't know how to hook it up. it's a 30A relay..
i'm a littlebit confuse the relay have 5 pins but in the diagram it's only says 4 Lead Relay.



 
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MrYu

New Member
Am i right connecting the wires in the relay and putting the voltage source(12v) in "B" or in the "A"(is not inverted)?

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throbscottle

Well-Known Member
The label in your second photo that says "NC" (which means "not connected) is incorrect, because it's actually another connection to "Pole". You can leave it hanging - but remember it will be connected to the bulb in your circuit, or you can connect it to "pole", or you can use it instead of "pole" if it makes the wiring easier.

Yes, the coil connections, A and B are where you connect the 12V - they can be either way round with regards to + and -.
 

panic mode

Well-Known Member
how about this:
A1, A2 = Coil Connections
COM = "Common or "working contact"
NO = Normally Open
NC = Normally Closed
 

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throbscottle

Well-Known Member
Good point - I never thought of that. But the O/P's relay only has 5 connections - the "form A" style. Photo's have disappeared though.
 

panic mode

Well-Known Member
the link i posted shows version with form-A contact as well. it is the same as in post 6 but with no NC
 
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