rdodger
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| posted on 11/1/13 at 07:48 PM |
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Relay wiring
Evening all
Just a quick one
I have some relays in my donor loom (MX5) labeled COM, NO, COIL, COIL.
So easy enough but does it matter which coil goes to earth? When I put power to it quickly the relay clicked either way I did it.
So does it matter or will I have to test it properly?
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gremlin1234
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| posted on 11/1/13 at 08:31 PM |
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no - normal open
com - common
[nc] - normally closed
coils can /usually/ go either way, some can use ac too
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big-vee-twin
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| posted on 11/1/13 at 08:35 PM |
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The only time it makes a difference is if there is a diode across the coil, but they are usually indicated on the markings
As you have tried it both ways and it clicked it hasn't got a diode so yes either way is ok
Duratec Engine is fitted, MS2 Extra V3 is assembled and tested, engine running, car now built. IVA passed 26/02/2016
http://www.triangleltd.com
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omega 24 v6
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| posted on 11/1/13 at 08:35 PM |
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coils are fine either way unless they have a diode across them for backward emf.
If it looks wrong it probably is wrong.
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rdodger
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| posted on 11/1/13 at 08:46 PM |
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Thanks guys.
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