Anyone know anything about RELAYS

Anyone know anything about RELAYS was created by rough luck

Posted 13 years 11 months ago #19516
Hi all

I made a spoiler a while back and to get it running I had to bend a few relays to make them work as I wanted, sort of like this if it makes sense

Normal Relay, power ON, and it opens the main supply to ON

what I need, Power OFF, main supply must be ON.....but when I put the power to the relay I need it to turn the main supply OFF

Does anyone know the name for these relays or where I can get them?

I've sort of looked but just got lost

Youtube channel of mods an track pics

http://www.youtube.com/user/busternorris?feature=mhum

Website: http://www.roughluckracing.com/ MG Rover Mobile Repairs Nationwide and Western Europe

by rough luck

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  • psymon
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Replied by psymon on topic Re: Anyone know anything about RELAYS

Posted 13 years 11 months ago #19529
You need a two way or multi pole relay.

Have a rummage through yours untill you find one with 5 connectors on it (not the indicator one)
Most of the time, One pin will be open on supply and one pin open on no supply. double check with the diagram on the side of the relay
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Replied by psymon on topic Re: Anyone know anything about RELAYS

Posted 13 years 11 months ago #19530
here's one

[img


http://www.everything-ev.com/12v-40a-relay-p-365.html
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  • cjj
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Replied by cjj on topic Re: Anyone know anything about RELAYS

Posted 13 years 11 months ago #19537
The option Psymon has given you is the most commonly available one for the job you want, but strictly speaking what you want is a SPST N/C relay (normally closed). When the power is applied the contacts open.

The one shown is known as SPDT relay, or changeover and can be wired as either N/O or N/C, or both.

Have a look here for all your relay questions. http://en.wikipedia.org/wiki/Relay

Poles and throws are about half way down the page.
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Replied by cjj on topic Re: Anyone know anything about RELAYS

Posted 13 years 11 months ago #19597
Do you know what sort of current you are drawing?
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Replied by cjj on topic Re: Anyone know anything about RELAYS

Posted 13 years 11 months ago #19598
Are there any electronic components involved in the circuit? If so, you might want to fit a quench diode across the coil.
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Replied by rough luck on topic Re: Anyone know anything about RELAYS

Posted 13 years 11 months ago #19604

cjj wrote: Are there any electronic components involved in the circuit? If so, you might want to fit a quench diode across the coil.


I think its only about 5A an its not got any other components apart from more relays and 2 miro switches, 1 to stop it when fully up an 1 for fully down

Youtube channel of mods an track pics

http://www.youtube.com/user/busternorris?feature=mhum

Website: http://www.roughluckracing.com/ MG Rover Mobile Repairs Nationwide and Western Europe

by rough luck

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Replied by rough luck on topic Re: Anyone know anything about RELAYS

Posted 13 years 11 months ago #19795
This is the mad way I got round all the stuff I wanted

Its a bit ruff but it works


Youtube channel of mods an track pics

http://www.youtube.com/user/busternorris?feature=mhum

Website: http://www.roughluckracing.com/ MG Rover Mobile Repairs Nationwide and Western Europe

by rough luck
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