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How To Wire A Relay
2 Attachment(s)
I always have a problem trying to remember how to wire up a relay, So after searching the web for the 398574097236 time I came across this. Its the best digram I have seen yet! Relay Wiring Diagram A relay is typically used to control a component that draws high amperage. The relay allows full power to the component without needing a switch that can carry the amps. The switch only controls the relay. The relay then provides a direct connection to the battery. It should be noted that either the power(86) or ground(85) in the relay control circuit can be switched. In the case of a horn, the horn button would be used to switch the ground lead(85) and power(86) would be provided directly from the fuse box. This is a typical wiring diagram for a standard relay installed for headlights, horn, fuel pump, electric fan, etc. If the relay has a 5th terminal, it is not used. Attachment 52307 Attachment 52308 Relay Wiring |
good one bobby nice find
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That does help. But you should remember the 87a contact is energized when the coil is off(switch is off). Comes in handy depending on how your wiring things.
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What about three pin relays?
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Originally Posted by Begle1
(Post 352745)
What about three pin relays?
this was more or less so that I could find it next time I need to wire a relay. :D I do it every time, sit there staring at the relay and eventually say f-it and go search on the net for how to wire it... Every time! You would think by now I would have it memorized. :D |
how bout 5 pin relays...:tttt:
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I got lots of 6 pin relays.
I might even got some 8 pin relays around. And lets not forget solid state relays. :ok1: ---AutoMerged DoublePost--- If there's really demand, I could make some diagrams... |
Originally Posted by Begle1
(Post 352781)
I got lots of 6 pin relays.
I might even got some 8 pin relays around. And lets not forget solid state relays. :ok1: ---AutoMerged DoublePost--- If there's really demand, I could make some diagrams... |
Originally Posted by 2500HeavyDuty
(Post 352770)
how bout 5 pin relays...:tttt:
:D |
so would that be a n/o relay or a n/a relay? :humm:
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Originally Posted by Begle1
(Post 352781)
I got lots of 6 pin relays.
I might even got some 8 pin relays around. And lets not forget solid state relays. :ok1: ---AutoMerged DoublePost--- If there's really demand, I could make some diagrams... Most 8 pin relays are DPDT. Two switches operated by one coil. What about NPN and PNP transistors? should we go into detail? lol |
..Starting to get confusing. I thinks I needs to go back to school.
:ok1: |
There are good explanations and diagrams showing how to wire relays:
Quacktu: electronic circuits - solenoids and relays Relays and Practical Circuits |
I would like to recommend :
www.the12volt.com Everything you need to know about wiring accessories like alarms, remote starts, stereos, relays and diodes. It's very helpful to novices and advanced- pro's don't might need it.:pca1: |
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