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-   General Diesel Related Tech Articles (https://www.dieselbombers.com/general-diesel-related-tech-articles/)
-   -   How To Wire A Relay (https://www.dieselbombers.com/general-diesel-related-tech-articles/28156-how-wire-relay.html)

RSWORDS 06-18-2009 03:28 PM
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

sidekick 06-18-2009 03:57 PM
good one bobby nice find

kazairl 06-18-2009 04:16 PM
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.

Begle1 06-18-2009 04:25 PM
What about three pin relays?

RSWORDS 06-18-2009 05:13 PM
Originally Posted by Begle1 (Post 352745)
What about three pin relays?
That one is on you Begle.

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

2500HeavyDuty 06-18-2009 05:13 PM
how bout 5 pin relays...:tttt:

Begle1 06-18-2009 05:39 PM
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...

RSWORDS 06-18-2009 05:52 PM
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...
Make em up Begle! I'll stick them in teh 1st post. I'm not much on electricity so I dont play with all that fancy ass stuff. A regular relay is about as wild as I get before I call someone else. :D

RSWORDS 06-18-2009 05:52 PM
Originally Posted by 2500HeavyDuty (Post 352770)
how bout 5 pin relays...:tttt:
YOU!!! OUT OF MY THREAD!!!


















:D

2500HeavyDuty 06-18-2009 06:52 PM
so would that be a n/o relay or a n/a relay? :humm:


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