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relays for lots of switches

Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=115852
Printed Date: May 20, 2025 at 8:07 AM


Topic: relays for lots of switches

Posted By: drummerian
Subject: relays for lots of switches
Date Posted: August 23, 2009 at 4:50 PM

Hey ppl,

So i am re-doing the dashboard in my classic mini. The switches that are in it are old and tacky looking so i brought some new ones. However, the old ones were high current rating and did not require relays. The ones i have brought will do since the can only handle around 2 amps.

I have got the following to install:
Starter Button
Lights
Sidelights
Hazzards
Rear Screen heater
Foglights
Power (for car pc in boot)
Brake test switch (this ones a bit mini specific i believe)

SO i need to know what relays to use for all these? Obviously a neat realy bank could be nice...?

Thanks guys



Replies:

Posted By: howie ll
Date Posted: August 23, 2009 at 6:05 PM

You will need relays for starter button, headlights, high and low beams,  rear screen heater and fog lights. Also possibly the in car PC unless you have an existing acc position on the ign switch.  Hazards and brake test, replace with original. The relays will all be bosch 4 or 5 pin types readily available, Halfords, Maplin etc. The hazards can be a STDP switch or a single on off switch  with two relays or a single type 87b relay. (Harder to get). You will still need a flasher relay and the original brake test switch. In fact if the original had the brake test switch, you WILL have an ACC (GREEN / WHITE?) at the original ign switch.


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