Two Switches to One Relay?
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=51208
Printed Date: August 23, 2025 at 7:31 AM
Topic: Two Switches to One Relay?
Posted By: GSRPWR704
Subject: Two Switches to One Relay?
Date Posted: March 03, 2005 at 9:58 AM
Hey guys, I was wondering if it is possible to wire a relay with two switches so if I was to flip one switch to turn something off, then I can go to the other switch to turn it back on. It would be kinda like a switch at the bottom of a stairway and a switch at the top. So that you can turn the light on and off from either upstairs or downstairs.
Any help would be greatly appreciated
Replies:
Posted By: ff-mike
Date Posted: March 04, 2005 at 2:03 PM
Very easy to do
You would need 2 spdt switches. Connect the outer 2 terminals on the switches to each other. The middle terminal on switch 1 goes to power, the middle terminal on switch 2 goes to the load
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