johnboy pilot Posted February 1, 2009 Report Share Posted February 1, 2009 can anyone help. I'm wiring up an uprated heater but can't figure out the relays. 30 is power from the battery but which of the others are for which wire? (85, 86 & 87) Quote Link to post Share on other sites
Rhodri Posted February 1, 2009 Report Share Posted February 1, 2009 87 to the heater motor, 85 from the switch, and 86 to earth. Quote Link to post Share on other sites
tthomson Posted February 1, 2009 Report Share Posted February 1, 2009 can anyone help. I'm wiring up an uprated heater but can't figure out the relays. 30 is power from the battery but which of the others are for which wire? (85, 86 & 87) Hi Johnboy, 30 connects to supply (typically battery) 85 is one end of the coil 86 is the other end of the coil 87 is a normally open connection (closes when coil is activated) 87a is normally closed connection (opens when coil is activated) Only seen on changeover relays Good luck TT Quote Link to post Share on other sites
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.