On a SPDT relay, I have always wired power to 30, then wired whatever accessory i was powering to 87. If I switched those around and wired my accessory to 30, would it still get the amperage boost of the relay? Does the output only come out of 87 or 87a?

------------------
1989 IROC-Z 5.7L

 

You can wire a relay in many different ways to do a lot of things.30 is normally closed with 87a while 87 is open until the relay is activated.You can go either way- power supply on 30,87a,or 87.But, 87a will keep the circuit closed,and if you put your acc on 87a,it will stay on until you activate the relay.