switching drls

The lower photo is the wrong relay, 87a (upper photo) is the one you want. That is the "normal" or default SPCO type relay. 87b is just like the one shown in the lower photo but with isolated (87 and 87b) terminals as I explained above. 85 = (-) coil 86 = (+) coil 30 = common 87 = NO 87a = NC 87b = isolated NO Google automotive relay types, Bosch/Tycho, Panasonic, Omron etc. Also Google ISO automotive terminal letter designations.

howie ll wrote: The lower photo is the wrong relay, 87a (upper photo) is the one you want.

that is what i thought :( the root of all evil. thank you sir for clarifying, i will now hunt for the right one and hopefully there will be no other issues with a simple project like mine.Noob Forever ....

BTW, there's also type 88 terminals Sorry I had to! The regular 5 pin is referred to as a Bosch/Tycho type "B" format cube (1" x 1" x1"). 2 x 87 = twin output and 87b isolated twin output.

i never thought it would be this hard to find the right relay, i asked 10+ auto supply shops today and none of them carry the configuration i need :( sir is there a way to wire the wrong relays i have together and make one reverse itself when power is applied to the coil i.e, turn off or become NC?Noob Forever ....

No! The 5 pin 87a is the standard default relay. Go to a car breaker yard. UK eBay was offering a 20 pack for £0.75 each, = US$ 1.10 each.

finally! found the right relay and got my simple mod to work - thank you so much sir for all the help! now i am going to find some use to my wrong relays :)Noob Forever ....