5 terminal Relay, Basic question Options

[Rleog]

I'm adding relays to my headlight circuits.
The 5 terminals and their functions:

30 = current input
86 = trigger current input
85 = ground
87 = current output
87b = current output ?

My question: when the relay is triggered, are both 87 and 87b active, or is this an either/or arrangement?

I'm hoping to wire one headlight to 87 and the other to 87b.

Thanks

[Dtjaden]

Current will flow from pin 30 to pin 87a when the relay is inactive (when there is no current flowing between pins 85 & 86). Current will flow from pin 30 to pin 87 when the relay is active.

So the answer to wether you can connect one headlight to pin 87 and one to pin 87a is no. These relays are rated at 30 amps so there should be no problem hooking both headlights to one relay, both to pin 87. 30 amps at 12v = 360 watts, far more than the two headlights would draw.