12v Relay

DPG · Oct 25, 2014

Lucien Nunes said:
FFS it's a 2-pole relay, each pole has com, NO & NC contacts just like a 2-way light switch. Davesparks spelled this out in post #19. Choose a pole, any pole*, and use the NO and com of that pole.

I cannot remember a time in my life when I didn't know how a relay worked. I still have My First Relay that I made when I was about 7, SPNO and a very low resistance coil to work on a 1.5V battery, it would actually pull in on just under a volt. Dad reckoned it wouldn't have enough amp-turns to be reliable - he was right, but its limited performance taught me about contact setting, hysteresis, residual gaps etc. By the time I'd moved up to Junior School that was all old hat and I was buying relays and cradles from my favourite surplus shop in the Edgware road.

*not one with overhead cables or dancers on, North, South or one from Poland.

First time I've seen Lucien get agitated. Lol. Daz