Skip to main content

Reply to "Why should I use relays in my Speedster?"

OK... that's enormously complicated for something pretty easy.

A "Double-Pole, Single-Throw" (DPST) relay has a "common" and two switches, one of which is always made. The "Normally Open" (NO) switch is made (closes) from common to the NO contact when coil voltage is applied. The "Normally Closed" (NC) switch is made (closes) from common to the NC contact when voltage is taken away from the coil.

It's either/or, not both/and. They can't both be made or open at the same time.

Power is always looking for a ground. A stitch in time saves nine. A bird in the hand beats two in the bush. He who hesitates is lost. A penny saved is a penny earned. No good deed goes unpunished. Don't poop or pee your pants.

Forewarned is forearmed.

Last edited by Stan Galat
×
×
×
×
×