Single Pole Double Throw Relays

How the single pole double throw sw works at the relay

Single Pole Double Throw Relays

A description of the single pole double throw relay as seen on 2 different types of relay. This video is part of the heating and cooling series of training videos made to accompany my websites: www.graycoolingman.com and www.grayfurnaceman.com to pass on what I have learned in many years of servi...

Tags: electric,controls,motor,fan switch