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DavidBall · 12-10-2012, 06:37 PM

CoachCrazy,

A relay is basically a small switch that operates a big one. Sort of a remote control and power assist for a big, high power switch. A small amount of power is applied to the small switch terminal, which operates an electro-magnet to "pull" down a big switch. The big switch can handle a lot of power, example: enough to operate a motor or compressor. The electro-magnet and the big switch are in a box together and that is called a relay. The little switch is somewhere else - its the one you turn on/off when you want the big switch to do something.

DB

12-10-2012, 06:37 PM	#2
DavidBall Member Join Date: Oct 2007 Location: USA Posts: 74	CoachCrazy, A relay is basically a small switch that operates a big one. Sort of a remote control and power assist for a big, high power switch. A small amount of power is applied to the small switch terminal, which operates an electro-magnet to "pull" down a big switch. The big switch can handle a lot of power, example: enough to operate a motor or compressor. The electro-magnet and the big switch are in a box together and that is called a relay. The little switch is somewhere else - its the one you turn on/off when you want the big switch to do something. DB __________________ David & Maria Ball 1989 Newell Owner