Re: [Chrysler300] Subject: Electric Window Motors

[Ray Jones <hurst300@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>]

> Confused? Ask questions, it's why we're here.

A relay is a device that uses a little current to close contacts which 
pass heavy current. Or to switch from one circuit to another, such as a 
Headlight Dimmer Relay. The advantage is that you don't have to build 
switches with massive contacts to carry the current (and heat), you 
just let the switch "trigger" the relay which does the job.
In the current discussion, the idea is that just a little current thru 
the Power Window Switch triggers the relay which supplies the much 
larger current to operate the motor.
Think of electricity as water in a hose. The switch uses a little hose 
(wire) to trigger the relay (valve) which lets the big water hose turn 
on. You wouldn't want all the current which a Starter Motor uses to 
have to go thru the Ign. Switch


> Ray


On Nov 30, 2006, at 8:49 PM, Ron Waters wrote:

> OK Everyone. Here is a chance for me to show off my ignorance.
>
> What is a relay and what advantage do you gain by using one ?
>
> Signed,
>
> Confused in Connecticut