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pushkarpandey
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Join Date: Aug 2011
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Difference Between a Switch, Relay, Circuit Breaker and Contactor

08/11/2011 7:07 AM

helo

can anyone could tell me the exact differences between a switch,relay,circuit breaker and contactor.
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TonyS
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#1

Re: difference between a switch,relay,circuit breaker and contactor

08/11/2011 7:38 AM

Try looking on Google!

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redfred
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#2

Re: difference between a switch,relay,circuit breaker and contactor

08/11/2011 7:50 AM

Yes.

Before you ask your next question, I think you need to do some homework.

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ozzb
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#3

Re: difference between a switch,relay,circuit breaker and contactor

08/11/2011 8:01 AM

Their application

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Rorschach
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#4

Re: Difference Between a Switch, Relay, Circuit Breaker and Contactor

08/11/2011 9:40 AM

A switch is a mechanically operated circuit interruption device.

a relay is a switch (or multiple switches in the same frame) that is operated by an electromagnet that is engaged/disengaged by an external electrical circuit.

a contactor is nothing more than a relay with high power contacts for operating large loads. functionally they are the same.

a circuit breaker is a special type of switch that opens when an overload condition occurs. this may be through magnetic, thermal, or a combination of means.

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JRaef
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#5

Re: Difference Between a Switch, Relay, Circuit Breaker and Contactor

08/11/2011 2:48 PM

It should be in your tex book. Are you too lazy to read it?

....

Students... always looking for an easier way out of doing their own work.

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Fredski
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#6

Re: Difference Between a Switch, Relay, Circuit Breaker and Contactor

08/11/2011 8:31 PM

About 25 bucks.
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