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kannan012
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Contactor Working

02/03/2014 8:32 AM

Hi

Can you explain the working of a "reversing contactor" and normal "contactor"
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Tom_Consulting
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#1

Re: Contactor working

02/03/2014 9:02 AM

http://www.youtube.com/watch?v=nKDG3Ja4d8A

Try Google...

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#2

Re: Contactor Working

02/03/2014 2:50 PM

Yes. Why?

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JRaef
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#3

Re: Contactor Working

02/03/2014 9:43 PM

I was not aware that reversing contactors were abnormal...

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kvsridhar
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#4

Re: Contactor Working

02/04/2014 8:59 AM

love giving unnecessary information Do you know 'normally closed' contactors ? Sometimes used for dynamic braking for example. They work in reverse logic. Not to be confused with what you wanted though.... just something new for you to learn. Sorry if this is confusing.

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topturner
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#5

Re: Contactor Working

02/05/2014 9:28 AM

They have been around since "for ever" and their purpose is just that or to reverse a Load (normally a motor .. but I have used them in other applications -before PLCs back in the Relay Logic days).

On a 3 phase motor they reverse the motor direction by "swapping: to leads (L1 & L3). ALL "Good" reversing contacts have a LOCK Out device that prevents the same load from being told to go the opposite direction at the same time (BAD)..

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V.I.Abraham
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#6

Re: Contactor Working

02/05/2014 9:32 AM

Normal contactor are used for reversing with change of connection. But reverse contactors and only used for reversing purpose ony.
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V.I.Abraham
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#7
In reply to #6

Re: Contactor Working

02/05/2014 9:44 AM

A reversing contactor

ome / Sensors, Automation, Safety Systems / Motor Control / Contactors / Magnetic Motor Contactors / Reversing Contactor 135A 3P 120/110V 60/50Hz Open

EATON - W211K4CF

Reversing Contactor 135A 3P 120/110V 60/50Hz Open

EATON

Manufacturer # W211K4CF

CBC #78211421434
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V.I.Abraham
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#8

Re: Contactor Working

02/05/2014 10:03 AM

A nice demonstration of reversing switich is given in U tube. Just visit it.

http://www.youtube.com/watch?v=nKDG3Ja4d8A
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