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Old 02-04-2010, 11:36 AM   #1
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contactor 'auxiliary contacts' "mix and match"?


generally speaking, do auxiliary contacts on contactors HAVE to be made by the SAME manufacturer as the contactor itself?

or, probably better if I ask this way: are auxiliary contacts activated ONLY by electrical connection to the contacor, OR are they activated mechanically, by a 'moving mechanical' connection?

what I'm getting at is:
if I need a control circuit (for contactor hold-in) does its' auxiliary contact NEED to be screwed to and 'hanging off of' that contactor, *OR* can it be a few inches over, connected to the contactor by push-on terminal ended wires?

same as before, please no dire safety warnings and similar 'wet rag' replies, I'm not seeking binding legal certainties here.

thanks you guys :-)

shag
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Old 02-04-2010, 12:10 PM   #2
 
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Auxiliaries are connected mechanically to the contactor and must be by the same manufacturer. There may be manufacturers that share a common component but I am not aware of them.
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Old 02-04-2010, 08:04 PM   #3
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I agree with the above; no two manufacturers are even close to the same.

Rob
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Old 02-05-2010, 09:46 AM   #4
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thanks you guys

I sure appreciate the info :-)

shag
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Old 02-05-2010, 09:59 AM   #5
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Quote:
Originally Posted by Pro_DYIer View Post
Auxiliaries are connected mechanically to the contactor and must be by the same manufacturer. There may be manufacturers that share a common component but I am not aware of them.
To attach mechanical aux contacts to a starter, the contacts must be of the same manufacturer. But electrically operated aux contacts can be added without attaching them to the contactor.

So, the answer to your question is yes. You can install aux contacts for any starter using a relay mounted anywhere you like.
They would not be formally called aux contacts if they are not mechanically attached to the starter. They would just be called contacts.
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Old 02-05-2010, 01:03 PM   #6
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Quote:
Originally Posted by J. V. View Post
To attach mechanical aux contacts to a starter, the contacts must be of the same manufacturer...<snip> just be called contacts.
thanks for the clarification, JV, *very* much appreciated
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