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Help replacing a contactor

slash007

Well-known member
I have a contactor for one of my dryer motors that occasionally sticks. It's been doing it every few months for the past couple of years and usually works for a few months after I get it to unstick. I think it's time I change it and was wondering if there was an easy way to get it out of the rack is slides on without taking out the others?

The one labeled R is the bad one, you can see it pushed in. 20210412_123200.jpg


I have a 2nd question. I found a spare contactor that is very similar, but the 24v part is on the top instead of on the bottom. Any way I can use this one and make it work?
20210413_153731.jpg
 
Those contactors come apart and you can flip the coil around for a bottom feed.
 
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Be sure to check the amp rating of that contactor before installing it, should be listed on the side. You will need a 30A contactor like the Allen Bradley one in your picture for a 10hp dryer motor (230V). The replacement one your holding is only rated for 16A load meaning its too small and will burn up the contacts quickly.
 
Be sure to check the amp rating of that contactor before installing it, should be listed on the side. You will need a 30A contactor like the Allen Bradley one in your picture for a 10hp dryer motor (230V). The replacement one your holding is only rated for 16A load meaning its too small and will burn up the contacts quickly.
Looks like it's 30amp
 

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That contactor looks like it's in your old OHD TPD control cabinet. If so, that was NCS P/N 10629-269, and it is rated at 37A. We still have that parts available if you need it. Or, if you look on the side of that AB contactor, it should show you the AB part number, then just use Google to find a replacement.
 
Its simple do a google search for “Allen-Bradley C30 breaker” I found a couple in a couple of minutes. But without knowing the complete model number it's kind of hard to get the correct breaker, “Allen-Bradley C30 breaker” is a good start.
 
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