What's new

Help replacing a contactor

slash007

Well-known member
Joined
Jul 8, 2012
Messages
2,412
Reaction score
337
Points
83
Location
Lexington, Ky.
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
 

MEP001

Well-known member
Joined
Aug 30, 2007
Messages
16,667
Reaction score
3,937
Points
113
Location
Texas
Lift up on this to unhook it from the DIN rail:

Contactor.jpg

I doubt it would hurt anything to mount the contactor upside down, otherwise you'd have to extend the wires.
 

Blanco

Well-known member
Joined
Jan 30, 2021
Messages
308
Reaction score
291
Points
63
Those contactors come apart and you can flip the coil around for a bottom feed.
 
Last edited:

MGSMN

Active member
Joined
Mar 18, 2016
Messages
121
Reaction score
32
Points
28
Location
USA
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.
 

slash007

Well-known member
Joined
Jul 8, 2012
Messages
2,412
Reaction score
337
Points
83
Location
Lexington, Ky.
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
 

Attachments

OurTown

Well-known member
Joined
Nov 8, 2017
Messages
3,302
Reaction score
1,187
Points
113
Location
Ohio
Only rated at 5HP @ 230 volt three phase.
 

Ryko CS

Active member
Joined
Apr 23, 2012
Messages
332
Reaction score
65
Points
28
Location
Grimes, Ia
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.
 

Randy

Well-known member
Joined
Sep 5, 2007
Messages
5,662
Reaction score
1,971
Points
113
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.
 
Top