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-   -   Allen-Bradley Contactor Wiring Help (http://www.homebrewtalk.com/f170/allen-bradley-contactor-wiring-help-381675/)

ryane 01-15-2013 11:17 PM

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You cant split the current between two contactors because in a 240V single phase center tap application the current flows between the two hot legs of the circuit

The link you posted said the contactor is good for 28A at 240V, so youll blow the contactor when using a 50a load.

If you want a cheap 2phase 50A resistive contactor you can get them HERE for ~$11 each plush shipping

once you get the correct contactors, you wire them up like the picture attached, although if your having trouble understanding the contactors you might want to reassess what your attempting, tell us everything you want to do, and we can all help to make sure your set up is safe

ironmountainbrew 01-15-2013 11:48 PM

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I made an assumption based on a diagram from ebrewsupply. It appears that he is using two 40a contactors to pull in the 50a service. I was really just double checking, but sounds like I may have been mistaken on how to use the contactors.


He's using 1 40a contactor in to the ssr and contactor for one of the elements. Then the other to the 15a breaker and down to the other ssr and contactor.

I'm going off a diagram P-J created, but had assumed the two contactors would work based on the above diagram and was trying to figure out how to use the two contactors I had.

Here's the P-J diagram:

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