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Across the line starting circuit configuration
2

Across the line starting circuit configuration

Across the line starting circuit configuration

(OP)
I would like to know why the NC contacts from the overloads on a typical "across the line" starting circuit are always wired to the common side of the contactor coil. Typically, the start and stop contacts are wired to supply power to the coil and the overloads are always wired to interrupt the common to the relay.

This seems to add confusion to the circuit when you have to troubleshoot the system. In my opinion, it would make more sense if everything was wired to interrupt the A1 side of the coil and the A2 side was tied directly to common.

I realize that electrically everything will work either way but it just goes against logic to switch both sides of the circuit.
 

RE: Across the line starting circuit configuration

This has been discussed at length. Search this site for previous discussions.

Bill
--------------------
"Why not the best?"
Jimmy Carter

RE: Across the line starting circuit configuration

(OP)
Sorry about that... I should have searched a little more before posting the question...

 

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