bp-redbear:

Also consider that the length of the 12ga wires on these overloads are less than 3" long. I'm positive that the voltage drop in such a short length of wire would be negligible by Ohm's law even at 30-plus amps of load. Thus no worries of overheating. [Linked Image]

I've used several of these overloads for different applications (Two for a dual pipe organ blower starter I designed and several for other fan and machine apps.) They've proven their value with reliable performance and no false trips. The phase loss feature is the best!! And to boot, the cost is actually reasonable.

A-B also makes a DIN-rail terminal kit so they can be used with other brands of contactors. (Also very inexpensive!)

Stupid should be painful.