Victor connect to 30 A instead of 40 A

[Daniel_LaFleur]

Originally Posted by FrankJ

The idea that the breaker is sized just to protect the wire is facilities logic. When you size breakers or other over current devices on a piece of equipment, like a robot, you size them for the protection of the load. You size the wire to suit.

A smaller breaker won't hurt your victor, it might save your motor.

Sorry, FrankJ, but I respectfully disagree.

A breaker or fuse is no where near fast enough to protect a load from overcurrent (look at the trip specs).It is, instead, there to protect the rest of the wiring from an overcurrent event once a electrical failure has occurred. Thus, you size the wire to suit the load and you size the fuse/breaker to protect the wiring.