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Unread 09-02-2014, 12:20
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Re: Victor connect to 30 A instead of 40 A

Quote:
Originally Posted by Daniel_LaFleur View Post
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.
Daniel, a breaker is there to protect load and the wiring. If you use 12ga wire instead of 14ga with a 30a breaker you are actually adding a level of security. The wire will be much less likely to be damaged if you have a load that trips the breaker.
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