Quote:
Originally Posted by MrBasse
I might be missing something really simple, but I never understood this rule. If the device in question has 14 AWG wire standard, why do I have to feed it with 12 AWG? Are we trying to say that the manufacturer is not using the proper wire? A CIM on a 40 AMP breaker will draw a good amount of current if you tell it to, but why doesn't the CIM wiring dictate what wire is used between the breaker and the speed control?
How does it make sense that I would have to crimp 12 AWG wire to 14 AWG wire after the speed controller to be legal? How does that help?
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Quote:
Originally Posted by rich2202
Because you put it on a circuit capable of feeding 40 amps. The RI looks at the PDB and breakers. If you put a 40 amp breaker in the PDB, then that connection has to have 12 AWG wire. The RI doesn't have to follow the circuit to see what it is connected to.
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CIM wire leads also have insulation that can take more heat than the insulation that's on most wires.