On Wed, Jul 27, 2022 at 04:07 PM, <ddmckee54@...> wrote:
Doing the voltage drop calculations, using the maximum allowable voltage drop of 3%, 110 volts supply voltage, and your load of 6 amps - the maximum length of the 18AWG fixture wire is 34'.? Any longer and you exceed the 3% allowable drop.
Since the motor is 150 W the current for the 110 V supply is only 1.36 A, call it 1? A, so quite light wire will do. I would use whatever is easy to use - sometimes a wire can be too thin to be practical. On the 24 V side the current will be 6.25 A maximum, so 10 amp wire will be fine. The motor will rarely, if ever, work at maximum power, and the cable run will be short, so it would probably be OK to use 6 A rated cable, and voltage drop will not be significant.
