Additional Electrical Query - Jointer Upgrade Redux V

[John Moorhead]

Folks -

Thanks for your remarks about the wiring and the capacitors. I've given things some thought overnight and have decided to put all of the heavy wiring and connections into a larger junction box and run wires up for the switch. Trying to get the 3 wire dryer plug cord and motor cord wiring into the switch receptacle makes for an uncomfortably tight fit.

So, the question... what gauge size wire do I need to safely wire the double pole switch? The motor data plate says the current draw is 9.2 amps at 220 volts.

By running everything else out of the J box I can terminate the power cord closer to the outlet, which will gain me about a foot of "move around".

Hats off in advance... thanks!

John Moorhead

[Robert Bonomi]

standard max load ratings: 15A for #14 wire, 20A for #12 30A for #10 40A for #8 60A for #6 100A for #3 125A for #2 Fixed equipment load -- i.e. hard-wired -- is limited to 80% of breaker. So you'll need at least 14 ga wire, and a 15A breaker.

_I_ would probably run #12, maybe even #10, because (a) the cost diffrence is very small, and one never knows, down the road, but one might want to hook something bigger up. It's nice to have the 'reserve capacity', without any need to re-do everything. :)