Hope you ain't gonna be able to outrun me come skirt-chasin time !! .. :laughing:..:laughing:
Thanks, Skipper.
I had read that the converter thingy reduced the HP by 1/3......
But, now I am confused a bit.
I may have switched legs at the breaker, at that point just single phase.
Dunno how that plays with the converter thingy.....
I just hope I didn't have the pump running backwards...unsure if that would cause any harm or not.
Now, as to wire/breaker size.
I have read on a few charts that I should have a 69A breaker for a 5HP 1 phase motor, but wire can be as small as 10GA.
WTF ??
http://www.wessconw.com/uploads/5/1/2/3/51239285/electrical_requirements.pdf
http://www.industrialaircompressors...CTRIAL-Specifications-for-Air-Compressors.pdf
http://www.eatoncompressor.com/mymanuals/Amp draws - 1.03.14.pdf
I thought putting too small a wire for the breaker was a definite NO-NO !
And, as the motor should only draw 20-22 amps, why 60A breaker??
I just rewired the sub panel with 8ga/40A beraker form the main panel.........I don't wanna do that again .........
As with all this stuff at this point in my existence, I get consumed by questions that I can't seem to get answers to....
There is so much conflicting info on the www..........
Boo,
Believe me! Right at this point in time, I can't even walk, never mind run!! Whatever they administer for pain relief via your IV wore off about 10 AM yesterday and of course being a 'tough guy' I refused all pain meds when I left the hospital.. I'm now wondering just how tough I really am!! Getting in or out of a chair is pretty rough and sleeping is a bitch because you can't find a pain free position. Then if you do fall asleep and move, you are quickly and painfully awakened! Oh well, this too will pass and it won't kill me.. (What doesn't kill you makes you stronger, right?? - It's still OK to whimper a little though, isn't it?)
Rog
Old Electricians saying : ... 2 wires, hook it up, .. 3 wires, screw it up, .. 4 wires, blow it up..... :confused2:
AND : How do I know if this switch, is the right switch, if I don't know, which switch, is which .. ??
Advice like that is how they got to be OLD !
And now, for something completely different:
View attachment 41718
Ron,
As I mentioned earlier, the starting current (immediate in-rush of current) when a motor starts (and is overcoming inertia) is around three times it's operating current. (3 X 20 = 60) However, most breakers will withstand that current flow for a short duration. Don't sweat it, hook up your new 240 V motor to your 40-amp circuit and see what happens. It ain't rocket science and the worst that can happen is the breaker will trip and then you can decide what to do about that..
I agree the over current device (circuit breaker) must protect the circuit as well as the appliance. I would NEVER put a 70 amp breaker on a length of #10 wire! Leave the theoretical crap to the theorists. Remember SAFETY first! Code second and don't make sparks in front of the customers.
Roger