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Need some motor help before I burn down my house

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Forum topic by Thesepaperwings posted 02-26-2017 02:25 PM 1856 views 0 times favorited 18 replies Add to Favorites Watch
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Thesepaperwings

48 posts in 1502 days


02-26-2017 02:25 PM

Ok, so am setting up my new to me woodmaster 718 planer and I’m confused on the motor. I remember enough to be dangerous and basically confuse myself. the lesson motorplate States 5hp at 230V for 60hz, it doesn’t not show this as a dual voltage or a dual frequency. Here’s the kicker, it has a 12ga power cable on it setup for 115 in a 20 amp outlet. I’m trying to figure out a few things:
1) if this is running on 125v isn’t it going to be pulling like 50amps or something more than the 12ga 20amp rating?
2). I thought if a motor ran at a lower voltage it would actually lower either the hp, frequency or torque?


18 replies so far

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pontic

500 posts in 442 days


#1 posted 02-26-2017 02:45 PM

1) 30amps so yes you will be over loadind the cable.
2) no, no and no

-- Illigitimii non carburundum sum

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Thesepaperwings

48 posts in 1502 days


#2 posted 02-26-2017 03:01 PM

That’s what I figured. I have a 230v extension cord so I think I’ll just rewire for 230 and switch the cord back and forth from my saw. Better to not worry about it. It’s a miracle this guy didn’t burn something up for the many years it was in use.

View Fred Hargis's profile

Fred Hargis

4756 posts in 2327 days


#3 posted 02-26-2017 03:32 PM

Are you sure that’s a 120V plug? That tool wouldn’t run on it.

-- Our village hasn't lost it's idiot, he was elected to congress.

View WhyMe's profile

WhyMe

909 posts in 1394 days


#4 posted 02-26-2017 03:51 PM

That planer has a listed 5HP/230V motor. It will not run on 120V. You must be misidentifying the plug.

View splintergroup's profile

splintergroup

1687 posts in 1056 days


#5 posted 02-26-2017 04:00 PM

Could be one of the plugs prongs is twisted 90 degrees (NEMA 6-20P, 230X 20A)

View Loren's profile

Loren

9606 posts in 3481 days


#6 posted 02-26-2017 04:05 PM

My woodmaster had two motors. One was
220, the other 115v for the variable feed.

Anyway, you can wire 220 up to a regular
outlet but that’s very poor practice so you’ll
want to switch the plug out for something
that won’t cause any confusion.

View TheFridge's profile

TheFridge

8287 posts in 1320 days


#7 posted 02-26-2017 04:07 PM

Previous owner probably just rigged something with a 125v cord end.

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

View Thesepaperwings's profile

Thesepaperwings

48 posts in 1502 days


#8 posted 02-26-2017 04:37 PM

well maybe I knew less than I thought! Here is a pic of the cord.

View Fred Hargis's profile

Fred Hargis

4756 posts in 2327 days


#9 posted 02-26-2017 04:58 PM

That’s a 240V plug, 20 amps.

-- Our village hasn't lost it's idiot, he was elected to congress.

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Thesepaperwings

48 posts in 1502 days


#10 posted 02-26-2017 05:07 PM

Well I learn something new every day. So any issue with me building an adapter and plugging this into my 80amp outlet that my powermatic is using?

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Fred Hargis

4756 posts in 2327 days


#11 posted 02-26-2017 05:20 PM

Generally, #12 wire isn’t sufficient for a 5HP motor, they usually have #10. But I’m guessing that saw has run some on the setup and (if true) will also run just fine where your saw is plugged in; another question: you sure that’s an 80 amp outlet (I’ve only seen up to 50 amps on single phase)? Also, doesn’t your saw have the same plug on it? Think you could get a pic of the motor plate on the Woodmaster for us?

-- Our village hasn't lost it's idiot, he was elected to congress.

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Thesepaperwings

48 posts in 1502 days


#12 posted 02-26-2017 06:03 PM

I’ll snap photos of the motor plate and what my saw is plugged into

View bigblockyeti's profile

bigblockyeti

4692 posts in 1554 days


#13 posted 02-26-2017 06:16 PM

80 amp outlet? Sure it isn’t 50 or 60 amps? You can make an adapter or install the same plug your saw has. I would be inclined to run 10ga SO cord instead of 12ga for a motor of that size.

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Thesepaperwings

48 posts in 1502 days


#14 posted 02-26-2017 06:23 PM

Ok, I’ve recently moved into this house and am still chasing wires to see what goes where. The outlet that I want use is a 50amp/dryer outlet that was used for his small welder, it traces back on 8ga wires to a 40amp double breaker. My saw has a baldor 3hp single phase that reaches this outlet and works like a charm. There is another 230v with 80 amp breakers that is using some unknown gauge that looks like it’s the size of a garden hose, this goes to some capped leads as they had it wired into the big welder. Pictures are of the planer motor plate, the outlet I want to use, my saw plug and my saw because I’m still excited about it.

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bigblockyeti

4692 posts in 1554 days


#15 posted 02-26-2017 06:30 PM

I would run 10ga cord to the machine and install the same plug you have on your saw, the whole project should be less than $40 and you don’t have to mess with making an adapter.

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