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View Full Version : Wiring 1hp Delta BS from 110 to 220



Hunter Wallace
10-04-2007, 7:06 PM
I've got a 1hp Delta bandsaw, model 52-977,
that I've been trying to wire from 110 to 220.
I've rewired every other tool in my shop that's able
to be rewired but this one's giving me a fit...

First, there is no such bandsaw with a Delta model
number 52-977...all Delta bandsaws start with a 28-xxx.
I only bought the machine 5 years ago, so it's not like
it's THAT old. I bought it from (what was once called)
Woodworkers Warehouse up here in the northeast. New.
In a box.

Second, the wiring plate on the motor is very easy to read, like most
Delta tools...problem is none, and I mean NONE of the wire colors
listed on the plate correspond with actual wires in the j box
on the motor (or in the switch box). And none of the wires have
numbers or any other markings which may give me a clue as to
what to do. There also only seem to be two wires, plus a ground,
entering the motor...a black and a white.

The motor plate says it is a 110/220 (or 115/230...semantics I think?)
and that it was pre-wired at the factory to 110. I've talked to Delta
and to there Servicenet people about it and they seem to know less
than I do about what I've got going on.

Any of you guys have any ideas or clues for me? Not the end of the world,
but I've got limited amperage in my not too fancy shop and would like to
cut it down a bit more.

Thanks (for anything!) in advance

Oh, one other thing, every label on the machine is printed with "Made in USA",
for what it's worth (fwiw)

Brian Weick
10-04-2007, 7:24 PM
Hunter ~ maybe this will help you http://www.happywoodworking.com/MotorWiring.html
Brian

Chuck Lenz
10-04-2007, 8:04 PM
Hunter, I ran across this ad. Delta Industrial 14" bandsaw, 52-977/28-212. Wired for 220V, easily wired back to 110V. It looks to me like your saw could be a 28-212.

Rick Christopherson
10-04-2007, 11:05 PM
Being that this is only a 1 hp motor, I wouldn't spend so much effort on converting it to 240 volts. It is only drawing about 10 amps at 120 volts.

Converting this to 240 will not change the total load on your service panel, it will only help balance it out better. This isn't something that should be too big of an issue with such a small motor. Have you put an ammeter on your mains to see how well they are balanced during typical operation?

Hunter Wallace
10-05-2007, 1:18 PM
Thanks guys, I'm looking into your info as we speak.

Rick- Yeah, I agree about not needing to go 220...
but now I feel like that motor is taunting me :p

Kent Fitzgerald
10-05-2007, 3:51 PM
There also only seem to be two wires, plus a ground,
entering the motor...a black and a white.

The motor plate says it is a 110/220
Something isn't right. Either the motor plate is incorrect, or there have to be more wires somewhere (maybe buried inside the motor housing).

I'd take Rick's advice and leave well enough alone. Some mysteries just aren't meant to be solved - especially not on a Friday afternoon. :D

Gary Webster
07-29-2009, 6:15 PM
Hunter,
Check your motor housing and see if the motor is made by Marathon Electric with a Delta model number of 62-245. If so, I can offer you some advice as I just re-wired mine to 230v yesterday.
Gary

Myk Rian
07-30-2009, 2:24 PM
Hunter, I ran across this ad. Delta Industrial 14" bandsaw, 52-977/28-212. Wired for 220V, easily wired back to 110V. It looks to me like your saw could be a 28-212.
That number may be wrong. I have a 28-299 Made in USA 14" and a sticker on the upper wheel guard has 28-212.
I can check my motor wire colors and post them if need be. It is wired for 110v.

Gary Webster
07-30-2009, 2:24 PM
DUH! Sorry all! Maybe I'll look at the date before posting the next time. Better late than never, I guess!

Myk Rian
07-30-2009, 3:37 PM
I'm guilty too. LOL