vintage ac motor questions

[henrylr]

I just got a NOS AC motor that was never used, has no wiring diagram and the Universal Electric Company went out of business years ago. It is a 4 lead motor with one black, one blue, one red and one white wire. The plate is marked VOLTS 115, CYCLES 60, Amps. 1.0, SER. 12V39067, RPMS 900. I think it may be a shaded pole motor but not sure. Does anyone know what type motor it is, what does SER. 12V39067 mean and how to connect a 115v three prong cable to it?

Thanks,
henrylr

 

[The Cobbler]

I am guessing white is neutral , and the blk, blu,red are different speeds

 

[henrylr]

Thanks for the reply. Is it the type of motor that requires a capacitor?

 

[HotelMike]

It could be a permanent split capacitor motor. Google for some wiring diagrams and examples. Measure resistance between all leads to figure out the windings.

SER might be serial number. Model looks like 63K002

 

[henrylr]

The wiring diagram below lists unused leads to be open. The photo of the motor shows the unused leads connected to each other. So I don't know if the connected leads in the motor photo are considered open. What do I do with the unused wires on my motor?

Thanks,
​​​​​​​henrylr

 

[erik a]

If it is like the GE motor on my lathe (which I just rewired), the red and blue are for a reversing motor, using a drum switch.
Erik A

 

[dogdog]

The wiring diagram below lists unused leads to be open. The photo of the motor shows the unused leads connected to each other. So I don't know if the connected leads in the motor photo are considered open. What do I do with the unused wires on my motor?

Thanks,
​​​​​​​henrylr

It's probably some sort of fan motor on a squirrel cage or some sort of ceiling fan... giving the RPM is only 900 and open frame-ish. I would agree with post #2 it's just a multi tap AC motor that give different speed.. looks like 3 speed.

all you have to do is test it and verify the ohms with any decent ohm meter would do..? you have a lead diagram.

start with the white

white + black --> ohm
white + Blue --> ohm
White + Red --> ohm

The one with the highest ohm give you the max speed, and the one with lowest gives least...

Not sure if there are any standard to this. I have a 4 speed fan motor in front of me color wire is a bit different... and it has a capacitor.

 

[firebirdparts]

That's what I would do as well. I agree it must be a fan motor.

 

[henrylr]

Thanks for all the replies but if I connect to the high speed lead are the unused leads connected to each other or not?t

 

[dogdog]

Thanks for all the replies but if I connect to the high speed lead are the unused leads connected to each other or not?t

Just cap them, DO NOT CONNECT them to ANYTHING. ?

or go salvage or buy a 3 speed selector switch.

The controller board I have from my broken fan is nothing more than a controller controlling bunch of relays for different speed with remote. YMMV

Ohm test first just to make sure..

 

[henrylr]

Thanks to all for replies and dogdog thanks for the "just cap them" answer. I checked the ohm values and white>black is 36, white>blue is 49 and white>red is 60. It runs great.

 

[dogdog]

they (Blue, black) are energized when you power white and red. so cap them individually or tape them up really good individually if you are not using them. Looks like a good fan motor for projects.

I think you might have been searching for the wrong string. if Unsure, maybe call them up. I have the worse of luck with people over the phone... you might be a better social engineer.

if you search 63K002 you'll find a reference to D369 replacement motor that looks exactly like yours. Pretty sure you can spend a little time finding a reference.

https://www.cshincorporated.com/d369-open-ventilated-fan-and-blower-duty-1-60-1-100-1-150-hp/

https://www.universalelectricmotors.com/369-1-60-hp-115-volt-369