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2much2 09-24-2010 02:30 PM

finding replacement motor
I have a century electric motor that just smoked. model RS-224-NC4-41 code E Serial #6AL19464 service factor 1.2 115v 25 amp 1750 rpm I have been trying to locate a replacement but am having no luck with cross references or even finding one similar any help would be appreciated:thumbup:

NoHax 09-24-2010 02:51 PM

Although I haven't attempted to look-up the exacts specifics of your Century motor, can you tell us what the motor is used for? Indoor or outside exposed to the elements? Does the motor drive a fan or ??

What type of enclosure and NEMA frame is your old fan motor?

TimPa 09-24-2010 06:59 PM

try grainger.

2much2 09-25-2010 05:56 AM

motor use
It is used indoors but the outside temp here in North Dakota fluctuates from 100 in the summer to - 30 to - 50 in the winter. This is for my shop air compressor it was installed many moons ago by the original owners . it was a homemade setup, I believe it was originally a reefer unit motor. Thank you for responding. To the other person, thank you I will try grainger:thumbsup:

2much2 09-25-2010 06:01 AM

a little lost
type of enclosure? the motor housing itself?
NEMA? Unfamiliar with that term.

diyorpay 09-25-2010 06:36 PM

I've had luck
Just listing a few with easy internet hits:

frenchelectrican 09-25-2010 11:27 PM

Very basic all we need to know the Frame size and NEMA or IEC frame size then go with HP figures if stamped and RPM then from there you can able find a replacement motour.

All the details will be on the nameplate so you can not miss it.


J. V. 09-26-2010 10:25 AM

Like French electrician says, we need to know the frame size. The manufacturer knows you need it too. That's why its not listed on the name plate.
It could be a proprietary motor or a standard motor. The only way to know is by the frame measurements. Using the chart provided in the link, measure your motor and find your frame size. You did ask for help after all. US NEMA motors only. Google "IEC" Frame sizes for European style motors.

You can also take the motor to a motor shop or somewhere like Grainger like Tim said and they can check it for you.

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