IEC to NEMA motor conversion? 1

[toygasm4u]

Greetings all! I have a right-angle reducer with a motor of the following characteristics:

3 Phase Dual Voltage
0.75 kW (1 HP)
IEC Frame: 80
Mounting Face: B14

I would like to replace this motor with a 120V, 1 phase, 3/4HP motor, but I am having difficulty finding anything that will crossover with it. Any suggestions?

Thank you for any information,
~M

 

[jraef]

Nor will you.
NEMA frames and IEC frames are completely different. IEC motors are not designed for 120V 1 phase either, they don't have it and typically for export they use 230V since that exists over here as well. You may find someone willing to custom make one for you, but that would be a lot more money that having an adaptor plate machined for you.

You might find something in Japan, they have 100V 1 phase for appliances and such and would use metric frame dimensions. Yaskawa, Hitachi etc., but you would need to search though their stock of domestic motors, which may be difficult if you don't read Japanese. They tend not to translate their web pages intended for domestic consumption.

Another option is to buy a VFD that will accept 120V 1 phase and put out 240V 3 phase, then just use your existing motor. That will solve your frequency difference issue as well. There are plenty of them available on the market in that HP range. here is just an example;

http://www.factorymation.net/s.nl/sc.2/category.13/.f

JRaef.com
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[stardelta]

Its not a big item, it could well be easier to replace the g/box and motor as a unit. Anything stopping you from fitting an IEC frame 1ph motor instead?(assuming you can find the correct speed/power/voltage).

 

[ozmosis]

you might want to check what output speed you need from the final drive. As jreaf mentions,if you are going from 50Hz IEC land to 60Hz NEMA land, then the motor will be running faster and therefore your final output speed will be faster.