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will a mx321 voltage regulator work in a 30 ek onan machine?


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Old 12-09-2015, 06:23:30 PM
1baker016 1baker016 is offline
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Default will a mx321 voltage regulator work in a 30 ek onan machine?

I have a free MX 321 voltage regulator that came out of a working 150 kW Onan Cummins generator and I'm wondering if I can use it in a 30 ek generator brushless style 12 lead reconnect able 3 phase and single phase output Generator
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Old 12-09-2015, 09:32:10 PM
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Default Re: will a mx321 voltage regulator work in a 30 ek onan machine?

I will check but I don't recall that it will. It is for a PMG system.
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Old 12-10-2015, 12:08:14 AM
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Default Re: will a mx321 voltage regulator work in a 30 ek onan machine?

Thanks for the reply, yeah I knew it was for the pmg but was hoping the input parameters overlapped between the two generators. Even if I have to run them through a step up or down transformer. Just seems like a more robust unit than the options I have on the EK.
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Old 01-22-2016, 05:01:35 PM
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Default Re: will a mx321 voltage regulator work in a 30 ek onan machine?

Bill, any luck? Thanks Dennis
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Old 01-22-2016, 07:12:01 PM
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Default Re: will a mx321 voltage regulator work in a 30 ek onan machine?

Been having that debate with a fellow tech. He thinks it will with some terminals not used. I don't think it will without the isolation transformer and P.M. stator leads. He says he has one to try. Still waiting on him to get back with me.
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Old 01-27-2016, 12:12:47 AM
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Default Re: will a mx321 voltage regulator work in a 30 ek onan machine?

Awesome thanks so much for your help, I have an original voltage regulator board that needs repaired a newer updated board that requires a little rewiring (don't have the instructions for the upgrade kit) and this new style board. So if there were any retrofitting I'd like to use the mx board.
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Old 02-01-2016, 09:59:41 PM
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Default Re: will a mx321 voltage regulator work in a 30 ek onan machine?

Hey Billy, I hope your weekend was a good one. Have you had a chance to hear back from the other tech friend on the mx board? Just saw that you were on and figured I ask. Thanks
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Old 02-01-2016, 10:43:09 PM
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Default Re: will a mx321 voltage regulator work in a 30 ek onan machine?

Last I heard it didn't work. But knowing Tim he will make it work or blow it up.
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