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| MX321 AVR | Generic Replacement for Cummins MX321 Automatic Voltage Regulator for Generator | 2 Year Warranty!

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$102.99

$ 45 .99 $45.99

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  • CUMMINS is a registered trademark of Cummins, Inc. - 2 Year Warranty!
  • Voltage: 190 - 264V ac max, 2 or 3 phase. Frequency: 50 - 60 HZ nominal
  • POWER INPUT: (PMG) Voltage: 170-220V ac max, 3 phase, 3 wire. Current: 3A/phase. Frequency: 100 - 120 Hz nominal
  • OUTPUT: Voltage: max 120V dc Current: continuous 3.7 A. Intermittent 6A for 10 secs. Resistance: 15 ohms minimum
  • REGULATION +/- 0.5% RMS with 4% engine governing
  • THERMAL DRIFT 0.02% per deg. C chance in AVR ambient. SOFT START RAMP TIME 0.4 - 4 seconds


EXACT GENERIC REPLACEMENT MX321 - 2 Year Warranty! Is a two phase sensed Automatic Voltage Regulator and forms part of the excitation system for a brush-less generator. Excitation power is derived from a three-phase permanent magnet generator (PMG), to isolate the AVR control circuits from the effects of nonlinear loads and to reduce radio frequency interference on the generator terminals. Sustained generator short circuit current is another feature of the PMG system. SENSING INPUT Voltage: 190 - 264V ac max, 2 or 3 phase Frequency: 50 - 60 HZ nominal POWER INPUT (PMG) Voltage: 170-220V ac max, 3 phase, 3 wire Current: 3A/phase Frequency: 100 - 120 Hz nominal OUTPUT Voltage: max 120V dc Current: continuous 3.7 A Intermittent 6A for 10 secs. Resistance: 15 ohms minimum REGULATION +/- 0.5% RMS with 4% engine governing THERMAL DRIFT 0.02% per deg. C chance in AVR ambient SOFT START RAMP TIME 0.4 - 4 seconds TYPICAL SYSTEM RESPONSE AVR response 10 ms Field current to 90% 80 ms Machine Volts to 97% 300 ms


Stargazer
Reviewed in Canada on April 9, 2025
I had one fail after 30 days and tried to contact the seller on their website (they leave a little card in the box), filled out their form, etc and it immediately told me an error occurred. Tried again a few days later, same thing, so switched browsers and same thing. I would not really recommend buying from them.
Customer
Reviewed in the United States on May 18, 2021
It was good, called and got some help