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Genuine Stamford Design
12 month warranty
Analog voltage regulator
Self Excited
CE Compliant
Worldwide stock
Tag Model

The MX321TM analogue, 3-phase sensing, permanent magnet generator (PMG) powered automatic voltage regulator (AVR) provides isolation from the effects of non-linear loads, improved motor starting performance and sustained short circuit current.

The MX321TM AVR is provided as standard for the STAMFORD® S6 and HC6 alternators and can also be provided as an option across the STAMFORD® range. To ensure your MX321TM AVR is genuine, purchase it from an authorised STAMFORD | AvK dealer.

Want to increase the life of your alternator, prevent costly downtime and increase uptime? Register for alternator maintenance reminders



AVR Flyer

Why buy genuine?

Genuine AVRs

  • Minimise risk of play and equipment failure
  • Maximise power supply security
  • Matched performance capability to ensure alternator stability
  • Tested to react in emergencies, triggering support protection systems
  • Peace of mind

     Download the STAMFORD | AvK AVR Information