Skip to main content
Genuine STAMFORD design
12 month warranty
Digital voltage regulator
PMG or Auxiliary Winding
CE Compliant
Worldwide stock
Tag Model

The MX321 is an analogue, 3-phase sensing, permanent magnet generator (PMG) powered automatic voltage regulator (AVR) providing isolation from the effects of non-linear loads, improved motor starting performance and sustained short circuit current.

The MX321 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 MX321 is genuine, purchase it from an authorised STAMFORD® | AvK® dealer.
Part number: E000-23212/1P



Why buy genuine?

  • 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