The MX321 is a digital AVR for self-excited alternators, featuring adjustable voltage trim, frequency sensing circuits, and built-in fault diagnostics. It provides ±0.5% regulation and includes protection against over-voltage, reverse power, and over-frequency.
Setup includes potentiometers for voltage/frequency and LED status outputs. Suitable for high-cycle industrial standby applications.
Its plug-and-play form factor replaces analog AVRs, making it ideal for service center upgrades. Widely used in Stamford alternator-based gensets.