Variable Frequency Drives & Digital Phase Converters


A Revolution in Phase Conversion for Center Pivot Irrigation


Phase Technologies has designed a groundbreaking VFD that provides full-featured speed control of the main pump and AuxPower™, an optional, independently controlled phase converter to power the entire center pivot system.

Compared to a rotary phase converter, AuxPower™ provides superior voltage balance, greater efficiency and higher reliability. Reduce labor cost with one integrated panel that provides everything required for center pivot irrigation.


Complete Control Flexibility

  • 2 PID 4-20mA analog inputs
  • 0-5VDC analog input for variable speed  control
  • 4 programmable digital inputs
  • 4 programmable relays
  • Up to 4 psi setpoints for multi-pivot  control
  • MODBUS via RS-485

Voltage Doubling

1LH Series drives utilize a patented single-phase active front end to boost the 240V input and generate 460V three-phase on the output.

This innovative capability eliminates the cost of a transformer and provides significant cost reduction in submersible applications by reducing the size of down-hole motor cables.

Unmatched Customer Service

Phase Technologies understands the impact of down-time in any pumping or irrigation application.

Critical components are all accessible and easily replaced in the rare instance when the drive needs to be serviced.


AUXPOWER™ is only available on the 1LH Performance series VFDs.