PM – Full Bridge 4Q Permanent Magnet DC Motor Controller with Regen (12V-120V) (100A-300A)

Electronic Reversing
No Reversing Contactor Needed
Fast Direction Change
High Reliability and Efficiency
Low noise, No arc, No wearing, No life limit
Easy Maintenance



Additional information

Weight 3.8 lbs
ModelNominal VoltageMax Operating VoltagePeak Current
1 Minute
Continuous CurrentWith Regn
Kelly PM Full Bridge Permanent Magnet DC Motor Controller with Regen


  • Intelligence with powerful microprocessor.
  • Synchronous rectification, ultra low drop, and fast PWM to achieve very high efficiency.
  • Electronic reversing.
  • Voltage monitoring on voltage source 12V and 5V.
  • Current limit and torque control. Configurable torque mode and speed mode.
  • Low EMC.
  • LED fault code.
  • Battery protection: current cutback, warning and shutdown at configurable high and low battery voltage.
  • Rugged aluminum housing for maximum heat dissipation and harsh environment.
  • Rugged high current terminals, and rugged aviation connectors for small signal.
  • Thermal protection: current cut back, warning and shutdown on high temperature.
  • Configurable high pedal protection: the controller will not work if high throttle is detected at power on.
  • Brake switch is used to start regen.
  • Support three modes of regenerative braking: brake switch regen, release throttle regen, 0-5V analog signal variable regen.
  • PWM-able Reverse Alarm.
  • Brake Switch for regeneration.
  • Analog Brake Input for continuous variable regeneration.
  • Full Programmable with RS-232. Software upgradable. Free Windows GUI software.
  • Standard PC/Laptop computer to do programming. No special tools needed.
  • User program provided. Easy to use. No cost to customers.
  • No adjustment.

General Specifications:

  • Frequency of Operation: 16.6kHz.
  • Standby Battery Current: <0.5mA.
  • 5V Sensor Supply Current: 40mA.
  • Supply Current, PWR, 150mA.
  • Standard Throttle Input: 0-5 Volts. Producing 0-5V signal with 3-wire pot.
  • Analog Brake and Throttle Input: 0-5 Volts.
  • Reverse Alarm, Main Contactor Coil Driver, Meter.
  • Full Power Temperature Range: 0℃ to 50℃ (controller case temperature).
  • Operating Temperature Range: -30℃ to 90℃ , 100℃ shutdown (controller case temperature).
  • Max Battery Current: Configurable.


Kelly PM Controllers User Manual

Kelly PM Controllers Configuration Program

Kelly PM Assembly Wiring Diagram

Kelly PM Assembly Wiring Diagram (With F-N-R function)