Here is our range of PWM motor speed controllers that can be used in a wide variety of applications using DC brushed permanent magnet electric motors. The Porter, DNO, and 4QD controllers are analogue models that provide the main functions at a cost effective price. The Pro series are all digital controllers with multiple user programmable profiles that allow a much greater degree of control over motor performance.

PWM motor speed controllers

To choose the appropriate controller for your application you need to know the operating voltage and current requirements, and also decide whether you need reversing capability. The DNO and Pro-150 models use relays to provide reversing at lower cost, the Pro-160 and 4QD models are full H-bridge controllers without relays to give long term reliability and overload tolerance. If you need a display of voltage, current, and temperature then have a look at the Pro-160¬†or Pro-360. We’ve put together some flow charts on this page which can help you make your selection. Please feel free to give us a call, we’re always happy to talk about how we can help get your motor control project up and running.

  • Pro-160 PWM programmable motor speed controller

    Pro-160: 12V – 84V, 200A, programmable.

    The Pro-160 is the new kid on our block. Its unique detachable LCD display lets you see battery voltage, current, and temperature. It's got inputs for radio control, dead mans handle, slow / fast modes, motor temperature, speed sensing, limit switches and more.
    £240.00£288.00 inc VAT More Info
  • Pro-360 with cover and display adaptor

    Pro-360: 12V – 84V, 360A, programmable.

    The Pro-360 is our new high power controller. The LCD display shows you voltage, current, and temperature. It's got inputs for radio control, dead mans handle, slow / fast modes, motor temperature, speed sensing, limit switches and more. Air and liquid cooled options are available.
    £372.00£399.00 inc VAT More Info
  • motor control, reversing pwm controller for model locomotives

    DNO: Reversing, 12V – 36V, 100A.

    A popular mid-sized controller with built-in reversing suitable for use in 12V to 36V applications.
    DNOs are commonly used in small / mid-sized locos, electric vehicles and industrial applications.
    £96.00£114.00 inc VAT More Info
  • dc motor controller, heavy duty, full bridge, 4 quadrant,

    4QD range: Reversing, 24V – 48V, 300A

    The 4QD-200 and 4QD-300 are heavy duty 4 quadrant motor speed controllers for currents up to 300A. They have now been superceded by our new fully digital and configurable Pro-160 / Pro-360 models.
    £324.00£399.00 inc VAT More Info
  • speed control, single direction, electric motor controller

    Porter: Single direction, 12V – 48V, 100A.

    The Porter range are tough, low cost, single direction controllers that are particularly suitable for karts, golf caddies, electric bikes, equipment handling, and industrial applications.
    £55.50£87.00 inc VAT More Info
  • programmable motor controller, digital pwm control, easy to use

    Pro-150: Reversing, 24v – 48v, 110A, programmable.

    The Pro-150 is a mid-size digital controller, suitable for motor currents up to 110A. It is commonly used in mid-sized locos, golf buggies, and industrial applications requiring more customisation of performance characteristics. The Pro-150 is electrically and mechanically interchangeable with the Pro-120 in most applications.
    £162.00£198.00 inc VAT More Info
  • soft starter, programmable controller, pwm electric motor control

    SST: Single direction 12V – 35V, 30A, Programmable

    A small, low cost, versatile, single direction programmable controller. Based on a Picaxe microcontroller it is suitable for a wide range of motor control projects, particularly those requiring an element of customisation.
    £39.00 inc VAT More Info