DC Motor Reversing Contactor, Solid-State (DRV-Series)
Solid-State DC Motor Reversing Contactor (up to 200A)
  • Load image into Gallery viewer, DC Motor Reversing Contactor, Solid-State (DRV-Series)
  • Load image into Gallery viewer, Solid-State DC Motor Reversing Contactor (up to 200A)

Solid-State DC Motor Reversing Contactor (up to 200A)

Regular price
Sale price
Regular price
Sold out
Unit price

          DRV- Series DC solid-state reversers offer a retrofit solution for conventional electromechanical reversers. With a solid-state H-bridge construction, the internal structure provides a natural discharge path for back-EMF generated at the motor’s turn-OFF. This results in a switch that is maintenance-free, arc-free, and noise-free.

          DRV- Series are rated up to 1,500VDC, and 200A continuous. While the “standard model” is designed for directional control only, the “advanced model” further allows pulse width modulation up to 5 kHz, enabling speed control, soft start, and soft-stop programs.

Sample Applications

  • Forward & reversing of DC motors & actuators
  • Solar Trackers
  • Cathode/anode electrochemicals
  • Peltier element temperature control
Features & Benefits


  • Maintenance-free, Arc-free, Noise-free,
  • Robustly Built for High Power Loads
  • Cutting-edge PWM Models for Advanced Controls
  • Customizable, contact us for requirements


  • Available Ratings Up to 1.5kVDC and 200A
  • PLC or logic level control methods
  • 2500Vrms Isolation
  • Built-in 200ms Interlock Protection
  • Made in Canada; Semiconductor parts from USA/Taiwan
      Datasheet and Downloads

      DRV-Series Datasheet (PDF)

       Contact us for other requirements.

      Selection Guidelines

      You may submit a technical survey via https://www.nominalcontrols.com/pages/survey1, and a member of our team will get back to you with a recommendation.

      The following guidelines are generally suitable for DC motors <3HP when using DRV-Series solid-state motor reversers.

      • Choose SSR with "rated voltage" at least 2x higher the operating voltage.
      • If the DC motor does not require plugging, choose SSR with "rated current" moderately higher than the motor's inrush current.
      • If the DC motor requires plugging, choose SSR with "rated peak current" moderately higher than the motor's plugging current.
      • When in doubt, a good rule of thumb is to choose a SSR with "rated current" 5-8x higher than the motor's nominal operating current.
      • Size a heatsink based on highest current that will sustains over 1 second. Typically, this is the stall current.
      • Always consider adding a snubber across load terminals. This will help to suppress transients.

      Load: 1/4HP DC Motor
      [Operating Voltage]: 12 VDC
      [Rated Max/Stall Current Draw]: 20.5A
      [Application Details]: light load 8A (nominal current), 40A/50ms (inrush current), 20.5A (rated max/stall current), 100A/150ms (plugging current).

      Choose DRV-Series DC Reversing Contactor:
      with [rated voltage]: ≥3x 12VDC
      with [rated current]: ≥3x 40A(inrush)
      with [rated peak current]: 3x 100A(plugging)

      Contact us for a quote or other requirements: