VFD & Soft Start Panels

VFD (Variable Frequency Drive)

RPM Controls has been in the VFD (Variable Frequency Drive) business for over 35 years. We have the experience to help with new drive start-ups along with any upgrades that may be required. We can repackage your new drives to meet any environmental conditions so you can be assured of a long, trouble-free life out of your drives. We service what we sell with professional programming and troubleshooting. Let us show you what we can do for you!

VFD Build & Installation

RPM Controls builds and installs VFD Panels that are designed to withstand voltage surges, changing climate conditions, and job-specific space limitations. From small to large panels, we design durable VFD panels to remain dependable in anything from caustic to corrosive environments. As a result, our VFDs can be made airtight whether indoors or outdoors.

Our VFDs are completely programmable and customizable. They can run continuously or can turn on and off as needed. Tap into energy savings by controlling the speed to the motor, and take advantage of safety features as well.

VFD Retrofit

If you have an old, outdated VFD, it is likely time for a new one. Let our team of experts visit your location with a new VFD and install and program it, working with you to meet your current system needs.

Typical VFD Panels We Build:

  • Redundant Bypass Fan Wall Panels
  • Cooling Tower Panels
  • NEMA 3R Irrigation Panels
  • NEMA 4X Outdoor Compressor Panels
  • Duplex and Triplex Lift Stations
  • VFDs with Across The Line Bypass
  • VFDs with Built-in Harmonic Filters

Industries We Serve

  • Wastewater
  • Municipal Water
  • Industrial Factories
  • Metalworking or Aluminum Plants
  • Mines
  • Paper Mills
  • Lumberyards
  • Nuclear Plants

Common VFD Panel Applications

  • Conveyor Belts & Automation
  • Compressors
  • Pumps
  • Fans
  • Wire Creation
  • Wastewater Treatment Plant Upgrades
  • Retrofits

What Are VFDs? (Break Out Box)

VFD stands for variable frequency drive. Also known as AC Drives, these devices are designed to control the speed to a motor. They are used in many applications but typically are used in drilling, pumps, HVAC, and large machine conveyors and compressors.


We proudly represent Danfoss, the second-largest AC Drive manufacturer in the world. Danfoss is the only manufacturer that offers a 10-year on-site warranty for their drives.

Want more information about our VFD Panels? Contact us today to get started!