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Benshaw soft starters are designed from the ground up to perform dependably … even in the harshest industrial environments. We offer best-in-class solutions for continuous duty applications, hazardous locations/conditions, corrosive environments and high vibration operations.
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Benshaw provides a wide range of standard controls and drives for many industries, offering tailored solutions for even the most complex applications.
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MVRMX Series Medium Voltage Soft Starters

Ratings from 2.3 - 13.8kV up to 25,000HP

Field Proven Solid State Reduced Voltage Starters

Benshaw’s MVRMX Series Soft Starter is a fully integrated, programmable family of Class E2 load break/combination solid state starters. This integrated design includes control and power electronics, bypass and isolation contactors that reduce maintenance and operating costs when compared to other methods.

 Only Benshaw has designed, built and supports more than 40,000 solid state starters, from 2,300 volts to 15kV, for applications ranging from pumps, compressors and chillers to fans and blowers, crushers, chippers and conveyors; for every motor type: induction, synchronous, two-speed, reversing and wound rotor.

The RediStart MVRMX series with MX3 technology is a fully integrated, programmable family of Class E2 load break/combination solid state starters. This integrated design includes control and power electronics, bypass and isolation contactors that reduce maintenance and operating cost when compare to other methods. 
MVRMX

Standard Features

  • Solid state reduced voltage starting
  • Full voltage ATL emergency backup feature
  • NEMA 12 or NEMA 3R enclosure
  • UL 347, Class E-2 combination
  • Load break disconnect switch
  • Class “R” motor fuses
  • Inline vacuum contactor
  • Solid state power poles
  • Vacuum bypass contactor
  • Built-in self-test
  • Digital protection and metering
  • UL zero sequence ground fault
  • 500% FLA for 30 seconds
  • Modbus communications standard

Key Benefits

  • Protect machinery from failure and excessive maintenance caused by mechanical shock during starting or stopping operation.
  • The RediStart MVRMX provides smooth, step-less acceleration and controlled deceleration.
  • Protect electric systems from disruptive voltage drops and power outages caused by motor locked rotor inrush current.
  • The RediStart MVRMX starter precisely controls the current ramp during start up.
  • Protect mission-critical motors from failure or unscheduled outages caused by machine or electrical system faults.
  • The RediStart MVRMX starter provides complete, high performance, coordinated line monitoring, motor control and protection.
 

Jumbo Motor Control Solutions - 7.2kV/15kV

Only Benshaw has a solution for your largest motor needs, up to 16,000 HP  at 6900 V and 25,000 HP at 13800 V. For the largest motor starting applications, Benshaw provides a circuit breaker solution for isolation and protection for the motor. Benshaw’s team of engineers will develop a custom solution for the application. Benshaw provides the flexibility of using existing switchgear, or will source new switchgear from any major vendor,  which provides a seamless transition for maintenance personnel. Customers must provide single-phase control power for controls in this configuration.

MVRMX Combination


Options:
  • Start/Stop Pushbutton
  • Push-To-Test Contact Assembly
  • Hand-Off-Auto Selector Switch
  • Two-Three Position Selector Switch
  • Single-Phase Analog Ammeter w/ CT
  • Meters
  • Communications Devices (Profibus, Ethernet, DeviceNet)
  • RTD Module
  • Ground Fault
  • Overload Relays
  • Live Line Indicators

Contact us to discuss your specific soft starter requirements

Case Studies