New Motortronics Soft Start Medium Voltage

East Coast Electrical Equipment Co. is an authorized Motortronics medium voltage MVC stocking distributor!

We have in our stock new Motortronics MVC Soft Starts at 200, 400 and 600 amps rated for either 2300 or 4160 volts. These starters cover from 200 hp to 5000 hp.

  • AC Supply Voltage

    2300, 3300, 4160, 6000/7200V, 11-15kV
    VAC + 10% to -15%, 50/60 Hz line voltages

  • HP Ratings

    Up to 10,000HP @ 7.2kV (800 Amps max)
    Up to 22,000HP @ 15kV (800 Amps max)

  • Overload Ratings

    500% — 60 seconds
    600% — 30 seconds

Soft start & protect any AC motor

Motor and starter protection is taken to a new level by combining a high-end motor protection relay with a heavy duty solid state starter. Flexible control features and selectable ramping profiles to match any application… no need to compromise performance. High level circuit isolation via fiber optics (standard on all units) for safety and power quality immunity. Sealed NEMA 12 enclosures are standard equipment, not an expensive option.

The MVC Plus Series starter is designed to start AC motors in any fixed speed application. It provides maximum protection with “True Thermal Modeling,” while allowing smooth, stepless control of acceleration and deceleration. The MVC Plus Series guarantees power control and protection for your most important assets.

Heavy-duty attitude highest rated power devices for maximum current carrying capacity. Rated at 500% for 60 seconds, the MVC Plus Series starter will never be the limiting factor in your application. Powerful sustained gate pulse insures reliable SCR firing without reactors (unlike “wimpy” pulse train designs that require a reactor to prevent SCR and motor damage) .


  • Advanced motor protection relay and ramp features programmable via the keypad or a laptop computer
  • Fiber optically isolated low voltage compartment with up to 110kV BIL rating for safety and reliability.
  • Built-in 120V control power transformer*; voltage and current metering.
  • Load-break / fault-make rated disconnect switch with door safety interlocking.
  • Visible grounding bar for safe operation.
  • Coordinated motor fuses with blown fuse indicators.
  • Line isolation vacuum contactor.
  • Fully rated bypass contactor for increased thermal capacity and optional across-the-line starting.
  • Heavy duty SCR stack assemblies with ring transformer isolation for reliable SCR gate firing.
  • RTD Option accepts up to 12 RTD inputs.
  • Top entry, bottom exit with room for stress cones.
  • Removable entry plates for easy connections.
  • NEMA 12 gasketed enclosure (NEMA 3R optional).

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