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starters
  Medium Voltage RVSS
Fiber optic firing, and programmable MX3 controllers deliver unprecedented functionality and performance
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Built-To-Order
Engineered-To-Order
Medium Voltage ATL
Fiber optic firing, and programmable MX3 controllers deliver unprecedented functionality and performance
Low Voltage RVSS
Standard and engineered starter packages - low and medium voltage controls, including a wide range of RVSS and ATL starters
Low Voltage ATL
Contactors available of the highest mechanical and electrical ratings with user-friendly features
Pump Control Panels
Available for a wide range of applications, also available with a completely integrated combination fusible disconnect for plug-and-play convenience
Power Quality
Industry leading factor correction capacitors include housed integrated as well as automatic correction units
 
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Prepackaged Solid State Starters with ATL Bypass
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MVRXE Series
Smooth stepless motor acceleration in a free standing enclosure

Benshaw's MVRXE Series is a family of microprocessor controlled solid state reduced voltage starters for three phase induction motors. MVRXE Series starters provide a closed-loop current ramp for smooth stepless motor acceleration and are supplied in a free standing enclosure.

Prepackaged Solid State Starters with ATL BypassMVRXE Series starters provide solid state reduced voltage starting for normal operation and full voltage emergency back-up starting, with complete motor protection at the flip of a switch. This unique redundant design is ideal for critical applications where downtime is extremely disruptive and cannot be tolerated.

MVRXE enclosures are available in NEMA 12 or NEMA 3R configurations. Each MVRXE enclosure consists of two distinct compartments. The medium voltage or power pole section is located in the main body of the enclosure, while a low voltage section containing control logic is located behind the door as an isolated compartment.

Each MVRXE Series starter is supplied with a load break isolation switch, Class "R" motor fuses, inline vacuum contactor, solid state power poles, and a vacuum bypass contactor, which is used to bypass the SCR power poles once the motor is up to full speed. The MVRXE Series' logic control incorporates a micro computer which has all the circuitry required to drive the power semi-conductors located in the power section.

Key advantages include:

  • NEMA 12, redundant solid state starter
  • Benshaw MX3 controller
  • 45/60KV BIL
  • 8,000 PIV - UL347 certified and listed at 2.4KV to 1500HP (max 360A)
  • 12,000 PIV - UL347 certified and listed at 4.2KV to 3000HP (max 360A)
  • 200MVA (2300VAC) / 350MVA (5000VAC) short circuit fault rated
  • 350% - 500% - 30 seconds rated
  • Fixed mounted, start duty rated vacuum contactors for isolation and SCR bypass, wired for normal bypass operation and full voltage start operation, with (2) N/O and (2) N/C auxiliary contacts
  • Modbus communications standard
  • Service entrance labeled
  • Built-In-Self-Test (BIST) for "quick commissioning"
  • Fiber optic firing
  • Selectable solid state or full voltage operation via selector switch mounted inside the low voltage compartment
  • 400A load break, 5KV rated disconnect switch, with viewing window, grounding assembly and lockable handle mechanism
  • Load matched Class R fusing with blown fuse indication
  • Fixed mounted, start duty rated vacuum contactors for isolation and SCR bypass, wired for normal bypass operation and full voltage start operation, with (2) N/O and (2) N/C auxiliary contaacts
  • Separately mounted SPE Series overload device
  • 120VAC, 1000VA CPT with primary and secondary fusing
  • Door-mounted start/stop/reset pushbuttons, LCD keypad and local-off-remote switch
  • Terminal strip included for remote start/stop control and up-to-speed indication
  • Modbus communications

 
Brochures
2013 Product Catalog (13500Kb)
Medium Voltage Controls (1800Kb)
 
Documentation
Remote RTD Manual (1200Kb)
RediStart Solid State Starter User Manual with MX3 Control (MVRMX & MVRXE Models) (3800Kb)
RediStart Solid State Starter User Manual with MX3 Control (MVRMX & MVRXE Models) - Spanish (3200Kb)
MX2 Control Quickstart Reference Guide For The Integral LED/LCD Display (3500Kb)
MX3 Control Quickstart Reference Guide For The LCD Display (5500Kb)
RediStart Solid State Starter User Manual with MX3 Control (MVRMX36 Models) 10KV to 13.8KVAC (4200Kb)
RediStart Solid State Starter Modbus Register Map MX2 Control Manual (126Kb)
Redi-Start MVRMX Medium Voltage Solid State Reduced Voltage Starter with MX3 Control Specification Guide (447Kb)
MXDE3 DeviceNet & Ethernet Communications Module User Guide (4200Kb)
MXPB3 Profibus Communications Module User's Manual (3100Kb)
IntelliGuard 425 Amp Load Break Disconnect Switch User Guide (1100Kb)
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