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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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MV Load Break Interrupter Switches

Reliable Protection for Medium Voltage Systems

Benshaw Medium Voltage Load Break Switches deliver reliable disconnect and short-circuit protection for a wide range of medium voltage applications. Built in rugged, NEMA-rated enclosures, Benshaw switches are designed for use as standalone units, in equipment lineups, or integrated into MCC systems.

With compact and low-profile options for space-constrained environments, dual-switch configurations for added flexibility, and line-of-sight safety features for maintenance personnel, Benshaw offers a complete range of load break solutions to meet the demands of heavy-duty industries.

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MVDISC

Configurations

MVDISC Series
FVMD Series
CFMVDISCDH Series

MVDISC Series Medium Voltage Load Break Interrupter Switch

Benshaw’s free-standing MVDISC Series Medium Voltage Load Break Interrupter Switch is the latest design in medium voltage high current switching equipment for a wide range of applications. The fused interrupter switch provides an economical means of disconnect and short circuit protection for medium voltage loads such as transformers, single circuit or multi-circuit systems. The switch is provided in a NEMA rated enclosure configured for use as a standalone unit, in an equipment line-up or MCC.
Standard Features
  • Load break fault make
  • 60kV BIL up to 7.2kV, 90kV BIL for 15kV
  • Symmetric fault ratings of 50kA for 2.4 — 7.2kV
  • NEMA 12 enclosure
  • Viewing window to verify switch position
  • Enclosure MV door interlocked with switch mechanism to prevent access while switch is on
  • Operating mechanism lockable in the off position
  • Load side grounding in off position
  • Blown fuse indication
  • Welded 11 gauge steel construction
  • Enclosure finish meets ASTM A252-9 or A525-83, G-90 designation
  • Line and load landing pads with NEMA bolt pattern
Key Advantages
  • Bolts directly to Benshaw MCC line-up or starter
  • UL labeled up to 4800 volts
  • Available in 400, 600 and 1200 amp ratings
  • Available up to 13800 volts
  • Class E fusing included*
  • Configurable with added options
  • Load break rated

* For use on motor loads, Class R fuse will be provided and must be specified by customer

FVMD Series Load Break Interrupter Switch

Benshaw has developed a small footprint load break disconnect switch that is ideal for servicing your existing equipment. Benshaw’s cost effective solution allows customers to put a maintenance disconnect directly next to the equipment using the smallest possible footprint. Using a Benshaw FVMD Series Load Break Interrupter Switch, maintenance and service employees will have line-of-sight visibility to ensure that power is off and connected equipment is safe to service. The low profile design is ideal for environments where height is a concern, particularly in mining.

Standard Features

The standard medium voltage combination “FVMD” package includes:

  • Load break fault make
  • 60kV BIL
  • Symmetric fault rating of 50kA for 2.4 — 5kV Class
  • NEMA 12 or 3R Enclosure
  • Top cable entry/bottom cable exit
  • Disconnect switch:
    – Flange handle
    – Load break/fault make
    – Grounding bar
    – Viewing window
  • Individual fusing:
    – Class “E”
    – Blown fuse indication
Key Advantages
  • Compact design
  • Available up to 600A full rated amps
  • Class E fusing included
  • Load break rated
  • Bus available for line-ups

CFMVDISCDH Series Dual Load Break Interrupter Switch

Benshaw is now able to offer the same rugged and reliable disconnect design, but in a smaller package for your smaller current needs. Enclosures are available in NEMA 1 and NEMA 12 configurations. The enclosure consists of two distinct compartments that are completely isolated for maintenance. Standard combination CFMVDISCDH Series Dual Load Break Interrupter Switches are supplied with individual load break/fault make disconnect isolation switches, and Class “E” fuses available up to 200E.

Standard Features

The standard dual medium voltage combination “DISCDH” package includes:

  • Load break fault make
  • 60kV BIL
  • Symmetric fault rating of 50kA for 2.4 — 5kV Class
  • NEMA 12 enclosure
  • Two disconnect switches:
    – Flange handle
    – Load break/fault make
    – Grounding bar
    – Viewing window
  • Individual fusing:
    – Class “E” up to 200E max.
    – Blown fuse indication
Key Advantages
  • Bolts directly to Benshaw MCC line-up or starter
  • Available up to 200A full rated amps
  • Class E fusing included
  • Load break rated
  • Compact designs saves space

Contact us to discuss your specific requirements with the Benshaw team

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