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Switchgear - Medium Voltage
Arc-Resistant Metal Clad Switchgear

Arc-Resistant Metal Clad Switchgear

Arc resistant switchgear channels the energy released during an internal arc fault in ways that minimize the potential for injury to personnel and damage to surrounding equipment. Across the line, this switchgear leads the way in arc resistant technology. It's available in ANSI Type 1 or Type 2 construction with no larger footprint than the standard switchgear design. Circuit breakers are interlocked so they cannot be opened, closed or racked to the connected position with the arc resistant door open. This minimizes the opportunity for operator error. But arc resistant protection is important at every step, not just when opening and closing the circuit breaker, so our single-latch doors close and engage in a single action, which provides virtually automatic protection for the operator. The pressure release venting panels are maintenance-free.

Features and Benefits

  • Type 1 and Type 2 configurations available from 4.76 - 38kV.
  • Features may include:
    Front cells and front doors employ unique arc resistant construction
    Rear cells and rear doors employ unique arc resistant construction
    Pressure relief vents on circuit breaker and auxiliary bus compartments
    Pressure relief vents on circuit breaker, main bus and cable connection compartments
    Available with one circuit breaker or auxiliary rollout per section
    Available with one or two circuit breakers per section (maximum 3000A connected load)
    No external openings on front of the equipment that allow the escape of hot gases or debris
    No external openings on any exposed side of the equipment to allow the escape of hot gases or debris
    All entrances into the instrument compartments made with a fitting designed to minimize entrance of gas during a fault
    Closed door racking of circuit breakers
    Closed door racking of all VTs and CPTs
  • Plenum allows for indoor installation.
  • Fully tested to all applicable ANSI, IEEE and NEMA standards.