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Low-voltage Circuit Breakers

Low Voltage Circuit Breakers(LVCBs)

Mitsubishi low voltage circuit breakers prolong the lifespan of electrical equipment.

For over a half of a century Mitsubishi low voltage circuit breakers meet the needs of market. Including the WS-V series equipped with a new breaking technology, Mitsubishi Low Voltage Circuit Breakers have various lineups depending on the electric power market and the machinery.

Product List

  • Products for protecting the main circuit, and for making electrical equipment multi-functional.


    • • Air Circuit Breakers (ACB) AE-SW
  • Products mainly for protection against overload and short-circuit.


    • • Molded-Case Circuit Breakers (MCCB) NF
  • Products mainly for protection against overload, short-circuit (MCB) and earth leakage (RCCB/RCBO).


    • • Earth Leakage Circuit Breakers (ELCB) NV
  • For small ampere branch circuits, mainly for protection against overload, short-circuit (MCB) and earth leakage (RCCB/RCBO).


    • • Miniature Circuit Breakers (MCB) BH-D, BH-DN
    • • Residual Current Circuit Breakers (RCCB) BV-D
    • • Residual Current Circuit Breakers with Overload Protection (RCBO) BV-DN
  • Circuit Breakers mainly used in photovoltaic power generation systems.


    • • Molded Circuit Breakers for DC use NF-HD
  • Mandatory products for overcurrent protection in North American countries.


    • • UL 489 Listed Molded Case Circuit Breakers NF-U
    • • UL 489 Listed Molded Case Circuit Breakers with Ground Fault Protection NV-U
  • Products for adapting equipment to a particular application.


    • • Isolation Switches DSN
  • Products for enhancing the performance of a breaker, through installation in/on the breaker.


    • • Internal Accessories AL, AX, SHT, UVT
    • • External Accessories Handle, TC, HL, MD
    • • Breaker Testers

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