Low-voltage Circuit Breakers

Mitsubishi low voltage circuit breakers create a future of the 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.

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Product List

Air Circuit Breakers

Products as the main circuit protective device to make electrical equipment multifunctional.
Molded Case Circuit Breakers

Products for the protection of an overload, short-circuit basically.
Earth Leakage Circuit Breakers

Products for the protection of an overload, short-circuit and earth-leakage basically.
Miniature Circuit Breakers

For small ampere branch circuit, products for the protection of an overload, short-circuit (MCB) and earth leakage (RCCB/RCBO) basically.
Circuit Breakers for Equipment

Products also suitable to install inside the equipment by a small size.
Molded Case Circuit Breakers for DC circuit (up to 1000VDC)

Circuit Breakers mainly used for Photovoltaic power generation system.
UL 489 Listed Circuit Breakers

Mandatory products for overcurrent protection of North American countries.
Molded Case Circuit Breakers with MDU

Products for the detection of information of a circuit - it may be support energy saving of the system.
Circuit Breakers for Use in Particular Applications

Products to be more suitable for the particular application.
Circuit Breakers for Panelboard and Control board

Products suitable for any panelboards and control boards by small size.
Earth Leakage Relays

Products suitable to add the earth-leakage protection to existing systems.
Accessories and Related Components

Products to extend the performance of a breaker by installing it in/on the breaker.
Engineering Software

Calculation and selection software for low-voltage circuit breakers.