To make a electrical equipment multifunctional by Mitsubishi air circuit breakers which suitable for the feeder protective device

The air circuit breakers have many advantages, that is, to realize the high reliability of switching performance, to extend the area of selective coordination due to expanding of the rated short-time withstand current, to be suitable for main circuit prot

Wide assorted products which is most suitable for protections of an overload and a short circuit.

These are most basic products for the protection of the low voltage circuit. The WS-V series, Mitsubishi's latest LVCBs, prepares various variations including "F-style" of small size breakers and improves the usability of them.

Wide assorted products which is most suitable for protections of an overload, a short circuit and a electric shock in low voltage circuit.

These are most basic products for the protection of the low voltage circuit. The WS-V series, Mitsubishi's latest LVCBs, prepares various variations including "F-style" of small size breakers and improves the usability of them.

The various circuit monitoring and the high energy management of systems are made together with a laborsaving and a space-saving.

Each one of these breakers, MCCB, ELCB or the earth leakage alarm breakers, is combined with a MDU. The MDU, Measuring Display Unit, means a device having functions of measurement, indication, or transferring the circuit data.

The additional function of monitoring of earth-leakage to MCCB or ELCB makes them to useful product.

The earth leakage alarm breaker produces an output of warning without breaking the circuit at the fault of earth leakage. The leakage current measuring display breaker measures a leak current of the circuit and indicates its value on the display. These breakers may monitor the insulation performance of the circuit.

Earth Leakage Alarm Breakers and Leakage Current Measuring Display Breakers

To upgrade a electrical equipment by using products suitable for the particular application or in special environmental conditions.

If it is considered as proper when the standard MCCB/ELCB is not chosen to use in a special characteristic of the load, or various environment conditions, the special breaker is needed.

Circuit Breakers for Use in Particular Applications

Mitsubishi low voltage circuit breakers create a future of the electrical equipments.

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 LVCB have various lineups depending on the electric power market and the machinery.

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Air Circuit Breakers

Air Circuit Breakers (ACB)