Indoor Vacuum Circuit Breakers (I-VCB)

METTZ Group puts large effort into developing and manufacturing its medium-voltage circuit-breakers to the highest possible standards, enabling them to withstand the toughest climates and function reliably in practically every kind of environment. Our circuit breaker research and development center is in China and UK.

Vacuum Circuit Breaker must make and break all currents withing the scope of their ratings, from small inductive and capacitive load currents up to the short-circuit current, and this under all fault conditions in the power supply system such as earth faults, phase opposition and so on.

Indoor vacuum circuit-breakers control all switching duties in medium-voltage distribution systems and are suitable for installation in all customary, new, air-insulated medium-voltage switchgear types as well as for retrofitting existing switchgear.

They are applicable for operation of e.g. overhead lines, cables, transformers, capacitors and motors. The comprehensive installation accessories enable easy integration in the panel, and form – maximally equipped as a withdrawable module with earthing switch – almost the complete circuit-breaker compartment inside the switchgear.

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