Vacuum circuit breakerOutdoor vacuum circuit breaker ZW7-40.5
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The ZW7-40.5 outdoor vacuum circuit breaker is used in three-phase power systems with an alternating current of 50Hz. It is employed to switch on and off load currents, overload currents and short-circuit currents. This product has the advantages of a reasonable design, novel appearance, high safety and reliability, easy maintenance, and long electrical life.