Product Overview

VBT series indoor AC high-voltage vacuum circuit breakers (hereinafter referred to as vacuum circuit breakers) are suitable for protection and control of electrical appliances in three-phase power systems with a frequency of 50 Hz, a rated voltage of 12 kV, and a rated current of 630-4000 A.

With the characteristics of high reliability, convenient operation, and simple maintenance, circuit breakers can be used for central and fixed switchgear as well as oil free transformation. Due to the special advantages of vacuum circuit breakers, they are particularly suitable for frequent operations under rated current or for multiple interruptions of short circuit currents.

It can be widely used in power plants, power grids, metallurgy, petrochemical urban infrastructure construction, such as airports, buildings, subways, etc.