Vacuum circuit breaker device for insulated metal enclosed switch apparatus

The utility model discloses a vacuum circuit breaker device for an insulated metal enclosed switch apparatus. The vacuum circuit breaker device comprises an insulation vacuum circuit breaker and an operating mechanism. The operating mechanism is connected with the insulation vacuum circuit breaker and drives the insulation vacuum circuit breaker to run, the insulation vacuum circuit breaker is an insulation clamp plate type vacuum circuit breaker, and the insulation clamp plate type vacuum circuit breaker is mounted on a sealing plate and is hermetically driven by the operating mechanism mounted at the other end of the sealing plate, so that on and off operation of the insulation clamp plate type vacuum circuit breaker can be carried out. The vacuum circuit breaker device has the advantages that the vacuum circuit breaker device is provided with the insulation clamp plate type vacuum circuit breaker utilizing environment-friendly pure nitrogen which is an insulating medium, is simple in structure, easy to install and debug, short in phase spacing and high in reliability, is integrally small relatively, is good in insulation performance owing to the environment-friendly pure nitrogen which is the insulating medium, and is practical and environment-friendly, and parts of the vacuum circuit breaker device are few.