VS1 type indoor high voltage vacuum circuit breaker with the rated voltage of 12kV-36KV and the three-phase alternating current 50Hz, is used to switch on/ off all kinds of electrical load with different nature and suitable for the electrical network construction and reform projects for city network, country network, mining area and railway etc. especially for the fields that takes the frequent operation within the range of working current and have the strict demand on short-circuit drop-out operating times. This product adopts the mechanism and circuit breaker one body design, can be used as a fix installing unit and drawable cart unit. 

This product is in comformity with the standards of IEC 56, B/T3309, GB7675, GB/T11022, JB3855, DL402