Description
       VS1 (ZN63A)  -12 series indoor high voltage vacuum circuit breaker is three  phase AC 50Hz indoor high voltage switchgear with rated voltage 12kV, divided  into handcart type and stationary type. This VCB is widely used to power stations,  substations, and industrial and mining enterprises to control or protection  power transmission and distribution systems, specially for the important high  altitude breaking load and frequent operation place and reliable  interlock function.
 The  operating mechanism is for the spring energy storage type, can use AC and DC  energy storage operations. The circuit breaker can be used for extremely  frequent operation place, equipped with KYN28A-12 handcart type switch cabinet,  and the fixed type VCB can also be used for XGN series switch cabinets. It  conforms to National Standard GB1984-2003, and the related IEC standards.
       The circuit breaker is  designed as a front-rear split charging structure, which both can  be used as a fixed installation unit, and also be equipped with the chassis as  used in the mounted, handcart unit.

Environment  Condition:
 - Ambient temperature:-15℃~+40℃
 - Altitude: ≤1000m
 - Daily average relative humidity: ≤95%
 - Monthly average relative humidity: ≤90%
 - Earthquake intensity: ≤8  degree 
 - No fire, explosion, severe vibration, chemical  corrosion and serious pollution

Technical  Data

Outline Dimension