VS1/R-12 Series Indoor High Voltage Vacuum Circuit Breaker With Lateral Operating Mechanism can be operated by two ways:by manual and electromotion operation.The capability is accordance with national standard GB1984-2003,JB3855-1996<3.6-40.5KV Indoor AC High Voltage Circuit Breaker>and relative stipulation of IEC standard 62271-100:2001.

Ambient Condition
Ambient temperature:-25℃—+40℃Ambient humidity:
The average relative humidity of a day:≦95%
The average relative humidity of a month:≦90%
The average saturation steam pressure of a day:≦2.2kpa
The average saturation steam pressure of a month:≦1.8kpa
The height above sea level:≦1000m
Earthquake intensity: not exceed 8 degrees
It should be installed in the place without fire,explosion,serious filth,chemical erosion and violent vibration.

ZN39-40.5 type indoor HV vacuum breaker is used for many kinds of switchgear like JYN1-35 and GBC-35. It is widely used for 40.5kV voltage systems which is accordance with GB1984-2003 standards.
This series include: Vacuum circuit breaker truck, isolation truck and fuse truck.

Structural characteristics:
1. This vacuum circuit breaker adopts compound insulation; it can meet air distance and creepage under normal run condition, and it effectively reduces the dimension of VCB, the overall arrangement is reasonable and simple, with aesthetic appearance.
2. The operating mechanism is adopted CD10II electro-magnetic operating mechanism or CT19N spring operating mechanism, the outlet curve has good adaptation with requirements of vacuum interrupters. It has high reliable with characteristics of long life and easy maintenance.
3. Easy pushing-in or pushing-out of panel for the truck; compulsive mechanical interlock way is adopted; meet the “Five Preventions” function; suitable for varies site and the working sites which have rigorous run condition.

ZN23-40.5C series indoor high voltage vacuum circuit breaker is used for many kinds of switchgears like JYN1-35 and GBC-35 etc. It is widely used for 40.5kV voltage systems which is accordance with GB1984-2003 standards. This series of VCB include: Vacuum circuit breaker truck, isolating truck and PT truck.