Product Description:

FZW28F-12 series outdoor boundary vacuum switch is suitable for outdoor three-phase AC power distribution system with rated voltage of 12kV and rated frequency of 50Hz, and is used for opening and closing load current and closing short-circuit current.

It is suitable for substations, industrial and mining enterprises and cities, rural power grid protection cities, rural power distribution networks and places with frequent operations.

The demarcation switch is composed of FZW28-12 vacuum switch and controller, which are electrically connected through aviation sockets and outdoor sealed control cables. It can reliably judge the milliampere zero-sequence current and phase-to-phase open-circuit current inside and outside the detection range, and is suitable for power distribution systems with different neutral point grounding methods.

Item Meaning:

Application Condition:

• Ambient Air Temperature: -40℃~+40℃ / -40℉~+104℉
• Relative Humidity: daily average≤95%；monthly average≤90%
• Wind Pressure: ≤700Pa (equal to wind speed 34m/s)
• Altitude: ≤2000m
• Pollution Level: Ⅳ
• Earthquake Intensity: ≤8 degree
• Maximum Diurnal Temperature Difference: ≤25℃ / 77℉
• Installation Environment: no explosion and flammable hazard, no chemicals, no strenuous vibration
• Notice: please contact us if the application environment is beyond above range.

Main Technical Parameters：

Ordering Instruction:

1.Circuit breaker name, model and order quantity;

2.The rated current and rated short-circuit breaking current of the circuit breaker;

3.The model, name, operating voltage and release type of the equipped operating mechanism;

4.Quantity of operating vehicles and other spare parts and spare parts;

5.If the user has other special requirements, please negotiate when ordering.