Product Description:

NEX1-12 indoor high-voltage vacuum circuit breaker is suitable for switching loads of different natures and frequent operations in the power system with three-phase AC 50Hz and rated voltage of 7.2KV~12KV. It can be used in industrial and mining, enterprises, power generation Protection and notification of electrical equipment in factories and substations. It can be equipped with KYN28A-12 (GZS1) and other middle-mounted handcart switch cabinets, and can also be equipped with XGN- □ fixed switch cabinets.

NEX1-12 indoor high-voltage vacuum circuit breaker complies with national standards GB1984 “AC High Voltage Circuit Breaker”, JB3855 “3.6~40.5KV Indoor AC High Voltage Vacuum Circuit Breaker” and IEC60056 “High Voltage AC Circuit Breaker”. Meet DVr403 “10~35KV Indoor High Voltage Vacuum Circuit Breaker Ordering Technical Conditions”.

Item Meaning:

Application Condition:

• Ambient Air Temperature: -40℃~+40℃ / -40℉~+104℉
• Relative Humidity: daily average≤95%；monthly average≤90%
• Altitude: ≤2000m (If the altitude increases, the rated insulation level increases accordingly)
• Earthquake Intensity: ≤8 degree
• Wind Pressure: ≤700Pa (equal to wind speed: 34m/s)
• Pollution Level: Ⅳ
• Maximum Diurnal Temperature Difference: ≤25℃ /77℉
• Installation Environment: no flammable and explosion 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.