Main Functions

• Adopts vacuum arc extinguishing, featuring strong breaking capacity, long electrical life, and a mechanical life of 10,000 operations.

• Simple structure, maintenance-free, and with a long maintenance-free period.

• Excellent insulation performance and strong pollution resistance.

• Can be equipped with spring or electromagnetic operating mechanisms, offering reliable mechanical performance and suitability for frequent operation.

• Free from fire and explosion hazards.

• Built-in current transformer with a calculation accuracy of 0.2 class, enabling three-phase interactive protection.

• Built-in condensation controller to maintain reliable operation of the circuit breaker under specific temperature and humidity conditions.

Operating Environmental Conditions

• Air temperature: upper limit +40℃, lower limit -30℃.

• Altitude: ≤ 2000m (if higher altitude is required, the rated insulation level shall be increased accordingly).

• Wind pressure: not exceeding 700Pa (equivalent to a wind speed of 34m/s).

• Seismic intensity: 8 degrees.

• Pollution level: Class Ⅲ.

• Maximum daily temperature difference: not exceeding 25℃.