circuit breaker (with isolating switch and earthing knife-switch)

Main Technical Parameters:

Usage Conditions:

• Altitude: not more than 2000m;
• Earthquake intensity: not more than 8 degrees;
• Air temperature: -30℃ ~40℃;
• Relative temperature: daily average not more than 95%, monthly average not more than 90%;
• Installation site: It is not suitable for installation in places with frequent severe vibration, water vapor, gas, chemical corrosive deposition, salt spray, dust and dirt and fire, and explosion hazards that obviously affect the performance of the mechanism.