Normal use environment
◆Ambient temperature: -409C~+40C; Altitude: 2000m and below;
◆The surrounding air can be polluted by dust, smoke, corrosive gas, steam or salt mist, and the pollution level is grade II;
◆The wind speed does not exceed 34m/s (equivalent to 700Pa on the cylindrical surface);
◆Special conditions of use: The circuit breaker can be used under normal conditions different from those specified above. Please negotiate with us for special requirements.