Voltage rating: 500/690V Current rating: up to 1250A Temperature range:-5°C to +40°C Height above sea level:≤2000m Humidity: no exceed 50% while temperature is +40°C no exceed 90% while month average temperature no exceed 25 °C Min breaking current: up to 120KA Protecting against short-circuit: type aR Protecting against motor short-circuit: type aM Standard: IEC60269, EN60269 Class of pollution: third class