Air-operated circuit breaker RDW1(DW45) series

voltageAC3-pole

General RDW1 Series circuit breaker is mainly used in rated service current up to 6300A of distribution networks to distribute electric energy and protect lines. ● AC rated current: 630-6300A; ● Short-circuit breaking capacity: 80kA-120kA; ● Rated working voltage below AC690V; ● Both the 3 poles and 4 poles are available; ● Two types:Draw-out type and fixed type; ● Equipped with many types of intelligent controllers with different functions; ● Standards: IEC60947-2, GB14048.2. Operation Conditions • When the ambient air temperature is -5°C to +40°C. the mean value is no greater than +35°C within 24 hours. • Altitude: not higher than 2000m for the installation site. • When the ambient air température is +40°C, the relative humidity of the air shall not be higher than 50%; a higher relative humidity is allowed at a lower température; for example, for the wettest month. the maximum relative humidity averaged shall be 90% while the lowest temperature averaged in that month +20°C. and spécial measures shall be taken for the condensation occasionally produced due to température change. • Pollution grade; Class 3. • The installation category of the breaker's main circuit is IV and the control circuit and auxiliary circuit being III. • The circuit breaker should be installed according to the manual.The vertical tilt angle should not exceed 5°. • If the air circuit breaker is installed in a small compartment of the switch board, the protection grade is up to IP40. Feature a. Intelligent controller types; H type (communication type). M type (standard type), L type (économie type). 2M type (high immunity type) and 2H type (high immunity communication type);