Scope of application
GW3B universal DC circuit breaker is suitable for DC systems with rated voltage of DC250V~DC1000V and rated current of 1000-2000A. It is used to distribute electrical energy and protect lines and power equipment from overload, undervoltage, short circuit and other hazards.

This circuit breaker has selective protection function, achieving graded coordination protection and backup protection between circuit breaker levels to reduce the scope of accidents in the power grid. Therefore, it is particularly suitable for protection systems of large capacity DC current power supplies.

The drawer type circuit breaker has an insertable structure, which improves the efficiency of use. Both the main and secondary circuits adopt an insertable structure, omitting the necessary isolating switches for fixed circuits, achieving dual use for one machine. At the same time, it brings great convenience to operation and maintenance, enhances safety, reliability, and flexibility in emergency situations.  

meet the standard
IEC60947-1　GB14048.1
IEC60947-2　GB14048.2 

Technical Specifications