Delixi DW17 series air circuit breaker Certificates: CCC, CB, CE, KEMA Standards: GB 14048.2 ,GB ... more models’ Min. ordering QTY, please check out our web page on alibaba.com, or contact us for detailed information right ... energy2, switch the circuit infrequently3, protect distribution system, motor, etc. From overload, short circuit, etc. Delixi DW17 1900/2900/3900A series air circuit breaker