Delixi DW17 series air circuit breaker Certificates: CCC, CB, CE, KEMA Standards: GB 14048.2 ,GB ... .4, IEC 60947-2, IEC 6 Delixi DW17 series air circuit breakerCertificates: CCC, CB, CE, KEMAStandards: GB 14048.2 ,GB 14048 ... energy2, switch the circuit infrequently3, protect distribution system, motor, etc. From overload, short circuit, etc. Delixi DW17 1900/2900/3900A series air circuit breaker