The YCW1i series intelligent universal circuit breakers are designed for AC 50Hz distribution networks with a rated voltage up to 400V/690V. Covering a comprehensive current range, they serve to distribute electrical energy and provide reliable protection against overload, undervoltage, short circuit, and single-phase grounding faults. The series features intelligent protection functions with precise selectivity, enhancing power supply reliability and preventing unnecessary outages. Equipped with an open communication interface, these breakers support remote monitoring and control (“four remotes”), making them suitable for integration into modern automation systems and control centers. Compliant with IEC 60947-2 standards, they can also be used for infrequent line switching under normal operating conditions.

General
YCW3 series air circuit breakerthereinafter calledACB)issuitable for the circuitof AC50Hz/60Hz with ratedservicevoltage 400V,690V and ratedservicecurrent between200A and 6300A.Itis mainly used to distribute electric energy and protect circuitsand electric equipment against over-load,under-voltage,short-circuit and singlephase earthingfault.

YCW9X-1600 integrated circuit breaker is one of the new circuit breakers developed using advanced technology. This product is suitable for general distribution systems, new energy distribution systems, multi-energy distribution networks, inverters and distributed power rotation. It has isolation function, small size, high breaking capacity and other multi-functional features for grid-connected operation and protection of motor power supplies.

General
YCW1 series intelligent air circuit breakers (hereinafter called ACB) are applied for the network circuit of AC 50Hz, rated voltage 400V, 690V and rated current between 630A and 6300A. Mainly used for distributing energy and protecting the circuit and power supply device against short-circuit, undervoltage, single-phase ground fault, etc. The ACB has intelligent protection function and the key parts adopt intelligent release. The release can make the accurate selective protection, which can avoid cutting off the power and improve the reliability of power supply. The products conform with IEC60947-1,IEC60947-2 standards.