The LMM3Z series plastic case circuit breaker is a new product designed and developed by our company using international advanced technology and has obtained multiple patents. It has the characteristics of small compactness, modularization, high breaking, double breaking points, zero flashover, green and environmental protection. It is suitable for power distribution networks with AC 50HZ, 60Hz, rated operating voltage 690V and below, and rated current 12.5A to 1600A. It is used to distribute electric energy and protect lines and power equipment from overload, short circuit, under-voltage and other faults. It can also be used for infrequent switching of circuits and infrequent starting of motors under normal circumstances.
The LMM3Z series circuit breakers are also equipped with an intelligent controller, which not only increases the selection range of the setting current, but also has a liquid crystal display, overload setting current, short-circuit delay current, short-circuit instantaneous current and tripping time that can be set, short-circuit instantaneous three-stage protection and under-voltage protection; equipped with RS485 communication interface, MODBUS-RTU protocol; DL645 protocol, users can choose according to their needs. Remote signaling: breaking/closing, tripping, alarm and fault status indication; remote control: breaking, closing, reset; telemetry: three-phase current and N-phase current, grounding current, tripping memory function, and functions such as querying tripping record parameters, which further improves the reliability and continuity of power supply. This circuit breaker also has an isolation function (can be used instead of a load switch).
This series of products complies with GB/T14048.2, GB/T 22710, and IEC60947-2 standards, and has passed 3C, CE, and TSE certifications.

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