The LMQ2CB automatic transfer switch is a dual power conversion device that uses a circuit breaker as its body and integrates automatic power switching and overcurrent protection functions. Its core advantage is built-in short circuit/overload protection, eliminating the need for additional protective appliances. Comply with IEC 60947-6 standard requirements. This device monitors the voltage status of two three-phase four-wire power supplies. When overvoltage, undervoltage or phase loss is detected, the power switching operation can be completed within 1.5 to 3 seconds, and the mechanical life is up to 10,000 times. The product’s rated operating voltage range is 400V to 690V, and the rated current upper limit is 1250A. It is used in industrial power distribution systems and civil infrastructure fields that require dual power supply protection.

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Features And Functionality Of Controller