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    JCM3L series residual current circuit breakers are mainly used in power distribution networks with AC 50Hz, rated voltage 400V, and rated current up to 800A. They are used to provide indirect contact protection for people, and can also be used to prevent damage to equipment insulation and ground fault current. It can also be used for infrequent switching of lines and infrequent starting of motors. The conventional leakage protection module with residual current protection circuit breaker has one-phase working power sampling. This series of circuit breakers is three-phase. If any phase is missing, the leakage protection module of the circuit breaker can still work normally; the rated residual operating current and the maximum The opening time can be adjusted on site according to the actual situation; when the phase voltage drops to 50V, the leakage protection module can still work normally; it has the function of leakage alarm output.
    Compliant with standards: IEC60947-2, GB 14048.2.

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    Type and meaning



    The circuit breaker is a new product imported and absorbed foreign advanced electronic leakage circuit breaker. The working current of the leakage protection module is three-phase sampling. The leakage module of any phase can still work normally. The installation size is the same as that of the new plastic case circuit breaker JCM3L Mitsubishi NF and other products. same.
    So the installation is good. Small size, high segmentation ability, short arcing, strong anti-interference, etc. With leakage action indication, the remaining leakage action current (mA) is adjustable in three gears, and the time is adjustable in three gears. It can install accessories such as shunt, auxiliary, alarm, undervoltage and other accessories for customers.

    Technical data


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