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GYL9 type A+EV leakage current circuit breaker is suitable for the protection of AC facilities with charging mode  3,  DC  leakage current of more than 6mA. when there is a residual fault current of more than 6mA in the system, it can automatically cut off the fault power in a very short time. It is used to detect the DC residual current greater than  6mA  in the  AC  system.  According to the   IEC61851  standard,  it should be used with the  RCD with type A residual current protection characteristics, which provides protection against possible ground faults.

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