Leakage current protection device has short circuit device between output connections switched from high to low impedance state by signal from current difference measurement device

摘要

The device (2) has input connections (3,4) for connection to an electric circuit, output connections (7,8) for connection to a load, connecting lines (5,6) between input and corresponding output connections, a current difference measurement device (9) for detecting and comparing the currents in the connecting lines during operation and a controlled short circuit device (19) between the output connections that is switched from a high impedance state to a low impedance state by a signal from the current difference measurement device.