Leakage current detection and interruption device and related electrical connectors and electrical appliances

A leakage current detection and interruption device comprising:

• a power line having an input end and an output end;
• a switch module, configured to control a power connection between the input and output ends of the power line;
• a leakage detection module configured to detect a leakage current on the power line and to generate a leakage fault signal when the leakage current exceeds a predefined threshold;
• a power module, configured to supply power to a power input end of the leakage detection module, the power module including at least one first current limiting element coupled in series between the power line and the leakage detection module;
• and
• a driving module, configured to drive the switching module to disconnect the power connection in response to the leakage fault signal, the driving module including at least one first electromagnetic coil and at least one first switching semiconductor device, wherein a current flows through the at least one first electromagnetic coil when the at least one first switching semiconductor device is conductive, and
• wherein a first end of the first electromagnetic coil is coupled to the power line, a second end of the first electromagnetic coil is coupled to a first end of the first switching semiconductor device, a first end of the first current limiting element is coupled to the power line, and a second end of the first current limiting element is coupled to the first end of the first switching semiconductor device via at least one first diode or at least one second current limiting element or both.