Leakage current detection interrupter with self-testing function and over-temperature protection function

A leakage current detection interrupter (LCDI) device with self-testing function, comprising:

• a leakage current detection unit, including a phase wire and a neutral wire for carrying a current from an AC power source and at least one leakage current detection wire for detecting a leakage current of the phase or neutral wire;
• a first phase module, coupled to an input side of the neutral wire and one end of the leakage current detection wire;
• a second phase module, coupled to an output side of the phase wire and another end of the leakage current detection wire,
• wherein the first phase module, the leakage current detection wire and the second phase module form a current path between the input side of the neutral wire and the output side of the phase wire to pass a current during a half cycle of the AC power source,
• wherein the phase protection unit generates a control signal for disconnecting the electrical coupling between the LCDI and a power source under any one of a group of conditions including:
• when a leakage current of the phase or neutral wires is detected by the leakage current detection wire, when the leakage current detection wire is open, and when the phase or neutral wire is open.

A leakage current detection interrupter (LCDI) device comprising:

• input terminals adapted for connecting to a power source;
• a leakage current detection unit, including multiple current-carrying wires and at least one leakage current detection wire for detecting a leakage current of the current-carrying wires;
• a temperature controlled module having at least one temperature controlled switch adapted to be disposed on a device under measurement, the temperature controlled switch being coupled between the leakage current detection wire and either a phase wire or a neutral wire of the current-carrying wires on an output end of the leakage current detection unit, the temperature controlled module changing its connection state based on a detected temperature of the device under measurement;
• a reset switch coupled between input ends of the current-carrying wires and the input terminals for electrically connecting or disconnecting the current carrying wires and the input terminals;
• and
• a switching control circuit for controlling the opening and closing of the reset switch, the switching control circuit being connected to an input end of the leakage current detection wire, the switching control circuit controlling the reset switch to disconnect the current-carrying wires from the input terminals in response to the leakage current detection wire being charged.