Combined leakage protection device

A combined leakage protection device comprising:

• an input end, configured to be coupled to a power supply;
• an output end, configured to be coupled to an electrical load;
• a circuit breaker module, having a disconnected state and a connected state, which respectively disconnects and connects an electrical connection between the input end and the output end;
• and
• a ground fault circuit interrupter module, including a housing, a ground fault signal processing unit, and a drive assembly and a locking device couple to the ground fault signal processing unit, disposed inside the housing;
• wherein the drive assembly is in a first position or a second position under control of the ground fault signal processing unit;
• and
• wherein the locking device is attached to the circuit breaker module and has a locked state and an unlocked state, wherein the locking device is mechanically linked to the drive assembly to switch between the locked state and the unlocked state.