Switching device and control method

A control method, comprising:

• providing a switching device, the switching device comprising:
• an electronic trip unit,
• an actuator,
• a switching mechanism coupled to the electronic trip unit by the actuator,
• a stationary contact,
• a mobile contact connected to the switching mechanism, and
• an alarm module comprising a first relay, a second relay, and a control unit, the control unit comprising a supply voltage input, a reference potential input, and at least one control input;
• providing at least one output signal using the electronic trip unit;
• generating a first and a second control signal, using the control unit, as a function of the at least one output signal;
• setting the first relay as a function of the first control signal;
• and
• setting the second relay as a function of the second control signal.