An annunciator is connected to the current interrupter such that the annunciator provides an indication when a current flows through the current interrupter.

As the circuit draws a current it closes the current switch.

The current interrupter is configured to interrupt at least a portion of a current flow between the power source and the electrical load based on at least one current interrupt characteristic of the current interrupter.

At least a portion of the heat modifies the at least one current interrupt characteristic of the current interrupter.

The first heat exchange element is disposed above the persistent current switch.

An insulating film is provided on the electrode-structure-side surface of the current interrupter.

The current interrupter is arranged between the electrode structure and the inner surface of the case.

The system may also include an analog circuit component (112) thermally coupled with the current interrupter.

The current interrupter switches from a conducting state to a non-conducting state according to the internal pressure in the case.

The actuator system comprises a transmission link for transmitting kinetic energy from a force provision system to a moveable contact of the current interrupter.

Since, hereby, the off-mains switch may appear as a separate unit, production and logistics are facilitated.

The transmission link has a first end which is mechanically connectable to the moveable contact of the current interrupter and a second end facing away from the moveable contact.

When the switch closes, the current sensing circuit senses current through the switch and upon opening the switch the high voltage of the switch is blocked from the current sensing circuit.

An annunciator is connected to the current interrupter such that the annunciator provides an indication when a current flows through the current interrupter.

As the circuit draws a current it closes the current switch.