A circuit breaker assembly can include a mechanism configured to be actuated by an operator toward a first position. The mechanism can be configured to move between the first position and a second position to change a state of a contactor between a closed state and an open state. The assembly can include a position sensor system configured to sense a position of the mechanism between the first position and the second position.

A remote switch actuator includes an actuator housing having a push plate coupled to a pair of actuator pins, the push plate having a first state where the push plate is disposed about an end of an actuation path and a second state where the push plate is disposed about an opposed end of the actuation path. The remote switch actuator may further include at least one sensor positioned within the actuator housing and configured to continuously detect the position of the push plate along the actuation path. The remote switch actuator may further include a switch controller communicatively coupled to the actuator housing and the at least one sensor and having a user interface configured to display the position of the push plate sensed by the at least one sensor.

An electrical protection system has connection terminals, separable electrical contacts, a switching mechanism and at least one power switch connected in series with the separable electrical contacts, the switching mechanism including a displaceable control member. The electrical protection system further includes an electronic control circuit coupled to the at least one power switch and a sensor coupled to the control member for measuring a position of the switching mechanism. The electronic control circuit is configured to switch the at least one power switch to a blocking state when the sensor detects that the switching mechanism reaches a position preceding a position in which the electrical contacts separate.