An electrical system responsive to overheating and/or electric arcing of an electrically conductive member, the system comprising: a temperature sensor for sensing the temperature of the electrically conductive member; a first switch to be electrically connected to a power source; an arc sensor for monitoring voltage of the electrically conductive member, the arc sensor electrically connected to the first switch, wherein the first switch in a closed position provides a continuous electrical path through the first switch to the arc sensor, and the first switch in the open position prevents current from moving through the first switch; a temperature controller acting on the first switch to selectively open the first switch; a second switch electrically connecting the temperature sensor to the temperature controller, wherein the second switch in a closed position electrically interconnects the temperature sensor and the temperature controller, and in an open position disconnects the temperature controller and the temperature sensor; a filter and modifying system connected to the arc sensor and acting on the second switch, wherein with the first switch and the second switch in the closed position a first electric path is provided through the first switch to the electrically conductive member and a second electrically conductive path is provided from the temperature sensor, through the second switch, to the temperature controller, wherein the temperature controller opens the first switch when the temperature controller receives a predetermined signal from the temperature sensor, and wherein the filter and modifying system opens the second switch when a signal from the arc sensor indicates a predetermined level of arcing, and the temperature controller responsive to the opening of the second switch opens the first switch,,if the first switch is closed. a temperature sensor for sensing the temperature of the electrically conductive member; a first switch to be electrically connected to a power source; an arc sensor for monitoring voltage of the electrically conductive member, the arc sensor electrically connected to the first switch, wherein the first switch in a closed position provides a continuous electrical path through the first switch to the arc sensor, and the first switch in the open position prevents current from moving through the first switch; a temperature controller acting on the first switch to selectively open the first switch; a second switch electrically connecting the temperature sensor to the temperature controller, wherein the second switch in a closed position electrically interconnects the temperature sensor and the temperature controller, and in an open position disconnects the temperature controller and the temperature sensor; a filter and modifying system connected to the arc sensor and acting on the second switch, wherein with the first switch and the second switch in the closed position a first electric path is provided through the first switch to the electrically conductive member and a second electrically conductive path is provided from the temperature sensor, through the second switch, to the temperature controller, wherein the temperature controller opens the first switch when the temperature controller receives a predetermined signal from the temperature sensor, and wherein the filter and modifying system opens the second switch when a signal from the arc sensor indicates a predetermined level of arcing, and the temperature controller responsive to the opening of the second switch opens the first switch,,if the first switch is closed.