KSD301 thermostat / bimetal thermal protector / KSD301 temperature protector 1. KSD301 temperature protector’s Principle and structure The main principle of KSD series thermostat is that one function of bimetal discs is snap action under the change of sensing temperature. The snap action of disc can push the action of the contacts through the inside structure, and then caused on of off the circuit finally. The main characteristic are the fixation of working temperature, the reliable snap action.
