KSD301系列突跳式温控器是小型双金属片温控器，属温度继电器类器件。利用碟型双金属

片在温度作用下产生瞬间跳动的原理，通过机构的作用，使触点迅速动作，达到断开或接通电

路的目的。其工作温度固定，无须调整；动作可靠干脆，电弧小；使用寿命长；无线电干扰小

。

KSD301 snap action thermostat is small-size bimetal thermostat series with a

metal cap, which belongs to thermal relays’ family. The main principle is that

one function of bimetal discs 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 of the circuit finally. The main

characteristics are the fixation of working temperature, the reliable snap action,