...度影响而电阻率突变，光透射和反射激烈突变，利用这一特性，这种材料也能分别制成热致电学开关，如热敏继电器（thermal relays）．也是制备高速光开关的理想材料。
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Thermal electrical relays 热继电器
Low Thermal EMF Relays 低热起电力继电器
thermal overload relays 热过载继电器
Series Thermal Overload Relays 系列热过载继电器
KSD301 snap action thermostat is small-size bimetal thermostat series with a metal cap, which belongs to thermal relays' family.
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。
All of components come from one brand, from vacuum circuit breakers, air circuit breakers, contactors, thermal relays, drives, PLC, I/O, PMS relays and meters, UPS, sensors and lighting fixtures.
所有元器件均来自一个品牌，包括真空断路器，空气断路器，电流接触器，热继电器，驱动，可编程控制器，输入输出模块，电站管理系统继电器和仪表，不间断电源，传感器和照明器材。
Every machine is equipped with protect travel switch in order to increase safety coefficient for repairing and maintenance. It also has thermal overload relays to protect the motor.
每台机器均配有保护行程开关，为维修、保养增加一份安全系数。且装有热过载继电器，保护电机。
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