Siemens ET 141 Line Voltage Remote Bulb Thermostat w/ 6 ft. Capillary, SPDT, (100°F to 240°F)

The ET141 remote bulb thermostat incorporates a temperature-sensitive liquid-filled sensing element that actuates precision snap-acting switches through a diaphragm and linkage mechanism. The switches are Single-Pole, Double-Throw (SPDT) snap-acting type, totally enclosed, and are suitable for low or line voltage power switching. These remote bulb thermostats are commonly used for the control of temperature in heating and/or cooling installations. They are used to directly operate two-position damper motor actuators, motor actuated valves, relays, and other similar equipment. Applications include their use as high or low temperature control functions, summer-winter changeover, and the direct control of liquid or air temperatures where two-position (on-off) control is acceptable.