Siemens TH357D LimitEM Remote Bulb Thermostat
Description
The Siemens TH357D LimitEM Remote Bulb Thermostat is a gradual-direct acting thermostat for air temperature control. This pneumatically operated instrument senses a temperature and passes on a pneumatic signal whose pressure is proportional to the temperature senses. The sensing element is liquid filled, and is available in remote and averaging bulb styles.
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