Siemens 18" Limitem Direct Acting Rigid Bulb Thermostat (0° to 100°F)

The TH 356 Rigid Bulb Limitem is a pneumatically operated thermostat available either as direct acting or reverse acting in a variety of ranges. The 356 Rigid Bulb Limitem is recommended for use in controlling duct air temperatures such as mixed air or discharge air. It can also be used as a high or low temperature limit control. In unit ventilator applications it is used as a low limit control. When used with a well, it can be used for water temperature control. Features: Copper motor tube and invar steel rod sensing element Two-valve design eliminates wasting of air 18-inch (457 mm) bulb useful where stratification occurs Flange, locknut and screws for duct mounting included