Firestat Duct Fan Limit Controls

These firestat limit switches are installed in air ducts to shut down heating, air conditioning and ventilation equipment when air temperature in duct exceeds a pre-set limit.

The Duct High Temperature Limits feature a helix bimetal element that senses rapid increases in duct temperature, such as those caused by fire. The high temperature limit then operates an SPST switch that opens with a rise in temperature. A manual reset button reactivates the temperature limit after the high-temperature condition has cleared. These duct high temperature limits are indispensable in specialized HVAC applications and Building Automation Systems.

Duct Limit Switch Application Details  Firestat Limit Controls Catalog RFQ firestat duct limit controls

TC-7-1-180x180Adjustable Temperature Duct Limit Switch

Firestat models TC-100, TC-105, TC-108 are field adjustable with a temperature range of 100°-250°F… (read more)

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Firestat-Reset2Fixed Temperature Duct Limit Switch

The Models TC-205 Duct High Temperature Limits are Fixed Temp with a 5″ insertion element… (read more)

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Duct Fan Limit Controls