Looking for a high quality, accurate duct high limit switch made in the USA? Look no further, Firestat has the perfect product for you! Our duct switches come in adjustable or fixed options, operating temperatures of 100°F to 250°F, and probe lengths of 5”, 7.5” and 11”. And best of all, they are made right here in the USA!
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Why do People Care?
As this is a Duct Limit Switch made in the USA, you can be confident that this product will not only be a quality product, but also shipping times can be lower than ordering products from other countries.
Meets requirements in Section 607.3.1. of the North Carolina Mechanical Building Code.
The Firestat Duct Fan and Limit Thermostat Switches operate using the same physics to ensure HVAC safety. A helix bi-metal element senses a rapid temperature change. When the temperature changes the bi-metal expands and triggers a snap action switch and either opens or closes a circuit. These switches are commonly installed in air ducts designed to shut down heating, air conditioning and ventilation equipment in apartment complexes and other multiple dwelling units when air temperature exceeds the set point.