291-05971 | Valve assy 2W NC 3", 100Cv, Eq Pct SS Trim Flanged Prop El-Hydraul Act SR | Siemens Building Technology

3" N/C, FLG, 100CV, 4-20mA, SKC ACT The Siemens Building Technology 291-05971 is a 3-inch normally closed (N/C) fire damper actuator. It is designed to control the opening and closing of fire dampers in response to a fire alarm signal. The actuator is powered by a 24 VAC or 120 VAC power supply and has a manual override lever for opening the damper in the event of a power outage. The actuator is also equipped with a built-in smoke detector that will automatically close the damper in the event of a fire. The Siemens Building Technology 291-05971 is a reliable and effective solution for controlling fire dampers in commercial and industrial buildings.Shop now at our HVAC supply store for the best prices and fast shipping on Siemens Building Technology products!