Siemens GND321.1U SKU: GND321.1U $294.81 $775.82 (0)No Reviews yet Quantity -+ Add to Shopping Cart Limited Factory Stock Details Spring Return OpenAir Fire and Smoke Damper Actuator, 53 lb-in, 230 VAC, On/Off Control Signal, 15 Second Run Time, 15 Second Spring Return, NEMA 1 En... Data Sheet Installation Instructions DetailsData SheetInstallation Instructions Back Spring Return OpenAir Fire and Smoke Damper Actuator, 53 lb-in, 230 VAC, On/Off Control Signal, 15 Second Run Time, 15 Second Spring Return, NEMA 1 Enclosure, 3' Standard Cable, 5-Year Warranty ( Minimum Siemens order quantity of $250.) Back Back Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review