Siemens GGD121.1U/PS Spring Return OpenAir Fire Smoke Damper Actuator, 142 lb-in [New]

Siemens GGD121.1U/PS Spring Return OpenAir Fire and Smoke Damper Actuator, 142 lb-in, 24 VAC, On/Off Control Signal, 15 Second Run Time, 15 Second Spring Return, NEMA 1 Enclosure, 3' Standard Cable, Landis and Gyr Professional Series. Siemens. Siemens. GGD121.1U/PS.