Siemens GMA121.1U Spring Return Damper Actuator, 62 lb-in (7 Nm), 24 Vac/dc, 2-position Control, 90 sec Run

Siemens GMA121.1U Spring Return Damper Actuator, 62 lb-in (7 Nm), 24 Vac/dc, 2-position Control, 90 sec Run. Siemens OpenAir GMA Series Spring Return Damper Actuator for light to medium-sized HVAC dampers requiring 62 lb-in of torque. For applications requiring the damper to move to a pre-set, fail-safe position in case of power failure.