OpenAir(TM) GMA Series Spring Return Rotary Electronic Damper Actuator.

Used in constant or variable air volume installations for control of return air, mixed air, exhaust and face and bypass dampers requiring up to 62 lb-in (7 Nm) torque. Designed for applications that require the damper to return to a fail-safe position when there is a power failure. 24 Vac/ 24 Vdc. Modulating 2 to 10 Vdc, Position Feedback, Input Signal Inversion (Direct or Inverse Acting), Output Signal Inversion.