NFB - Spring Return Damper Actuator (90 in-lbs Torque)

The NFB series actuators provide true spring return operation for reliable failsafe application and positive close off on air tight dampers. The spring return system provides constant torque (90 in-lb [10 Nm]) to the damper with and without, power applied to the actuator. The NFB series provides 95° of rotation and is provided with a graduated position indicator.