Belimo EFB120-S N4 Damper Actuator, 270 in-lb [30 Nm], Spring return, AC 100...240 V / DC 100...125 V, On/Off, 2 x SPDT, NEMA 4

Belimo EFB120-S N4 Damper Actuator, 270 in-lb [30 Nm], Spring return, AC 100...240 V / DC 100...125 V, On/Off, 2 x SPDT, NEMA 4. The EF..24 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 to the damper with, and without, power applied to the actuator