Spring Return Damper Actuators
- Comprehensive torque offering (22 in-lbs to 270 in-lbs) over a vast selection of actuators for a wide range of applications.
- True mechanical spring return, providing reliable fail-safe.
- Manual override crank eases installation (all EF, AF and NF series only).
- Low power consumption provides higher efficiency and smaller transformer sizing.
- Minimum torque guaranteed over entire specified operating range, no loss in performance due to temperature or supply voltage.
- MFT is available in all spring return actuators, giving the user the flexibility to customize and
adapt a single actuator to various controllers and applications.
Applications
Belimo actuators are designed for use in a wide variety of HVAC damper applications. With our comprehensive torque range and the ability to direct mount on standard damper shafts or jackshafts, solutions are available for control dampers, air handlers, economizer units, VAV terminal units, fan coil units, fan shutters and unit ventilators.
270 in-lbs (EF Series)
The EF spring return actuator utilizes rugged components in a pressure cast aluminum housing for added strength and reliability. It offers a high torque output of 270 in-lbs and a NEMA 4 option to meet tough environmental conditions found in many HVAC applications.
270 in-lbs [30 Nm]
Approximately 66 square feet
Run time 60…150 seconds
Spring Return <20 seconds
Torque 270 in-lbs [30 Nm]
Damper Area up to 66 sq. ft
| Model # (Description) | Power Supply | Control Input | Torque | Auxiliary Switch |
|---|---|---|---|---|
| EFB120 Damper Actuator,270 in-lb,Spring Return,100 to 240V,On/Off |
100...240 VAC +10% / -20%, 50/60 Hz, 100…125 VDC ± 10% | On/Off | 270 in-lbs [30 Nm] minimum | |
| EFB120-S Damper Actuator,270 in-lb,Spring Return,100 to 240V,On/Off,SW |
100...240 VAC +10% / -20%, 50/60 Hz, 100…125 VDC ± 10% | On/Off | 270 in-lbs [30 Nm] minimum | 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 85° |
| EFB120-S N4 Damper Actuator,270 in-lb,Spring Return,100 to 240V,On/Off,SW,NEMA 4 |
100...240 VAC +10% / -20%, 50/60 Hz, 100…125 VDC ± 10% | On/Off | 270 in-lbs [30 Nm] minimum | 2 x SPDT 3A resistive (0.5A inductive) @ 250 VAC, one set at +10° and one set at 85° |
| EFB24 Damper Actuator,270 in-lb,Spring Return,24V,On/Off |
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% | On/Off | 270 in-lbs [30 Nm] minimum | |
| EFB24 N4 Damper Actuator,270 in-lb,Spring Return,24V,On/Off,NEMA 4 |
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% | On/Off | 270 in-lbs [30 Nm] minimum | |
| EFB24-MFT Damper Actuator,270 in-lb,Spring Return,24V,MFT |
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% | MFT (Configurable) | 270 in-lbs [30 Nm] minimum | |
| EFB24-MFT-S Damper Actuator,270 in-lb,Spring Return,24V,MFT,SW |
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% | MFT (Configurable) | 270 in-lbs [30 Nm] minimum | 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 85° |
| EFB24-MFT-S N4 Damper Actuator,270 in-lb,Spring Return,24V,MFT,SW,NEMA 4 |
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% | MFT (Configurable) | 270 in-lbs [30 Nm] minimum | 2 x SPDT 3A resistive (0.5A inductive) @ 250 VAC, one set at +10° and one set at 85° |
| EFB24-S Damper Actuator,270 in-lb,Spring Return,24V,On/Off,SW |
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% | On/Off | 270 in-lbs [30 Nm] minimum | 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 85° |
| EFB24-S N4 Damper Actuator,270 in-lb,Spring Return,24V,On/Off,SW,NEMA 4 |
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% | On/Off | 270 in-lbs [30 Nm] minimum | 2 x SPDT 3A resistive (0.5A inductive) @ 250 VAC, one set at +10° and one set at 85° |
| EFB24-SR Damper Actuator,270 in-lb,Spring Return,24V,Modulating |
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% | 2-10 VDC | 270 in-lbs [30 Nm] minimum | |
| EFB24-SR N4 Damper Actuator,270 in-lb,Spring Return,24V,Modulating,NEMA 4 |
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% | 2-10 VDC | 270 in-lbs [30 Nm] minimum | |
| EFB24-SR-S Damper Actuator,270 in-lb,Spring Return,24V,Modulating,SW |
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% | 2-10 VDC | 270 in-lbs [30 Nm] minimum | 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 85° |
| EFB24-SR-S N4 Damper Actuator,270 in-lb,Spring Return,24V,Modulating,SW,NEMA 4 |
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% | 2-10 VDC | 270 in-lbs [30 Nm] minimum | 2 x SPDT 3A resistive (0.5A inductive) @ 250 VAC, one set at +10° and one set at 85° |
| EFCX120-S N4 Damper Actuator,270 in-lb,Spring Return,100 to 240V,On/Off,SW,NEMA 4 |
100...240 VAC +10% / -20%, 50/60 Hz, 100…125 VDC ± 10% | On/Off | 270 in-lbs [30 Nm] minimum | 2 x SPDT 3A resistive (0.5A inductive) @ 250 VAC, one set at +10° and one set at 85° |
| EFCX24-S N4 Damper Actuator,270 in-lb,Spring Return,24V,On/Off,SW,NEMA 4 |
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% | On/Off | 270 in-lbs [30 Nm] minimum | 2 x SPDT 3A resistive (0.5A inductive) @ 250 VAC, one set at +10° and one set at 85° |
| EFX120 Damper Actuator,270 in-lb,Spring Return,100 to 240V,On/Off |
100...240 VAC +10% / -20%, 50/60 Hz, 100…125 VDC ± 10% | On/Off | 270 in-lbs [30 Nm] minimum | |
| EFX120-S Damper Actuator,270 in-lb,Spring Return,100 to 240V,On/Off,SW |
100...240 VAC +10% / -20%, 50/60 Hz, 100…125 VDC ± 10% | On/Off | 270 in-lbs [30 Nm] minimum | 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 85° |
| EFX120-S N4 Damper Actuator,270 in-lb,Spring Return,100 to 240V,On/Off,SW,NEMA 4 |
100...240 VAC +10% / -20%, 50/60 Hz, 100…125 VDC ± 10% | On/Off | 270 in-lbs [30 Nm] minimum | 2 x SPDT 3A resistive (0.5A inductive) @ 250 VAC, one set at +10° and one set at 85° |
| EFX120-S N4H Damper Actuator,270 in-lb,Spring Return,100 to 240V,On/Off,SW,NEMA 4H |
100...240 VAC +10% / -20%, 50/60 Hz, 100…125 VDC ± 10% | On/Off | 270 in-lbs [30 Nm] minimum | 2 x SPDT 3A resistive (0.5A inductive) @ 250 VAC, one set at +10° and one set at 85° |
| EFX120-SR N4 Damper Actuator,270 in-lb,Spring Return,100 to 240V,Modulating,NEMA 4 |
100...240 VAC +10% / -20%, 50/60 Hz, 100…125 VDC ± 10% | 2-10 VDC | 270 in-lbs [30 Nm] minimum | |
| EFX120-SR-S N4 Damper Actuator,270 in-lb,Spring Return,100 to 240V,Modulating,SW,NEMA 4 |
100...240 VAC +10% / -20%, 50/60 Hz, 100…125 VDC ± 10% | 2-10 VDC | 270 in-lbs [30 Nm] minimum | 2 x SPDT 3A resistive (0.5A inductive) @ 250 VAC, one set at +10° and one set at 85° |
| EFX24 Damper Actuator,270 in-lb,Spring Return,24V,On/Off |
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% | On/Off | 270 in-lbs [30 Nm] minimum | |
| EFX24-MFT Damper Actuator,270 in-lb,Spring Return,24V,MFT |
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% | MFT (Configurable) | 270 in-lbs [30 Nm] minimum | |
| EFX24-MFT-S Damper Actuator,270 in-lb,Spring Return,24V,MFT,SW |
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% | MFT (Configurable) | 270 in-lbs [30 Nm] minimum | 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 85° |
| EFX24-MFT-S N4 Damper Actuator,270 in-lb,Spring Return,24V,MFT,SW,NEMA 4 |
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% | MFT (Configurable) | 270 in-lbs [30 Nm] minimum | 2 x SPDT 3A resistive (0.5A inductive) @ 250 VAC, one set at +10° and one set at 85° |
| EFX24-MFT-S N4H Damper Actuator,270 in-lb,Spring Return,24V,MFT,SW,NEMA 4H |
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% | MFT (Configurable) | 270 in-lbs [30 Nm] minimum | 2 x SPDT 3A resistive (0.5A inductive) @ 250 VAC, one set at +10° and one set at 85° |
| EFX24-S Damper Actuator,270 in-lb,Spring Return,24V,On/Off,SW |
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% | On/Off | 270 in-lbs [30 Nm] minimum | 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 85° |
| EFX24-S N4 Damper Actuator,270 in-lb,Spring Return,24V,On/Off,SW,NEMA 4 |
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% | On/Off | 270 in-lbs [30 Nm] minimum | 2 x SPDT 3A resistive (0.5A inductive) @ 250 VAC, one set at +10° and one set at 85° |
| EFX24-S N4H Damper Actuator,270 in-lb,Spring Return,24V,On/Off,SW,NEMA 4H |
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% | On/Off | 270 in-lbs [30 Nm] minimum | 2 x SPDT 3A resistive (0.5A inductive) @ 250 VAC, one set at +10° and one set at 85° |
| EFX24-SR Damper Actuator,270 in-lb,Spring Return,24V,Modulating |
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% | 2-10 VDC | 270 in-lbs [30 Nm] minimum | |
| EFX24-SR-S Damper Actuator,270 in-lb,Spring Return,24V,Modulating,SW |
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% | 2-10 VDC | 270 in-lbs [30 Nm] minimum | 2 x SPDT, 3A resistive (0.5A inductive) @ 250 VAC, one set at +10°, one adjustable 10° to 85° |
| EFX24-SR-S N4 Damper Actuator,270 in-lb,Spring Return,24V,Modulating,SW,NEMA 4 |
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% | 2-10 VDC | 270 in-lbs [30 Nm] minimum | 2 x SPDT 3A resistive (0.5A inductive) @ 250 VAC, one set at +10° and one set at 85° |
| EFX24-SR-S N4H Damper Actuator,270 in-lb,Spring Return,24V,Modulating,SW,NEMA 4H |
24 VAC±20%, 50/60Hz, 24 VDC+20%/-10% | 2-10 VDC | 270 in-lbs [30 Nm] minimum | 2 x SPDT 3A resistive (0.5A inductive) @ 250 VAC, one set at +10° and one set at 85° |
