Overview
The Belimo EFB24 N4 is a 24V spring return damper actuator built with a NEMA 4 weatherproof enclosure for reliable high-torque fail-safe operation in exposed or wet outdoor environments.
Features
- Weatherproof NEMA 4 / IP66 enclosure prevents ingress of rain, dust, and dirt
- Robust 270 in-lb torque suitable for demanding damper control requirements
- Fail-safe spring return operation ensures emergency positioning during power failures
- Easy direct coupling with universal shaft clamp
Specifications
- Torque: 270 in-lb [30 Nm]
- Nominal Voltage: AC/DC 24 V
- Control Type: On/Off
- Actuator Type: Spring Return
- Enclosure Rating: NEMA 4 / IP66
Applications
- Outdoor air dampers on rooftop units and cooling tower louvers
- Washdown environments and exposed industrial HVAC installations



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