Overview
The Belimo EFB120-S N4 is a line voltage spring return damper actuator enclosed in a NEMA 4 weatherproof housing, offering high torque and built-in auxiliary switching for severe outdoor conditions.
Features
- NEMA 4 / IP66 outdoor-rated enclosure protects against water, ice, and dust
- Line voltage operation (100 to 240 VAC) for direct main power supply
- Powerful 270 in-lb torque output for large damper blades
- Auxiliary switches provided for status monitoring and control interlocks
Specifications
- Torque: 270 in-lb [30 Nm]
- Nominal Voltage: AC 100 to 240 V
- Control Type: On/Off
- Actuator Type: Spring Return with Auxiliary Switch
- Enclosure Rating: NEMA 4 / IP66
Applications
- Outdoor damper control on rooftop units and exterior ventilation louvers
- Fail-safe damper actuation in harsh industrial environments



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