Overview
The Belimo EFB24 is a 24V high-torque spring return damper actuator designed for fail-safe on/off control of large air dampers in commercial HVAC systems.
Features
- Delivers 270 in-lb of torque for robust actuation of heavy or large dampers
- Spring return fail-safe mechanism returns damper to safety position on power loss
- Simple 24V AC/DC two-wire on/off control interface
- Reversible direction of rotation for flexible mounting options
Specifications
- Torque: 270 in-lb [30 Nm]
- Nominal Voltage: AC/DC 24 V
- Control Type: On/Off
- Actuator Type: Spring Return
- Power Consumption: 8 W running, 3 W holding
Applications
- Main supply and exhaust damper control in commercial air handling systems
- Emergency fail-safe airflow isolation and ventilation control



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