Overview
The Belimo LF24-3 US is a spring-return damper actuator providing floating point or on/off fail-safe control of HVAC air dampers.
Features
- Mechanical spring-return system for positive safety repositioning
- Microprocessor-controlled motor protection against overload
- Simple direct coupling with adjustable shaft clamp
- Graduated mechanical position indicator
Specifications
- Torque: 35 in-lb [4 Nm]
- Nominal Voltage: AC/DC 24 V
- Control Signal: On/Off, Floating Point
- Running Time: 150 seconds (constant)
- Fail-Safe Running Time: <25 seconds
Applications
- Floating point and on/off damper control in ventilation systems
- Commercial HVAC dampers requiring fail-safe shutoff



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