Overview
The Belimo LHB24-SR-100 is a non-fail-safe linear damper actuator designed for proportional modulation of air dampers in HVAC systems. Delivering 35 lbf of actuating force over a 4-inch linear stroke, it operates on a standard 2-10 VDC control signal.
Features
- ASIC-controlled brushless DC motor provides precise linear movement
- Digital Rotation Sensing (DRS) protects against actuator overload
- Mechanical end stops allow stroke adjustment in 0.8-inch increments
- Manual gear disengagement button for manual position setting
- Automatic shut-off upon reaching end position reduces power consumption
Specifications
- Actuating Force: 35 lbf [150 N]
- Linear Stroke: 4 inches [100 mm]
- Supply Voltage: AC/DC 24 V
- Control Signal: 2-10 VDC proportional (or 4-20 mA with 500 ohm resistor)
- Position Feedback: 2-10 VDC
Applications
- Proportional modulating damper control in commercial HVAC ductwork
- Airflow regulation and climate control in ventilation systems





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