Belimo LF24-S Spring Return Damper Actuator in-lb On/Off - 24V 35

The Belimo LF24-S is a spring return damper actuator designed for on/off control of HVAC dampers in commercial and industrial applications. This compact actuator operates on 24V AC/DC power and delivers 35 in-lb (4 Nm) of torque, making it suitable for dampers up to approximately 8 square feet.

Key Features:

• Spring return operation for fail-safe positioning—automatically returns damper to normal position upon power loss
• 35 in-lb (4 Nm) torque output for reliable damper control
• 24V AC/DC universal voltage for flexible installation
• On/off control with 2-position operation (0° and 95° rotation)
• One auxiliary switch for end position feedback or interlock circuits
• Direct mounting to damper shaft with included universal mounting bracket
• Manual override for emergency operation and commissioning
• Compact, durable housing suitable for commercial HVAC environments

The LF24-S actuator features a 95-second nominal running time and includes integrated cable protection. The auxiliary switch provides SPDT dry contacts for monitoring damper position or controlling auxiliary equipment. Suitable for use in building automation systems, air handling units, and ventilation control applications.