Description
The Belimo LF24-S is a direct-coupled, spring return damper actuator engineered for reliable On/Off control in commercial and residential HVAC applications. Designed for use with Belimo’s LF-series damper shafts, this actuator provides dependable fail-safe operation, automatically returning to its spring-loaded position upon loss of power to ensure safe system shutoff or opening as required.
Key Features
- 35 in-lb (4 Nm) torque output for positive damper control
- Spring return fail-safe operation for reliable, power-loss protection
- On/Off control signal for straightforward integration
- Dual voltage compatibility: 24Vac and 24Vdc power supply
- Integrated auxiliary switch for end-position feedback and interlocking
- Direct-coupled design — no crank arm or linkage required
- Compact, lightweight housing for easy installation in tight spaces
- Meets UL and cUL standards for North American installations
Technical Specifications
- Model: LF24-S
- Torque: 35 in-lb (4 Nm)
- Control Type: On/Off
- Power Supply: 24Vac / 24Vdc
- Fail-Safe Action: Spring Return
- Auxiliary Switch: Included
- Mounting: Direct-coupled to damper shaft
Applications
- HVAC damper control in air handling units (AHUs)
- Zone dampers in VAV and CAV systems
- Outdoor air, exhaust, and relief dampers
- Fire and smoke control systems requiring fail-safe positioning
- Building automation and energy management systems
The Belimo LF24-S is backed by Belimo’s industry-leading quality and is a trusted choice for HVAC contractors and building automation professionals seeking a dependable, easy-to-install actuator solution.
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