Description
Belimo SY4-24 Heavy-Duty Non-Spring Return Actuator
The Belimo SY4-24 is a robust, heavy-duty non-spring return damper actuator engineered for demanding commercial and industrial HVAC applications. Delivering an impressive 3,560 in-lb of torque, this actuator is well-suited for driving large dampers and valve assemblies where reliable, precise positioning is critical. With its On/Off control mode and dual-voltage compatibility, the SY4-24 offers flexible installation across a wide range of building automation and control systems.
Key Features
- Non-spring return design for reliable, bidirectional damper control
- High torque output of 3,560 in-lb — ideal for large commercial damper applications
- On/Off control mode for straightforward open/close operation
- Dual voltage compatibility: 24Vac and 24Vdc power input
- NEMA 4X enclosure rating — provides protection against dust, splashing water, and corrosion
- Suitable for indoor and outdoor installations in harsh environments
- Belimo quality construction for long service life and minimal maintenance
Technical Specifications
- Brand: Belimo
- Model / SKU: SY4-24
- Actuator Type: Non-Spring Return
- Torque: 3,560 in-lb
- Control Type: On/Off
- Supply Voltage: 24Vac / 24Vdc
- Enclosure Rating: NEMA 4X
Applications
- Large commercial and industrial HVAC damper control
- Air handling units (AHUs) requiring high-torque actuation
- Building automation systems (BAS)
- Outdoor or wet-location installations requiring NEMA 4X protection
- On/Off zone control in commercial ventilation systems
Why Choose Belimo?
Belimo is a globally recognized leader in actuator and valve technology for HVAC systems. The SY4-24 reflects Belimo’s commitment to precision engineering, energy efficiency, and long-term reliability — making it a trusted choice for mechanical contractors, building engineers, and HVAC professionals worldwide.
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