Belimo TR24-SR Actuator

The Belimo TR24-SR is a high-precision, non-spring return actuator designed for the modulating control of dampers in HVAC systems. Operating on a 24VAC/DC power supply, this compact damper actuator utilizes a 2 to 10 VDC or 4 to 20 mA proportional control signal to provide accurate positioning and consistent torque performance. With a rated torque of 18 in-lb (2 Nm), it is an ideal solution for small terminal units, VAV box controllers, and bypass dampers where reliable HVAC automation is required. The unit features a manual override button for simplified commissioning and troubleshooting in the field. Its brushless DC motor technology ensures long-term actuator reliability and precise speed control regardless of load variations. Designed for effortless installation, it mounts directly to damper shafts, reducing labor time for contractors and ensuring a high-performance direct-coupled actuator integration within building management systems.

• Precise Modulating Control: Uses a 2-10 VDC signal for accurate airflow regulation and system efficiency.
• Universal Compatibility: Operates on 24V AC or DC, making it versatile for various 24V control circuits.
• Simple Manual Override: Integrated push-button allows for manual positioning during installation and testing.
• Compact Footprint: Narrow design allows for installation in tight mechanical spaces and VAV boxes.
• Low Power Consumption: Optimized energy draw minimizes the load on the transformer circuit.

Common Questions

Can the Belimo TR24-SR be used for fail-safe applications?
No, this is a non-spring return actuator. It will remain in its last position upon loss of power rather than returning to a default closed or open position.

Does this actuator support 4-20 mA input signals?
Yes, it can be configured for 4-20 mA control using a 500? resistor across the input terminals for seamless integration with industrial controllers.

What is the typical runtime for this actuator?
The Belimo TR24-SR features a constant runtime of approximately 90 seconds for 95 degrees of rotation, ensuring stable system response times.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.