Description
Belimo ARB24-SR-T Non-Spring Return Damper Actuator
The Belimo ARB24-SR-T is a high-performance, non-spring return rotary actuator engineered for demanding HVAC damper control applications. Delivering a robust 180 in-lb of torque, this actuator is well-suited for driving large commercial dampers in air handling units, VAV systems, and building automation applications where precise, proportional positioning is required.
Proportional Control for Precise Positioning
Equipped with a 2–10 Vdc proportional control input, the ARB24-SR-T allows for accurate, stepless positioning of damper blades across the full range of travel. This makes it ideal for economizer, outside air, and mixed-air control strategies where modulating control is essential to system efficiency and occupant comfort.
Key Features & Specifications
- SKU: ARB24-SR-T
- Brand: Belimo
- Actuator Type: Non-Spring Return (NSR)
- Torque Output: 180 in-lb
- Control Signal: 2–10 Vdc proportional
- Power Supply: 24 Vac / 24 Vdc
- Rotary actuator design for damper shaft mounting
- Suitable for commercial and industrial HVAC systems
Non-Spring Return Design
Unlike spring-return actuators, the ARB24-SR-T holds its last commanded position upon loss of power, making it the right choice for applications where damper position retention is preferred over fail-safe open or closed operation. This design also supports bidirectional rotation for flexible installation.
Built for Commercial HVAC
Belimo is a globally recognized leader in actuator technology, and the ARB24-SR-T reflects their commitment to reliability, longevity, and ease of installation. The actuator’s rugged construction and industry-standard 24V power input make it compatible with a wide range of building automation and HVAC control systems.
Typical Applications
- Air handling unit (AHU) damper control
- Variable air volume (VAV) systems
- Economizer and outside air dampers
- Mixed-air and return-air damper control
- Building automation system (BAS) integration
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