Belimo AFX24-SR Damper Actuator 180 In-lb Spring Return 24V

Product Description

The BELIMO AFX24-SR is a spring-return damper actuator rated at 180 in-lb of torque, designed for modulating control of HVAC dampers in commercial and industrial air-handling applications. It operates on a 24 VAC or 24 VDC power supply, drawing 8.5 VA, and accepts an analog control signal for precise positioning across the full damper stroke. The housing combines zinc-coated metal and plastic casing for durability in mechanical room and air-handling unit environments. Licensed HVAC technicians and sheet-metal contractors are the primary installers of this actuator class.

The AFX24-SR is suited for damper control in variable air volume systems, mixed-air assemblies, exhaust dampers, and supply-air isolation applications in commercial HVAC systems. The spring-return function drives the damper to its fail-safe position on loss of power, making it appropriate for installations where default open or default closed damper positioning is required by design or code. It is typically mounted directly to damper shafts in air-handling units, rooftop units, and built-up systems.

Key Features

• 180 in-lb torque output handles medium to large commercial damper assemblies
• Spring-return mechanism provides fail-safe damper positioning on power loss
• Accepts 24 VAC or 24 VDC power supply for flexible integration
• Analog control signal input enables modulating positioning
• Zinc-coated metal and plastic housing resists corrosion in mechanical environments
• 8.5 VA power draw supports low-capacity 24V transformer circuits

Compatibility

Designed as an OEM-style replacement or new-installation actuator for commercial HVAC damper systems requiring spring-return, modulating control at 24 volts.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified mechanical contractor. De-energize the 24V control circuit and disconnect power to the air-handling system before mounting or wiring the actuator. Verify that the damper shaft size and torque requirements of the damper assembly are within the actuator rating before mounting. Control wiring should be run in accordance with applicable NEC low-voltage wiring guidelines and the equipment manufacturer's wiring diagram.

Technical Specifications

• Torque: 180 in-lb
• Power Supply: 24 VAC, 24 VDC
• Supply Voltage (Nominal): 24 VAC
• Power Consumption: 8.5 VA
• Control Signal: Analog (Modulating)
• Return Type: Spring Return
• Housing Material: Zinc Coated Metal and Plastic Casing

Standard Information

• Brand: BELIMO
• Manufacturer Part Number: AFX24-SR