Johnson Controls M9208-AGA-3 Actuator

The Johnson Controls M9208-AGA-3 is a Spring Return Direct Coupled Actuator designed for high-performance control of HVAC dampers and valves. Engineered for 70 lb-in torque (8 Nm), this unit operates on 24Vac or 24Vdc power and supports both floating control and two-position (On/Off) configurations. The M9208 series actuator features a 150-second power-on run time, ensuring gradual and precise air volume control while providing a reliable spring return to the home position upon loss of power. For streamlined installation, this model includes a 48" appliance cable with an integral 3/8" FMC connector, simplifying field wiring in tight plenum spaces. Its reversible mounting capability allows for flexible clockwise or counterclockwise setup, ensuring compatibility with standard square or round shafts. Built for professional-grade reliability, this Johnson Controls actuator is the industry standard for maintaining consistent damper actuator performance in light to medium commercial applications.

Key Technical Benefits

• Constant Torque Output: Delivers 70 lb-in (8 Nm) of torque for consistent air volume control.
• Universal Power Compatibility: Functions on 24 VAC or 24 VDC, providing flexibility for diverse control circuits.
• Integrated Conduit Connector: Prefitted with a 3/8 inch FMC connector to reduce installation time and labor.
• Fail-Safe Logic: Mechanical spring return ensures the unit reaches its safety position during power interruptions.
• Direct Coupling: No linkages required for standard shafts, minimizing points of mechanical failure.

Common Questions

Can this actuator handle both floating and on/off signals?
Yes, the M9208-AGA-3 is designed for versatile signal processing, allowing contractors to use it for floating control or basic two-position applications depending on the field wiring setup.

What is the maximum shaft size for this direct-coupled unit?
This actuator mounts directly to shafts ranging from 5/16 inch to 5/8 inch (8 to 16 mm) round or 1/4 inch to 1/2 inch (6 to 12 mm) square.

Does this model include internal auxiliary switches?
The AGA-3 model does not include built-in auxiliary switches; if end-stop feedback is required, an AGC series model or an external switch kit should be utilized.

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.