Johnson Controls M9124-GGC-2 Actuator

The Johnson Controls M9124-GGC-2 Actuator is a heavy-duty, non-spring return direct coupled actuator engineered for precise control of large HVAC dampers and valves. Delivering a robust 210 lb-in torque, this unit is designed for proportional control, supporting 0-10Vdc, 2-10Vdc, and 4-20mA signals (with the included 500-ohm resistor). Its universal power compatibility allows for 24Vac or 24Vdc operation, making it a versatile choice for a variety of building automation systems. With a travel time ranging from 115 to 175 seconds, it ensures steady, reliable modulation without the risk of water hammer in valve applications or sudden pressure spikes in ductwork. The inclusion of two SPDT auxiliary switches provides critical end-stop signaling and interlocking capabilities for peripheral equipment. Built for long-term field performance, this Johnson Controls M9124 series model features a manual gear release for easy commissioning and electronic stall detection to protect the motor across its entire stroke.

• Broad Compatibility: Supports 0-10Vdc, 2-10Vdc, and 4-20mA proportional inputs for seamless integration with most HVAC controllers.
• High Torque Capacity: Generates 210 lb-in (24 N·m) of torque, sufficient for driving larger dampers without the need for complex linkages.
• Dual Auxiliary Switches: Features two integrated SPDT switches to provide electrical feedback or state-change signals at specific rotation angles.
• Simplified Installation: The direct coupled design attaches easily to round or square shafts, reducing the time required for mechanical setup.
• Reliable Protection: Equipped with electronic stall detection, which prevents motor burnout by cutting power if a blockage is encountered.

Can this actuator be used in tandem for higher torque applications?
Yes, two M9124-GGC-2 units can be mounted in tandem to provide up to 420 lb-in of torque, provided they are configured correctly to sync their travel.

Is a special tool required for manual positioning?
No, the unit features a spring-loaded manual gear release button on the cover that allows you to reposition the damper or valve manually during commissioning.

Does this model return to a "fail-safe" position upon power loss?
No, this is a non-spring return actuator. It will maintain its last position unless moved manually or driven by power.

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.