Johnson Controls M9208-GGA-3 Actuator

The Johnson Controls M9208-GGA-3 is a high-performance spring return damper actuator engineered for precise modulation in commercial HVAC systems. This proportional electric actuator delivers 70 lb-in of torque, utilizing a microprocessor-controlled brushless DC motor to maintain constant speed regardless of load variations. It supports a variety of control signals, including 0-10 VDC, 2-10 VDC, and 0(4)-20 mA (with the included 500 Ohm resistor), making it a versatile choice for direct-coupled applications. Designed for reliability, it features electronic stall detection, eliminating the need for mechanical end switches while protecting the gear train. The unit comes equipped with a 48-inch appliance cable and an integral 3/8" FMC connector for streamlined field wiring. With a 150-second power-on run time and a mechanical spring return for fail-safe positioning during power loss, this 24V damper motor ensures consistent climate control and system safety in demanding environments.

• Universal Control Compatibility: Seamlessly integrates with building automation systems using 0-10V or 4-20mA proportional signals.
• Fail-Safe Reliability: The mechanical spring return ensures dampers return to a known safe position upon loss of 24VAC/VDC power.
• Maintenance-Free Operation: The brushless DC motor and stall detection technology extend the service life by preventing internal damage during blockage.
• Simplified Installation: Direct-coupled design and a self-centering shaft clamp accommodate round or square damper shafts without complex linkages.
• Quiet Performance: Operates at less than 52 dBA, making it ideal for noise-sensitive indoor air handling environments.

What is the difference between the GGA and GGC models?
The M9208-GGA-3 is a base proportional model with a 48-inch cable, while the GGC version typically includes integrated auxiliary switches for end-stop signaling. This GGA-3 unit is prioritized for standard proportional control applications.

Can I mount this actuator in any orientation?
Yes, the direct-mount actuator is designed for multi-positional mounting. It includes an anti-rotation bracket to secure the unit against the ductwork or damper frame in various orientations.

Does this unit require a specific shaft size?
This model fits standard round shafts from 5/16" to 5/8" and square shafts from 1/4" to 1/2". For larger shafts up to 3/4", an optional M9208-600 coupler kit is required.

This item is not eligible for free shipping.

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.