Description
The Johnson Controls M9208-GGA-3 is a proportional, spring return direct coupled actuator engineered for precise damper and valve control in commercial HVAC and building automation applications. Delivering 70 lb-in of torque with a reliable spring return fail-safe mechanism, this actuator ensures controlled positioning even during power loss events.
Key Features
- Proportional control with multiple input signal options: 0–10Vdc, 2–10Vdc, and (0)4–20mA (with 500 Ohm resistor)
- Dual voltage compatibility: 24Vac and 24Vdc power supply
- 70 lb-in (7.9 N·m) output torque for dependable damper and valve actuation
- Spring return design provides fail-safe positioning on power loss
- 150-second power-on run time for smooth, controlled actuation
- 48″ appliance cable with integral 3/8″ FMC (Flexible Metal Conduit) connector for easy, code-compliant field wiring
- Direct coupled mounting — no crank arm or linkage required
Control Signal Compatibility
- 0–10Vdc proportional input
- 2–10Vdc proportional input
- (0)4–20mA with 500 Ohm resistor
Electrical Specifications
- Supply voltage: 24Vac / 24Vdc
- Torque output: 70 lb-in
- Power-on run time: 150 seconds
Mechanical & Wiring Details
- Spring return fail-safe operation
- Direct coupled actuator — mounts directly to damper shaft
- 48″ appliance cable for flexible installation reach
- Integral 3/8″ FMC connector for conduit termination
Ideal Applications
- VAV and constant volume air handling units
- Commercial damper control in BAS/BMS systems
- Proportional valve and damper positioning
- Building automation and energy management systems
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