Microprocessor‑Controlled Brushless DC Motor (‑AGx and ‑GGx Types)
Integral Connectors for 3/8 in. (10 mm) Flexible Metal Conduit (FMC)
Locking Manual Override with Auto Release and Crank Storage
Integral Cables with Colored and Numbered Conductors
External Mode Selection Switch (‑AGx and ‑GGx Types)
Double‑Insulated Construction
Electronic Stall Detection
Reversible Mounting
The M9208‑xxx‑x Series Electric Spring‑Return Actuators provide control of dampers in HVAC systems. All actuators in this series provide 70 lb‑in (8 N‑m) rated torque. A mechanical spring‑return system provides rated torque with and without power applied to the actuator.
The series includes the following control options:
On/Off, 24 V, 120 VAC, 230 VAC power
On/Off and Floating Point, 24 V power
Proportional, 24 V power, for 0(2) to 10 VDC or 0(4) to 20 mA Control Signal
These actuators are configured for direct mounting and do not require a damper linkage. Actuators can be mounted directly to a damper shaft from 5/16 to 5/8 in. (8 to 16 mm) diameter with a universal clamp. For shafts up to 3/4 in. (19 mm) diameter, use the accessory Large Shaft Coupler Kit M9208‑600. An accessory crank arm and remote mounting kit are available for applications where the actuator cannot be direct coupled to the damper shaft. Optional line voltage auxiliary switches indicate an end‑stop position or perform switching functions within the selected rotation range