The M9208-xxx-x Series Electric Spring Return
Actuators provide control of dampers in Heating,
Ventilating, and Air Conditioning (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.
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 crankarm 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.