M9108 24 VAC Electric Non-Spring Return Actuator for On/Off or Floating Control (70 lb-in)

The M9108-AGx-2 Series direct-mount electric actuators operate on 24 VAC or VDC power, and are available for use with on/off and floating controllers. These bidirectional actuators do not require a damper linkage, and are easily installed on a damper with a round shaft up to 3/4 inches in diameter or a square shaft up to 5/8 inches. Actuators may be direct- or remote-mounted to a damper.

A single M9108-AGx-2 model delivers up to 70 lb-in of torque. The angle of rotation is mechanically adjustable from 0 to 90-degree in 5-degree increments. Integral auxiliary switches are available to indicate end-stop position or to perform switching functions at any angle within the selected rotation range. Position feedback is available through either a 135 or 1,000 ohm potentiometer.

Product Features:

• Two control inputs which meet the needs of most applications
• Output position feedback provides simple, closed-loop control with accurate position sensing
• Electronic stall detection to ensure higher reliability by deactivating the actuator motor if a stall condition is detected
• Removable coupler allows adjustment of the rotation range from 0 to 90 degrees
• Steel U-bolt clamps for four-point damper shaft gripping
• Coupled to a ball-style valve with linkage to regulate the flow of hot or chilled water, 50% glycol solution, and low pressure steam
• Manual gear release to simplify installation, setup, and field adjustments
• NPT threaded housing provides an easy connection for electrical fittings