AFB24-SR - 24V Spring Return, 180 in-lb, Modulating Motor Actuator

For fail-safe, modulating control of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturer's specifications. The actuator is mounted directly to a damper shaft up to 1.05" in diameter by means of its universal clamp. A crank arm and several mounting brackets are available for applications where the actuator cannot be direct coupled to the damper shaft. The actuator operates in response to a DC 2...10 V or, with the addition of a 500 ohm resistor, a 4...20 mA control input from an electronic controller or positioner. A DC 2...10 V feedback signal is provided for position indication.

Details:

• Spring return damper actuator
• Single auxiliary switch
• Nominal voltage: 24V AC/VDC
• Power Consumption (Holding): 3 W
• Power Consumption (Running): 5.5 W
• Nominal frequency: 50/60 Hz
• Torque: 180 in-lb (20 Nm)
• Angle of rotation: 35° to 95° adjustable with mechanical end stop
• Running time: 95 seconds
• Shaft diameter: 1/2" to 1.05" round, centers on 1/2" and 3/4" with insert, 1.05" without insert
• NEMA 2 enclosure
• Ambient temperature range: -22° to 122° F (-30° to 50° C)