Belimo AFB24-S Actuator, Spring Return, 180 in-lb, 2-10Vdc, 24Vac, 24Vdc Product Type: Damper Actuator Fail-Safe: Spring Return Torque: 180 in-lbs [20 Nm] minimum Control Input: 2-10 VDC Input Impedance: 100 k Ω for 2 to 10 VDC (0.1 mA), 500 Ω for 4 to 20 mA Position Feedback: 2 to 10 VDC, 0.5 mA max Running Time (Motor): 95 sec Running Time (Fail-Safe): <20 sec @ -4 Degrees F to 122 Degrees F [-20 Degrees C to 50 Degrees C], < 60 sec @ -22 Degrees F [-30 Degrees C] Auxiliary Switch: — Power Supply: 24 VAC+/- 20%, 50/60Hz, 24 VDC+20%/-10% Power Consumption (Holding): 3 W Power Consumption (Running): 5.5 W Transformer Sizing: 8.5 VA (class 2 power source) Electrical Connection: 3 ft [1 m], 18 GA appliance cable with 1/2″ conduit connector Overload Protection: electronic throughout 0 Degrees to 95 Degrees rotation Shaft Diameter: 1/2″ to 1.05″ round, centers on 1/2″ and 3/4″ with insert, 1.05″ without insert Angle of Rotation: 95 Degrees (adjustable with mechanical end stop, 35 Degrees to 95 Degrees ) Direction of Rotation (Motor): reversible with built-in switch Direction of Rotation (Fail-Safe): reversible with CW/CCW mounting Position Indication: visual indicator, 0 Degrees to 95 Degrees (0 Degrees is full spring return position) Manual Override: 5 mm hex crank (3/16″ Allen), supplied Humidity: max. 95% RH non-condensing Ambient Temperature: -22 Degrees F to +122 Degrees F [-30 Degrees C to +50 Degrees C] Ambient Temperature (Safety): — Storage Temperature: -40 Degrees F to +176 Degrees F [-40 Degrees C to +80 Degrees C] Noise Level (Motor): ≤40 dB (A) Noise Level (Fail-Safe): <62 dB (A) Housing Material: zinc coated metal and plastic casing Housing: NEMA 2, IP54, UL enclosure type 2 Agency Listings: cULus acc. to UL60730-1A/-2-14, CAN/CSA E60730-1:02, CE acc. to 2004/108/EC Quality Standards: ISO 9001