The Belimo AF120-S US spring return fail safe on-off 120VAC control is used for control of dampers in HVAC systems. Please use damper manufacturer’s specifications for actuator sizing. Control is on-off from an auxiliary contact, or a manual switch. The actuator is mounted directly to a damper shaft up to 1.05” in diameter by means of its universal clamp. A crankarm and several mounting brackets are available for additional applications.
Product Specifications
| Power supply |
120 VAC ±10% 50/60 Hz |
| Power consumption |
running: 6 W, holding: 2.3 W |
| Transformer sizing |
10 VA |
| Electrical connection |
3 ft, 18 GA appliance cable, 1/2”
conduit connector |
| Electrical protection |
actuators are double insulated |
| Overload protection |
electronic throughout 0° to 95° rotation |
| Angle of rotation |
95°, adjustable 35 to 95° w/ ZDB-AF2 |
| Torque |
133 in-lb [15 Nm] constant |
| Direction of rotation |
reversible with CW/CCW mounting |
| Position indication |
visual indicator, 0° to 95° (0° is spring return position) |
| Manual override |
3mm hex crank (shipped w/actuator) |
| Auxiliary switches |
2 x SPDT 7A (2.5A) @ 250 VAC, UL listed
(AF120/230-S) one set at +5°, one adjustable 25° to 85° |
| Running time |
150 sec. constant, independent of load, spring return < 20 sec |
| Humidity |
5 to 95% RH non-condensing |
| Ambient temperature |
-22°F to +122°F [-30°C to +50°C] |
| Storage temperature |
-40°F to +176°F [-40°C to +80°C] |
| Housing |
NEMA type 2 / IP54 |
| Housing material |
zinc coated steel |
| Agency listings |
UL 873 listed, CSA C22.2 No. 24 certified |
| Noise level |
max. 45 dB (A) |
| Servicing |
maintenance free |
| Quality standard |
ISO 9001 |
| Weight |
6.9 lbs (3.1 kg.) |
