Belimo FSAFB24-SR-S : Fail-Safe Fire & Smoke Actuator, 180 in-lb, 24VAC/DC, Modulating 2-10VDC Control Signal, (2) SPDT 3A @250V Aux Switch, 5-Year Warranty
The Belimo FSAFB24-SR-S is an adaptable HVAC actuator for AC/DC 24 V operation. With a power consumption of 6.5 W during operation and 6 W (9.5 VA) at rest, it offers precise control within a 2-10 V and 4-20 mA range. Providing 180 in-lb [20 Nm] torque @ 250°F [121°C] for 30 minutes, it's reversible and adjustable by cw/ccw mounting, with a 95° angle of rotation. Noise levels are 40 dB(A) in operation and 62 dB(A) in fail-safe mode. It features 2 x SPDT auxiliary switches (3 A resistive @ AC 250 V), 18 GA appliance cables, and holds IP54 and NEMA 2 protection ratings. It's certified with CE, UL 60730-1, CSA C22.2 No. 139, and ISO 9001. Suitable for air plenums, it operates in humidity up to 95% RH and temperatures of -22 to 122°F [-30 to 50°C], with storage capabilities from -40 to 176°F [-40 to 80°C]. Weighing 5.7 lb [2.6 kg], its galvanized steel and plastic housing ensure durability.
Specifications
| Voltage AC/DC | AC/DC 24 V |
| Power Consumption (Running) | 6.5 W |
| Power Consumption (Running) FS | 6 W, 9.5 VA |
| Power Consumption (Holding) FS | 3 W, 5 VA |
| Power Consumption For Wire Sizing | 10 VA |
| Auxiliary Switches | 2x SPDT |
| Torque | 180 in-lb [20 Nm] |
| Control Type | DC 2...10 V |
| Direction Of Motion Motor | selectable by ccw/cw mounting |
| Direction of Rotation (Fail-Safe) | Reversible with cw/ccw mounting |
| Manual Override | 5 mm hex crank (3/16" Allen), supplied |
| Angle of Rotation | 95 |
| Running Time (Motor) | 75 s / 90° |
| Running Time (Fail-safe) | <20 s |
| Protection category | IP54 |
| Degree Of Protection NEMA | NEMA 2 |
| Enclosure Type | UL Enclosure Type 2 |
| Ambient Temperature | -22...122°F [-30...50°C] |
Data Sheets
 | Belimo FSAFB24-SR-S Fire and Smoke Damper Actuator Data Sheet |
| Belimo Fire and Smoke Damper Actuator Brochure |
| Belimo Fire and Smoke Damper Actuator Consultant Specifications |
- Actuator Type:
- Fire & Smoke Actuator
- Voltage:
- 24VAC/DC
- Control Signal:
- 2-10VDC
- Auxillary Switch:
- Yes
