Belimo FSTF24 US : Fail-Safe Fire & Smoke Actuator, 18 in-lb, 24VAC/DC, On/Off Control Signal, 5-Year Warranty
The Belimo FSTF24 US actuator is optimized for AC/DC 24V voltage, operating at 50/60 Hz frequency within a range of AC 19.2 to 28.8V / DC 21.6 to 28.8V. Consuming 2 W during operation and 1.5 W at rest, it offers reliable electronic design and a 0 to 95° rotation. Its 18 in-lb [2 Nm] torque at 250°F [121°C] for 30 minutes is reversible, allowing both clockwise and counterclockwise mounting. The actuator's noise levels are 45 dB(A) during operation and 62 dB(A) in fail-safe mode. It holds IP42 and NEMA 2 standards, cULus listing to UL60730-1A/-2-14, and California State Fire Marshal Listing 3210-1593:104. Complying with UL 2043 standards and suitable for NEC and IMC air plenums, it operates between 32°F to 122°F [0°C to 50°C], with storage tolerance of -40°F to 176°F [-40°C to 80°C]. This 1.6 lb [0.60 kg] maintenance-free actuator is constructed using UL94-5VA materials for enhanced safety.
Specifications
| Voltage AC/DC | AC/DC 24 V |
| Power Consumption (Running) | 2 W |
| Power Consumption (Running) FS | 2 W, 3 VA |
| Power Consumption (Holding) | 1.5 W, 2 VA |
| Power Consumption (Holding) FS | 5 VA |
| Torque | 18 in-lb [2 Nm] |
| Control Type | On/Off |
| Direction Of Motion Motor | selectable by ccw/cw mounting |
| Direction of Rotation (Fail-Safe) | Reversible with cw/ccw mounting |
| Angle of Rotation | 95 |
| Running Time (Motor) | 75 s / 90° |
| Running Time (Fail-safe) | <25 s |
| Protection category | IP42 |
| Degree Of Protection NEMA | NEMA 2 |
| Enclosure Type | UL Enclosure Type 2 |
| Ambient Temperature | 32...122°F [0...50°C ] |
Data Sheets
 | Belimo FSTF24 US 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:
- On/Off
- Auxillary Switch:
- None
