FSTF24 US
Details
Details
FSTF24 US 18 lb-in Fire/Smoke Actuator, 250 deg F, 24 VAC/DC
Spring return actuator for smoke and combination fire/smoke dampers. Must be UL555S listed with the damper manufacturer, and the damper and actuator are tested after installation.
Key Features
- Fire rating: full torque for 30 minutes at rated temperature
- Spring return: under 25 s @ 32 to 122 deg F (0 to 50 deg C)
- Fail direction: set by mounting
- Wiring: 3 ft. (1 m), 18 AWG 2-wire appliance cable with 1/2" NPT conduit connector
Product Specifications
| Manufacturer | Belimo |
|---|---|
| Model | FSTF24US (FSTF24 US) |
| Nominal voltage | AC/DC 24 V |
| Nominal voltage frequency | 50/60 Hz |
| Nominal voltage range | AC 19.2 to 28.8 V / DC 21.6 to 28.8 V |
| Power consumption in operation | 2 W2 W, 3 VA |
| Power consumption in rest position | 1.5 W, 2 VA |
| Transformer sizing | 5 VA |
| Inrush current | 2.7 A |
| Electrical connection | 3 ft. (1 m), 18 AWG 2-wire appliance cable with 1/2" NPT conduit connector |
| Overload Protection | electronic throughout 0 to 95 deg rotation |
| Electrical Protection | actuators are double insulated |
| Torque | 18 lb-in (2 Nm) @ 250 deg F (121 deg C) for 30 min |
| Direction of motion motor | selectable by ccw/cw mounting |
| Direction of motion fail-safe | reversible with cw/ccw mounting |
| Angle of rotation | 95 deg |
| Running time (motor) | 75 s / 90 deg |
| Running time motor note | @ 250 deg F (121 deg C) |
| Running time fail-safe | <25 s @ 32 to 122 deg F (0 to 50 deg C) |
| Sound power level motor | 45 dB(A) |
| Sound power level, fail-safe | 62 dB(A) |
| Position indication | Mechanical |
| Power source UL | Class 2 Supply |
| Degree of protection NEMA/UL | NEMA 2 |
| Housing | UL Enclosure Type 2 |
| Agency Listing | cULus acc. to UL60730-1A/-2-14, CAN/CSA E60730-1:02 |
| Quality Standard | ISO 9001 |
| UL 2043 Compliant | Suitable for use in air plenums per Section 300.22(C) of the NEC and Section 602 of the IMC |
| Ambient humidity | Max. 95% RH, non-condensing |
| Ambient temperature | 32 to 122 deg F (0 to 50 deg C ) |
| Storage temperature | -40 to 176 deg F (-40 to 80 deg C) |
| Servicing | maintenance-free |
| Weight | 1.6 lb (0.72 kg) |
| Housing material | UL94-5VA |
| Footnotes | Part no. Clamp side spring-return FSTF120 US CW FSTF120.1 US CW (bulk pack) FSTF120.1 CCW CCW (bulk pack) FSTF120-S US CW CW FSTF120-S.1 US CW (bulk pack) FSTF120-S.1 CCW CCW (bulk pack) FSTF24-S.1 US CW (bulk pack) † UL File XAPX.E108966 |