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Welcome to BOSS-MART - Brightech Online Sales & Service | Genuine Quality Products - 12 Months Warranty
Welcome to BOSS-MART - Brightech Online Sales & Service | Genuine Quality Products - 12 Months Warranty
Product Id# FSNF24-S US
The FSNF24-S US is a UL555S-listed, spring-return actuator designed for fire and smoke dampers.
The FSNF24-S US is a UL555S-listed, spring-return actuator designed for fire and smoke dampers. Operating on 24 VAC/DC, it provides reliable fail-safe operation and includes dual auxiliary switches for position feedback. It’s engineered to perform even in high-temperature conditions up to 350°F (177°C) for short durations.
| Attribute | Details |
|---|---|
| Voltage | AC/DC 24 V ±20%, 50/60 Hz |
| Torque | 70 in-lb (8 Nm) |
| Control Type | On/Off |
| Running Time (Motor) | 15 seconds / 90° |
| Running Time (Spring) | 15 seconds |
| Angle of Rotation | 95° |
| Auxiliary Switches | 2 × SPDT (one at 10°, one at 85°) |
| Cable Connection | 32" (0.9 m), 6×18 AWG with ½" NPT connector |
| Power Consumption | 27 VA (running), 3 W (holding), 6.5 VA rest |
| Transformer Sizing | 40 VA (Class 2 power source) |
| Protection Rating | NEMA 1 / IP40 |
| Ambient Temp Range | 32°F to 122°F (0°C to 50°C) |
| Fire Rating | Operates at 350°F (177°C) for 15 seconds |
| Noise Level | 45 dB(A) motor / 62 dB(A) spring |
| Weight | 6.3 lbs (2.9 kg) |
| Certifications | UL873, UL555, UL555S, UL2043, CSA C22.2 No.24 |
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