Bosch · Detectors
Bosch FAS-420-TT2 Two-Pipe Addressable Aspirating Smoke Detector
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Product description
FAS-420-TT2 is an analogue addressable aspirating smoke detector that detects smoke via a two-pipe air sampling system. It monitors airflow and features alarm and smoke density indicators; it helps detect blockages and breaks in the pipe. It can be used to monitor large or hard-to-access areas in fire detection systems.
Key features
- Connection to a two-pipe system
- Alarm and smoke density indicators
- High immunity to false alarms through intelligent signal processing
- Airflow monitoring detects blockages and breaks
- Easy initial setup with automatic start-up
- Two integrated isolators maintain LSN loop functionality
Technical specifications
| Operating voltage | 15–33 VDC |
|---|---|
| Operating temperature | -20–60 °C |
| Dimensions (H × W × D) | 292 × 200 × 113 mm |
| Weight | 1500 g |
| Input current | 400 mA |
| Auxiliary current | 330–360 mA |
| LSN current consumption | 6,25 mA |
| Operating relative humidity (non-condensing) | %10–95 |
| LED colours | Red, yellow, green |
| Material | Plastic |
Information has been compiled from manufacturer/distributor sources. Please consult the documentation for current technical specifications.
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