Bosch FAS-420-TT2 - Page 28

28 en | Technical data Aspiration smoke detectors LSN improved
2020.04 | 5 | F.01U.029.274 Quick installation guide Bosch Sicherheitssysteme GmbH
– Aspiration pipe 1 pipe/2 pipes
– Air-return Pipe 1 pipe
Cable Bushings 5 x M 20 and 2 x M 25
Dimensions (W x H x D) 292 x 200 x 113mm
Weight Approx. 1.5kg
Housing material Plastic (ABS)
Housing color Papyrus white (RAL 9018)
Environmental Conditions
Protection category according to EN 60529 IP 20
Permissible temperature
– Aspiration smoke detector -20°C to +60°C
– PVC pipe system 0°C to +60°C
– ABS pipe system -40°C to +80°C
Permissible relative humidity (non-condensing) 10 to 95%
Special features
sound power level
FAS‑420‑TP1/‑TP2/‑TT1/‑TT2 ‑SL variants From 31dB(A)
Max. response sensitivity (max. light obscuration)
– DM‑TT‑50(80) Detector Module 0.5%/m (0.8%/m) *
– DM‑TT‑10(25) Detector Module 0.1%/m (0.25%/m) *
– DM‑TT‑01(05) Detector Module 0.015%/m (0.05%/m) *
Life cycle of the fan (12V) 43,000 hrs at 24°C
* The sensitivity value is based on measurements with standard test fires (old value in
brackets).