Technical data

Automatic Fire Detectors LSN improved
version
Technical Data | en 37
Bosch Sicherheitssysteme GmbH Product Information F.01U.003.449 | 7.2 | 2010.05
Smoke and heat detectors
Detector type FAP-O 420 / FAP-O 420 KKW FAH-T 420 / FAH-T 420 KKW
Detection principle Scattered-light measurement Measurement of absolute
temperature and temperature
increase
Special features – Contamination detection
– Drift compensation in the
optical sensor
– FAP-O 420 KKW:
For use in areas with
elevated radioactivity
– FAH-T 420 KKW:
For use in areas with
elevated radioactivity
Operating voltage 15 V DC to 33 V DC
Current consumption < 0.55 mA
Individual display Two-color LED (red/green)
alarm output Per data word by two-wire signal line
Indicator output Open collector connects 0 V over 1.5 kilohm, max. 15 mA
Response sensitivity (basic
data)
< 0.15 dB/m (EN 54-7) – Thermal differential unit:
EN 54-5
– Thermal maximum unit:
> 54 °C/> 69 °C
Max. monitoring area
120 m
2
(observe VdS
guidelines)
40 m
2
(observe VdS
guidelines)
Max. installation height 16 m (observe VdS
guidelines)
7.5 m (observe VdS
guidelines)
Permitted air speed 20 m/s
Permissible operating
temperature
-20 °C. . . +65 °C -20 °C. . . +50 °C
Permitted relative humidity < 95% (non-condensing)
Protection category
according to EN 60529
IP 40
IP 43 with detector base with damp room seal
Color code - red ring
Dimensions without base
Dimensions with base
∅ 99.5 x 52 mm
∅ 120 x 63.5 mm
Housing material/color ABS/white, similar to RAL 9010, matte surface
Weight without packaging
Weight with packaging
Approx. 75 g
Approx. 115 g
Product ID F.01U.508.813 /
F.01U.508.687
F.01U.508.915 /
F.01U.508.686