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Conventional Automatic Fire Detectors



  • High reliability of detection thanks to evaluation electronics
  • Active adjustment of the threshold (drift compensation) if the optical sensor becomes dirty
  • Activation of a remote external detector alarm display possible
  • Mechanical removal lock(can be activated/deactivated)
  • Dust-repellent labyrinth and cap construction



Operating voltage 8.5 V DC to 30 V DC
Current consumption < 0.12 mA
Alarm output Increase in current (alarm resistance 820 Ω or 470 Ω)
Indicator output Open collector connects 0 V in the event of an alarm over 3.92 kΩ
Individual display LED red
Without base Ø 99.5 x 52 mm
With base Ø 120 x 63.5 mm
Housing material Plastic, ABS
Housing color White, similar to RAL 9010, matt finish
Weight without/with packaging Approx. 80 g / approx. 120 g
FCP-OC320 / FCP-OC320-R470 Approx. 85 g / approx 130 g
Protection class as per EN 60529 IP 41, IP 43 with FAA-420-SEAL or MSC  420
Permissible relative humidity 95% (non-condensing)
Permissible air speed 20 m/s
Permissible operating temperature -20 °C to +50 °C
FCP-O320 / FCP-O320-R470 -20 °C to +65 °C
FCP-OC320 / FCP-OC320-R470 -10 °C to +50 °C
Monitoring area Max. 120 m2 (Heed local guidelines!)
FCH-T320 / -R470 / -FSA Max. 40 m2 (Heed local guidelines!)
Maximum installation height 16 m (Heed local guidelines!)
FCH-T320 / -R470 / -FSA 6 m (Heed local guidelines!)
Response sensitivity
Optical part (in line with EN 54-7) FCP-OC320 / FCP-OC320-R470 < 0.23 dB/m FCP-OT320 / FCP-OT320-R470 < 0.19 dB/m FCP-O320 / FCP-O320-R470 < 0.16 dB/m
Thermal maximum part >54 °C
Thermal rate-of-rise part (in line with EN 54‑5) FCH-T320 / FCH-T320-R470: A2R FCH-T320-FSA: A1R
Chemical part In ppm range
Color code
FCP-OC320 / FCP-OC320-R470 Blue ring
FCP-OT320 / FCP-OT320-R470 Black ring
FCP-O320 / FCP-O320-R470 No marking
FCH-T320 / FCH-T320-R470 / -FSA Red ring



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