Orbis Marine Heat Detector (BR) ORB-HT-41003-MAR



  • Can be used for applications where smoke detectors are unsuitable
  • Ideal for dirty or smoky environments
  • Red flashing LED at StartUp confirms the device is operating.
  • Integral indicator with 360º visibility
  • EN54-5 and EN54-7 Standard


Detection principle Measurement of heat by means of a thermistor.
Supply Wiring Two wire supply, polarity insensitive
Supply voltage 8.5 V dc to 33 V dc
Maximum polarity reversa 200 ms
Power up time < 20 seconds
Minimum ‘detector active’ voltage 6 V
Power-up surge current at 24 V 95 µA
Average quiescent current at 24 V 95 µA
Alarm current 12 V 20 mA
24 V 40 mA
Alarm load 600 Ω
Holding voltage 5 V - 33 V
Minimum holding current 8 mA
Minimum voltage to light alarm LED 5 V
Alarm reset voltage < 1 V
Alarm reset time One second
Alarm indicator Integral indicator with 360º visibility
Remote output LED (-) characteristic 1.2 kΩ connected to negative supply
Operating and storage temperature -40ºC to +70ºC
Humidity (no condensation or icing) 0% to 98% RH
Effect of atmospheric pressure on optical sensor None
Effect of wind speed None
Designed to IP Rating IP23D
Standards & approvals EN54-5, EN54-7, MED, LR, DNV-GL, BV, ABS, CCS, KRS and CRS
Dimensions 97 mm diameter x 36 mm height
100 mm diameter x 51 mm height in base
Weight 70 g detector
130 g detector with base
Materials Housing: White flame-retardant polycarbonate
Terminals: Nickel plated stainless steel