Orbis Heat Detector

Product Overview

The Orbis Heat Detector monitors temperature by using a single thermistor network which provides a voltage output proportional to the external air temperature. There are seven classes of heat detectors in the Orbis range designed to suit a wide variety of operating conditions.


  •  Can be used for applications where smoke detectors are unsuitable
  •  Ideal in environments that are dirty or smoky under normal conditions
  •  Reduced incidence of false alarms
  •  Increased reliability of detection


Approvals: AS7240.5


Operating voltage 8.5 to 33 VDC
Quiescent current 65µA at 24 VDC
Alarm current 40mA at 24 VDC
Remote output 1.2k to -ve supply
Size 100mm Dia x 51mm H inc base
Operating temperature -40°C to +70°C (no icing)
Relative humidity 0 to 98% (non condensing)
IP rating IP23D (indoor use)
Weight 130 grams inc base

Item Numbers

4106-1053 Orbis A1R Heat Detector Rate of Rise
4106-1054 Orbis A2S Heat Detector (Type B) Static
4106-1055 Orbis BR Heat Detector (Type A) Rate of Rise
4106-1056 Orbis BS Heat Detector Static
4106-1057 Orbis CR Heat Detector (Type C) Rate of Rise
4106-1058 Orbis CS Heat Detector (Type D) Static