Rate of rise thermal detector

HM/RHSE

The detector uses the thermister and microprocessor technology to provide an alarm when the rate of rise in temperature exceeds 10°C/minute (typical) or if the temperature exceeds a threshold of 58°C response Class A1R). The detector has two integral red LEDs that provide 360° local visual indication of the device status.


*Do not install detectors in locations where normal ambient temperature exceeds 50° C.

  • Advanced protocol and smoothing filter to suppress false alarm
  • Rotary decade address switches
  • Analog addressable communication
  • Dual integrated LED for 360° visibility
  • Specification: EN54-5
  • LPCB approved
  • Environment friendly - meets RoHS legislative requirements
Operating voltage 15 ... 32 V DC
Humidity 10 ... 93% (non-condensing)
Dimension ø: 102 mm (with base MI/B501AP/IV) H: 61 mm (with base MI/B501AP/IV)
Weight 88 g
Color Ivory
Maximum standby current 200 uA @ 24 V DC (no LED blink) 300 uA @ 24 V DC (LED blink enabled)
Led current 3.5 mA @ 24 V DC
Remote output voltage 22.5 V DC @ 24 V DC input
Remote output current 10.8 mA @ 24 V DC
Temperature range -30°C ... +70°C*
Max. wire guage 2.5 sqmm
Material PC / ABS
  • MI/B501AP/IV Detector and AV standard base
  • SMK400AP-IV Deep base for MI/B501AP/IV

Promotional - Product Data Sheets

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Product data sheet Honeywell Morley-IAS HM Detectors Version: 08.2016 327 KB