Heat Detectors

Series 200 Rate of Rise Heat Detector

The Series 200 Rate of Rise Heat Detector range 52051RE provides fixed 58⁰C and rate-of-rise (10⁰C/minute) temperature sensing (Class A1R).


The 52051RE uses the thermistor 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). With the implementation of the Series 200 Advanced Protocol, any model can be software configured to be either a fixed 58°, a fixed 78° unit or a 58° with rate of rise device. For backwards compatibility and approval continuity, three separate versions continue to be available as separate part numbers. The sensing elements of all three heat sensors are panel controllable through the Series 200 Advanced Protocol so the sensitivity thresholds of each element can be changed by the panel offering the ability to customise the device for the changing use of the area it is protecting.

Features & Benefits:
  • Rate of Rise heat detectors
  • Includes Series 200 Advanced Protocol and the ability to customise the heat thresholds of each detector to the specific risks found in the application
  • Tri colour LED offering red, green and amber colours
  • Rotary decade address switches
  • 100% mechanical and electrical backwards compatibility
  • New Base design to compliment the detector
  • 199n/15
  • 0786-CPR-20661
  • G209024
  • TCC 2 - K829/a
  • B.04068
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