Heat Detectors

Series 200 Fixed Heat Detector

The Series 200 Fixed Heat Detector range 52051E provides fixed 58⁰C temperature sensing (Class A1S). They are plug-in type fire sensors that use a single thermistor sensing circuit to provide early warning of developing fires.


The 52051E range of detectors are fixed temperature analogue addressable sensors employing low mass thermistors and microprocessor technology for fast response and linear temperature sensing. Their linear response allows these sensors to be used to signal temperatures over the range of 58°C (Class A1S) to 78°C (Class BS). 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:
  • 58⁰C fixed temperature 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/17 issue 27
  • 0786-CPR-20659
  • G209022
  • TCC 2 - K829/a
  • B.04068
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