Analogue Multi-Criteria Fire Detector 22051TE

Analogue Photoelectric Smoke/Thermal Multi-Criteria Fire Detector with SYSTEM SENSOR Protocol 22051TE

22051TE - Analogue Photoelectric Smoke/Thermal Multi-Criteria Fire Detector with SYSTEM SENSOR Protocol

The revolutionary Series 200 Advanced range delivers a totally new fire detector platform that incorporates the new digital Series 200 Advanced Protocol. The new Protocol delivers more devices on the loop and gives greater control, reconfigurability and device management whilst enabling the overall system to be optimised to the location and use of the building with far greater flexibility than ever before.
The multi-criteria multi-sensor 22051TE Photo Thermal fire detector uses thermal assistance to the core photoelectric smoke detector to give enhanced false alarm immunity and faster response to a wide range of incipient fires. The plug-in unit combines two separate sensing elements that are managed by embedded software to act as a single unit. The Fire Detector 22051TE conforms to EN54-5, a 58°C fixed temperature and rate of rise thermal, with the smoke detection element conforming to EN54-7.
The thermal detection function combines thermistor technology with a software corrected linear temperature response. In areas where the normal daytime activities may potentially create unwanted alarms, the fire detector can be programmed to operate in a heat only mode, automatically reverting to full photo-thermal operation during unoccupied periods.
The sensing elements of the fire detector 22051TE are panel controllable 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. The fire detector 22051TE has two integral tri-colour LEDs that provide 360© local visual indication of the device status. The LEDs are programmable with static or blinking red, amber and green status indications available.


- Two sensor multi-criteria fire detector incorporating photoelectric, and thermal sensing elements
- New mechanical platform with revolutionary chamber
- Includes Series 200 Advanced Protocol
- Available with or without single pole short circuit isolation with status control through the Series 200 Advanced Protocol
- Tri colour LED offering red, green and amber colours
- Rotary decade address switches
- Pure white colour to compliment modern buildings
- 100% mechanical and electrical backwards compatibility
- New Base design to compliment the detector


  • Operating Voltage Range : 15 to 32Vdc
  • Maximum Standby Current : 200uA at 24VDC (no communications) / 300uA at 24VDC ( LED blink enabled, once every 5s)
  • LED Current : Red: 3.5mA at 24Vdc, Green: 7.0mA @ 24Vdc, Yellow: 10.5mA @ 24Vdc
  • Remote Output Voltage : 22.5Vdc @ 24Vdc
  • Remote Output Current : 10.8mA @ 24Vdc
  • Additional Loop Resistance Using The B501AP : typ 20mohm (max 30 mohm)
  • Temperature Range : -30°C to +80°C
  • Humidity : 10 to 93% relative Humidity (non-condensing)
  • Height : 61mm installed in B501AP base
  • Diameter : 102mm installed in B501AP base
  • Weight : 99g (inc base)
  • Max Wire Gauge for Terminals : 2.5mm2
  • Colour : White
  • Material : PC/ABS
  • Alarm Level 1 : 1%/ft smoke
  • Alarm Level 2 : Adjusting 1% - 2%/ft smoke
  • Alarm Level 3 : 2%/ft smoke
  • Alarm Level 4 : Adjusting 2% - 3.5%/ft smoke
  • Alarm Level 5 : 3%/ft smoke
  • Alarm Level 6 : ClassA1R
  • Compatible Bases : B501AP Series, B500 Series (B501, B501DG, B524RTE, B524HTR, B524IEFT-1),
  • Other Devices in range : Please refer to other Series 200 Advanced Datasheets 22051E / EI, 22051TLE / TLEI, 52051RE/REI, 52051E/EI, 52051HTE /HTEI


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