2 wire heat detector EN54 conventional fire alarm system

  • Model: WT-105
  • Shipping Weight: 0.3 kgs
  • 1000 Units in Stock
  • Manufactured by: HST fire alarm

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Fire Detector Heat sensor Conventional 2-wire fire automatic alarm system.
The device is intelligent sensors that utilize a state-of the-art thermistor sensing circuit for fast response. The device is a rate-of-rise temperature sensor with 135°F fixed temperature alarm. The device is a rate-of-rise with fixed temperature alarm thermal detector utilizing a state-of-the-art dual thermistor sensing circuit. These detectors are designed to provide open area protection with 50-foot spacing capability, and are to be used with compatible control panels only.
Two LEDs on each detector light to provide 360°visibility of the detector indication.
Features and Benefits
Compatible with all the conventional fire alarm control panel
Unpolarized wire input
Wide range of operating voltages
High precision electronic thermistor
Built in microprocessor intelligent software
Two LEDs blink standby, provide 360° visibility
Insect-resistant screening
Twist-on mounting base with tamper lock
Remote Indicator LED can be connected.
Technical Specifications
Diameter: 103mm
Height (including mounting base): 55 mm
Weight: 155 g
Operating Temperature Range: -10°C to 50°C
Operating Humidity Range: 10% to 93% Relative Humidity, Noncondensing
Latching Alarm: Reset by momentary power interruption

System Voltage (nominal): 24 VDC (9V~ 28VDC)
Standby Current: 40 μA @ 24VDC
Alarm Current: 30 mA @ 24VDC
Fixed Temperature Rating: 57°C (135°F)
Rate of Rise Detection: Responds to greater than 15°F/min


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