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Heat Detector


The KAWAPI KP-303 Mechanical Heat Detector is intended for use in property protection applications or for non-life-safety installations where smoke detection is not practical or appropriate.

This detector consists of single-circuit, featuring rate-of-rise thermal sensors or combination fixed temperature & rate-of-rise sensors, with temperature ratings of 135ºF (57ºC) or 194ºF (90ºC) & carrying the CE Marking.

CE Certification No.: CE08DC1439

Heat Detector


  • CE Marked
  • Visible LED Indication
  • Individual or Combination Sensor
  • 135ºF (57ºC) or 194ºF (90ºC)
  • Easy to use terminal screw
  • A broad range of back box mounting
  • Low Profile design
  • Fault Monitoring Contact
  • Optional Remote LED output
  • Non Indicating Version available

Technical Specification

React to the sudden change or rise in ambient temperature from a normal baseline condition. Any sudden temperature increase that matches the predetermined alarm criteria will cause an alarm. This type of heat detector can react to a lower threshold condition than would be possible if the threshold were fixed. A typical alarm may sound when the rate of temperature rise exceeds 12° to 15°F (6.7° to 8.3°C) per minute.

Fixed Temperature(FX)
If the temperature of the center disk rises to the detector’s rated temperature (135°F or 194°F) the fixed temperature element activates. This closes contacts in the detector to fire the latching circuit which turns on the detector’s LED and transmits the alarm condition to the fire alarm control panel.

The fixed temperature element is non restorable and, when activated, the detector must be replaced. The need for replacement is indicated when the center disk (see illustration) has fallen free. After replacing the detector, the control panel reset switch may be operated to reset the system.

Standby Current
Operating Current
Input Wire Gauge

| 12 or 24VDC
| Nil
| <2mA
| AWG 14~22
| White
| 101mm(4inch)
| 43.5mm(1.7inch)
| 118gm

Termination Instruction

  1. Positive In (+)
  2. Positive Out (+)
  3. Negative In (-)
  4. Negative Out (-)
  5. Remote LED (Optional)

Voltage/Contact Rating

6~125VAC/3A, 125VDC/0.3A
6~28VDC/1A, 250VDC/0.3A


To prevent activation of the fixed temperature element, the shipping & storage temperature must not exceed 122°F (50°C)

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