Newsletter Subscription

Register with your email and be among the first to learn about our new products, latest price updates, special deals and great offers.

    Heat Detector

    D-A412 Intelligent Rate of Rise and Fixed Temperature Heat Detector is an addressable fire alarm device cooperating with SHIELD intelligent fire alarm control panels to build a fire detection system.

    The detector shows fire alarm by the LED indicators. It uses thermistor as its sensor and transmits the signal to a microprocessor which, after voltage transfer, processes the signal using intelligent arithmetic and sends any fire alarm to the control panel. The LED indicators will then be lit by the control panel.

    • Twin LED for 360° view.
    • Electronically addressed in field.
    • Built-in microprocessor stores 14 history data.
    • Rate of rise and fixed temperature alarm modes.
    • Self-diagnostic.
    • Remote indicator output available.
    • Complies with EN 54-5 standard.

    D-A412 Intelligent Rate of Rise and Fixed Temperature Heat Detector is an addressable fire alarm device cooperating with SHIELD intelligent fire alarm control panels to build a fire detection system.

    The detector shows fire alarm by the LED indicators. It uses thermistor as its sensor and transmits the signal to a microprocessor which, after voltage transfer, processes the signal using intelligent arithmetic and sends any fire alarm to the control panel. The LED indicators will then be lit by the control panel.

    • Twin LED for 360° view.
    • Electronically addressed in field.
    • Built-in microprocessor stores 14 history data.
    • Rate of rise and fixed temperature alarm modes.
    • Self-diagnostic.
    • Remote indicator output available.
    • Complies with EN 54-5 standard.

    Specifications

    Operating Voltage Loop 24V (16V～28V)
    Standby Current ≤0.8mA
    Alarm Current ≤5.0mA
    Indicators Red. Flashes in normal condition, and illuminates in alarming
    Remote indicator output Directly connect to remote indicator (built-in 5.1kΩ resistor in series. Max. output current is 5.0mA). Quiet in normal condition. Illuminates in alarming
    Action Temperature 58°C
    Programming Method Electronically programming
    Code Range one address within 1～242.
    Class A1R
    Wiring Non-polarized 2-core for loop.
    Polarized 2-core for remote indicator.
    Ingress Protection Rating IP33
    Ambient Temperature -10°C～+50°C
    Relative Humidity ≤95%, non condensing
    Material and Color of Enclosure ABS, white (RAL 9016)
    Dimensions Diameter: 100mm
    Height: 58mm (with base)
    Mounting Hole Spacing 45mm～75mm
    Weight About 120g

     

    Downloads

    Download Certificate

    Download Catalog