Nittan 80C Heat Detector
NHD-GH1 Fast Response Heat Detector -Blue Dot80 Deg.C Nominal Alarm Temp.
The NHD-G series heat detectors are fast response heat detectors for use in conventional fire detection systems. They may be used in most cases as a direct replcement for our 2SA-70T-LS, TCA-60-LS and TCA-70-LS heat detectors.
The detector is non-mechanical and uses a thermister of low thermal mass as the sensing element, giving a fast response. Four different response grades are available to BS 5445/EN54 part 5, grades 1, 2, 3 plus a high temperature version to BS 5445/EN54 Part 8. Although these detectors operate on the principle of a fixed threshold only, their fast response make them generally suitalble where combined rate-of-rise heat detectors would normally be required.
The NHD-G heat detectors are unobtrusive and attractive in appearance. A very low monitoring current is used and a red fire LED indicator is incorporated, which latches in alarm. All NHD-G heat detectors have four terminals, as standard, allowing a transistor switching facility capable of ‘sinking’ 100mA, ideally suitable for switching remote LED indicators
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