Orbis Intrinsically Safe Heat Detector BR ORB-HT-51150 Sounders Four Zone Call Controller NC944

Four Zone Call Controller NC944  (requires NC930 12V 250mA PSU)

Door Holder PSU 2AMP

provides 12 months access to our Surveyor2 monitoring service (yearly renewal fee applies

The Euro Stopper consists of a clear

They have an A (accept) button

Orbis Intrinsically Safe Heat Detector BR ORB-HT-51150 Sounders Four Zone Call Controller NC944The European Standard EN 54 5 classifies heat detectors to the highest ambient temperature in which they can safely be used without risk of false alarm. The classes are identified by the letters A to G (Class 1 is subdivided into A1 and A2). In addition to the basic classification, detectors may be identified by a suffix to show that they are rate of rise (suffix R) or fixed (static) temperature (suffix S) types. All heat detectors in the Orbis I. S.