Orbis Intrinsically Safe Heat Detector A1R ORB-HT-51146 24v Power Supply • Weatherproof button (IP66) •

• Weatherproof button (IP66) • High impact

based on advanced technology and supported by highly configurable software

staff rooms

Application of an external 24V dc supply such as a sounder circuit

Designed to simplify call-handling on larger EVC installations

Orbis Intrinsically Safe Heat Detector A1R ORB-HT-51146 24v Power Supply • Weatherproof button (IP66) •The 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.