
Apollo ORB-HT-51158-APO Orbis I.S. A1S Heat Detector, Flashing LED
Request a quote for pricing and availability. Installation, commissioning and compatibility checks with your existing system are also available.
Technical documents and wiring diagrams
PDFDatasheetOrbis I.S. Heat Detector Datasheet
EnglishIncludes a wiring diagramPDFDatasheet
Orbis I.S. Technical Datasheet
EnglishIncludes a wiring diagramPDFCertification
Orbis I.S. EU Type Examination Certificate
EnglishPDFCertification
Orbis I.S. Declaration of Conformity
English
The manufacturer has not published Turkish documentation for this product; please contact us for technical support in Turkish.
Product description
The Orbis I.S. A1S heat detector senses ambient temperature and signals the fire detection system. It can be used in normally dusty or smoky environments, and hazardous areas where smoke detectors are not appropriate. The page states that it is not available in the UK market.
Key features
- Class A1S heat rating
- Flashing alarm LED
- Temperature-sensitive resistance sensing principle
- Suitable for dusty and normally smoky environments
- Designed for use in hazardous areas
- 10-year warranty
Technical specifications
| Detection principle | Temperature-sensitive resistance |
|---|---|
| Heat class | A1S |
| Operating voltage (detector active) | Minimum 12 V |
| Quiescent current | 80 µA (at 24 V DC) |
| Operating temperature | -40 to 70 °C |
| Humidity | 0–98%; without condensation or icing |
| Protection rating | IP23D |
| Colour | White |
| Dimensions | 42 mm long, 100 mm diameter |
| Weight | 70 g |
Information has been compiled from manufacturer/distributor sources. Please consult the documentation for current technical specifications.
Other Apollo products

Apollo 29600-929 Conventional End-to-End Beam Detector

Apollo 29650-069 Self-Aligning Conventional Reflective Beam Detector

Apollo 29650-081APO Single-Point Aspirating Smoke Detector

Apollo 29650-082APO Dual-Point Aspirating Smoke Detector
Request a site survey and quote for your project
Tell us about your building, existing system and requirements; together, we can determine the right solution.
