Description
Siemens UV Flame Detector QRA73.A27 for Fire Safety Systems
High-speed UV flame detection with advanced false alarm immunity for industrial fire safety systems.
| Brand | Siemens |
| Model | QRA73.A27 |
| Voltage | 24V DC ±10% |
| Country of Origin | Germany |
| Weight | 1.2 kg |
| Dimensions | 150 mm x 100 mm x 60 mm |
| Warranty | 2 years |
| Certifications | UL, CE, FM, ATEX |
| SKU / MPN | QRA73.A27-001 |
| What’s in the box | UV Flame Detector QRA73.A27, Mounting Bracket, User Manual, Calibration Certificate |
| Detection Range | 0.1 to 25 meters (depending on flame size) |
| Response Time | < 3 seconds |
| Spectral Range | 185 to 260 nm (UV-A/UV-B) |
| Operating Temperature | -20°C to +70°C |
| Ingress Protection | IP66 |
| Output Signal | Relay contact (NO/NC), 4-20mA (optional) |
Key benefits: Fast response to hydrocarbon flames, High immunity to sunlight and artificial light sources, Robust stainless steel housing for harsh environments, Self-test and fault monitoring functions
Typical applications: Oil and gas refineries, Chemical processing plants, Power generation facilities, Paint booths and spray areas, Aircraft hangars
Order number: Siemens UV Flame Detector QRA73.A27 for Fire Safety Systems
Lifecycle: 10 years (typical operational life)
Our Advantages
Exact match for many brands
We make replacements easy with an exact match for almost any brand.
We use OEM catalogs to match your part number
Don't worry about ordering the wrong part by matching your part number with our OEM catalogs.
Competitively priced
Shop with confidence knowing we are offering very competitive pricing!
Orders usually ship the same day
Rest assured your order will arrive as soon as possible knowing we usually ship the same day.
Individually inspected
Before any package is shipped we carefully inspect every product to ensure quality.
Guaranteed for one full year
All of our New Surplus and Reconditioned products come with a 1 year warranty.
Run Business
Building a reputation for quality products at a reasonable price. Our inventory is far more extensive than what can be represented on our web site, so please call one of our knowledgeable salesmen with your specific needs.
David L. –
Good quality sensor, accurate readings. Will order more for our production line.