Description
SIEMENS Flame Detector QRA4.U for Reliable Fire Detection
Reliable flame detection with dual UV/IR technology for industrial fire safety applications.
| Brand | Siemens |
| Model | QRA4.U |
| Voltage | 24V DC |
| Country of Origin | Germany |
| Weight | 0.3 kg |
| Dimensions | 100 mm x 50 mm x 30 mm |
| Warranty | 2 years |
| Certifications | EN 54-10, FM, VdS, UL |
| SKU / MPN | QRA4.U |
| What’s in the box | Flame detector, mounting bracket, instruction manual |
| Spectral Sensitivity | UV/IR dual spectrum |
| Detection Range | Up to 50 meters for n-heptane fire |
| Response Time | < 5 seconds |
| Operating Temperature | -40°C to +70°C |
| Protection Rating | IP66 |
| Output Signal | Relay, 4-20 mA, RS-485 |
Key benefits: High immunity to false alarms, fast response time, robust design for harsh environments.
Typical applications: Oil and gas refineries, chemical plants, power generation facilities, industrial burners.
Order number: SIEMENS Flame Detector QRA4.U for Reliable Fire Detection
Lifecycle: Active, with support and spare parts available for 10 years.
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.
Kevin H. –
Fast delivery and well packed. The servo drive performs exactly as specified.