Description
SIEMENS UV Flame Detector QRA4.U for Safety Systems
Reliable UV flame detection for safety-critical applications
| Brand | SIEMENS |
| Model | QRA4.U |
| Voltage | 24V DC |
| Country of Origin | Germany |
| Weight | 0.5 kg |
| Dimensions | 100 x 80 x 50 mm |
| Warranty | 1 year |
| Certifications | CE, ATEX, UL |
| SKU / MPN | QRA4.U |
| What’s in the box | Flame detector, mounting bracket, user manual |
| Detection Range | 0.1-10 meters |
| Response Time | < 1 second |
| Operating Temperature | -20 to 70°C |
| Protection Class | IP65 |
| Output Signal | Relay contact, 4-20mA |
| Spectral Range | UV (185-260 nm) |
Key benefits: Fast response, high immunity to false alarms, robust design
Typical applications: Industrial furnaces, boilers, combustion systems
Order number: SIEMENS UV Flame Detector QRA4.U for Safety Systems
Lifecycle: Active
Documentation: https://support.industry.siemens.com/cs/document/109745873
Typical applications: Industrial furnaces, boilers, combustion systems
Order number: SIEMENS UV Flame Detector QRA4.U for Safety Systems
Lifecycle: Active
Documentation: https://support.industry.siemens.com/cs/document/109745873
Mark O. –
The VFD works perfectly with our motor setup. Great communication from seller.