
QRA75.A17 flame detector
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | UV Flame Detector |
| Model | QRA75.A17 |
| Detection Principle | Ultraviolet (UV) flame detection |
| Application | Industrial Gas and Oil Burner Systems |
| Compatible Controllers | Siemens LFL, LFE, LME Series (depending on system configuration) |
| Spectral Range | Ultraviolet radiation (UV flame sensing) |
| Cable Length | Approx. 1.7 meters (fixed cable version) |
| Operating Voltage | Supplied by compatible burner controller |
| Mounting | Front mounting with viewing window |
| Housing | Industrial-grade metal housing |
| Operating Temperature | Suitable for industrial combustion environments |
| Protection Class | Industrial design |
| Condition | New / OEM |
Notes
Product Overview
The Siemens QRA75.A17 is an ultraviolet (UV) flame detector designed for industrial combustion safety systems.
It detects ultraviolet radiation emitted by a flame and transmits a flame signal to the compatible burner control unit to ensure safe burner operation.
The QRA75.A17 is typically used in medium to large industrial gas-fired and oil-fired burners installed in boilers, furnaces, kilns, and process heating systems.
The ".A17" designation generally refers to the fixed cable length configuration, making it suitable for installations requiring a predefined connection length.
This detector is commonly paired with Siemens burner control units such as the LFL and LME series and is suitable for continuous industrial operation.
Key Features
- Ultraviolet flame detection technology
- Fixed cable configuration (approx. 1.7 m)
- Designed for industrial burner safety applications
- Compatible with Siemens LFL and LME controllers
- Durable metal housing for industrial environments
- Reliable flame supervision performance
- Suitable for gas and oil-fired combustion systems
- Designed for continuous industrial duty
Packaging & Delivery
- Individual protective industrial carton packaging
- Shock-resistant internal packaging materials
- Standard export packaging for international shipment
- Fast dispatch for stocked models
- Shipping via courier, air freight, or sea freight
- Bulk supply available for OEM and distributor customers
Frequently Asked Questions (FAQ)
Q: What is the Siemens QRA75.A17 used for?
A: It is a UV flame detector used for monitoring flame presence in industrial gas and oil burner systems.
Q: What does ".A17" mean in QRA75.A17?
A: It typically indicates the cable length configuration (approximately 1.7 meters fixed cable).
Q: Which controllers are compatible with QRA75.A17?
A: It is commonly used with Siemens LFL, LFE, and LME series burner control units depending on system configuration.
Q: Is QRA75.A17 suitable for industrial boilers?
A: Yes. It is widely installed in industrial boilers, furnaces, and other combustion systems.
Q: Can it be used for both gas and oil burners?
A: Yes. It is suitable for both gas-fired and oil-fired industrial burner systems.
Q: Do you provide worldwide shipping?
A: Yes. International shipping is available.


