QRA75.A17 flame detector - View 1
Siemens

QRA75.A17 flame detector

Technical Specifications

ParameterSpecification
Product TypeUV Flame Detector
ModelQRA75.A17
Detection PrincipleUltraviolet (UV) flame detection
ApplicationIndustrial Gas and Oil Burner Systems
Compatible ControllersSiemens LFL, LFE, LME Series (depending on system configuration)
Spectral RangeUltraviolet radiation (UV flame sensing)
Cable LengthApprox. 1.7 meters (fixed cable version)
Operating VoltageSupplied by compatible burner controller
MountingFront mounting with viewing window
HousingIndustrial-grade metal housing
Operating TemperatureSuitable for industrial combustion environments
Protection ClassIndustrial design
ConditionNew / 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.

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