SIEMENS QRA55.E27 flame detector

  • Industrial gas and oil burners
  • Large-capacity boilers and furnaces
  • Power plants, petrochemical facilities, process heating systems
  • Safety applications requiring continuous flame supervision
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    The SIEMENS QRA55.E27 is a UV flame detector designed for continuous operation in industrial gas and oil burners. It is suitable for monitoring yellow or blue-burning oil flames and gas flames, providing reliable flame supervision in large-capacity burners.
  • Flame Detection Type: UV (ultraviolet light)
  • Operating Voltage: 230V AC
  • Detection Wavelength: 190–270 nm
  • Operation Mode: Continuous
  • Sensitivity: Normal
  • UV Cell Lifetime: Approx. 10,000 hours at max. 50°C (higher temperatures reduce lifetime)
  • Protection Class: IP65
  • Dimensions: 25.46 cm x 8.5 cm x 8.2 cm
  • Operating Temperature: -20°C ... +80°C