SIEMENS QRA2 UV. PHOTOCELL LAMP

General Description:
The SIEMENS QRA2 is a UV (ultraviolet) flame detector used for monitoring flame presence in gas and oil burners. It is compatible with Siemens burner control units such as the LGB, LME, and LFL series.

Technical Specifications:

• Flame Detection Type: UV (Ultraviolet light)

• Sensing Wavelength: 190 – 270 nm

• Compatible Controllers: LGB... / LME... / LFL...

• Supply Voltage: Provided via the controller

• Connection Type: Fixed cable or plug connector

• Cable Length: Standard 1.5 m (longer versions optional)

• Mounting: Direct on burner or via adapter

• Operating Temperature: -20 °C ... +80 °C

• Protection Rating: IP40 (with housing)

Applications:

• Industrial burner systems

• Boiler and heating systems

• Safety applications requiring flame monitoring

Advantages:

• High-sensitivity flame detection

• Compact and reliable design

• Wide compatibility with Siemens automatics

• Long service life and low maintenance