Siemens QRB3 flame sensor

Siemens QRB3 flame sensor is a reliable photodetector for monitoring flame presence in liquid fuel burners of heating and industrial equipment. The device is designed for use in automatic combustion control systems and ensures safe operation of boilers, heat generators, and other thermal installations. Siemens QRB3 monitors the presence of flame during burner operation and transmits a signal to the burner control. If the flame goes out, the sensor provides rapid emergency shutdown of fuel supply, helping to prevent hazardous situations, increase equipment operation safety, and reduce the risk of system damage. The sensor features high sensitivity to flame light radiation, stable operation, and durability. Siemens QRB3 is widely used in diesel and heavy oil burners of residential, commercial, and industrial boilers where reliable combustion control and uninterrupted operation of the automation system are required. Advantages of Siemens QRB3: • Reliable flame presence monitoring • Fast response to flame loss • Suitable for liquid fuel burners • Compact design and easy installation • Compatibility with Siemens burner controls • High reliability and long service life • Easy maintenance and replacement. The Siemens QRB3 flame sensor is in demand in heating systems and industrial thermal power engineering where safety, stable operation, and efficient combustion control are especially important. Using original Siemens equipment helps reduce the likelihood of emergency shutdowns and increase the reliability of burner equipment. Siemens QRB3 is the optimal solution for repair, modernization, or replacement of the standard flame sensor in liquid fuel burners.