Siemens QRB1B-A035B40A flame sensor

Siemens QRB1B-A035B40A flame sensor is a reliable photoelectric flame detector for liquid fuel burners, designed for safe and stable operation of boiler and heat engineering equipment. The device is used in automatic combustion control systems and provides accurate monitoring of flame presence during burner operation. Siemens QRB1B-A035B40A detects the light emission of the flame and transmits a signal to the burner control. If the flame goes out, the sensor instantly initiates an emergency fuel shut-off, helping to prevent accidents, improve operational safety, and protect the system from damage. The model features high sensitivity, stable operation, and reliability over long-term use. The sensor is widely used in diesel and heavy oil burners of heating boilers, heat generators, and other heat engineering equipment requiring reliable combustion monitoring and uninterrupted automatic control. Advantages of Siemens QRB1B-A035B40A: • Reliable flame presence monitoring • Fast response to flame loss • Suitable for liquid fuel burners • High sensitivity and stable operation • Compatibility with Siemens burner controls • Compact design and easy installation • Durability and simple maintenance Specifications: • Device type: flame sensor / photodetector • Model: Siemens QRB1B-A035B40A • Purpose: flame monitoring for liquid fuel burners • Fuel type: diesel fuel, heavy oil • Operating principle: photoelectric flame detection • Compatibility: Siemens burner controls series LOA, LMO and similar • Application: boilers, heat generators, burner devices • Mounting: built into burner equipment • Housing material: heat-resistant plastic