Siemens QRB4B-C036B40B flame sensor

Siemens QRB4B-C036B40B flame sensor is a highly sensitive photodetector for flame presence monitoring in liquid fuel burners. The device is designed for operation in automatic combustion control systems and ensures safe, stable, and efficient operation of boiler and heat engineering equipment. Siemens QRB4B-C036B40B detects the light emission of the flame and transmits a signal to the burner control. If the flame goes out, the sensor instantly triggers an emergency fuel shut-off, helping to prevent accidents, improve equipment safety, and protect the system from damage. The model features high sensitivity, reliable operation, and resistance to long-term operational loads. The sensor is widely used in diesel and heavy oil burners of heating boilers, heat generators, and other equipment requiring precise combustion control and uninterrupted automation operation. Advantages of Siemens QRB4B-C036B40B: • 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 minimal maintenance Specifications: • Device type: flame sensor / photodetector • Model: Siemens QRB4B-C036B40B • 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: integrated into burner • Housing material: heat-resistant plastic • Manufacturer: Siemens • Brand country: Germany