Siemens QRB1E-B070B40A flame sensor

Siemens QRB1E-B070B40A flame sensor — a reliable photoelectric detector for monitoring flame presence in 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 combustion monitoring in residential, commercial, and industrial installations. Siemens QRB1E-B070B40A detects the light emission of the flame and transmits a signal to the burner control unit. If the flame goes out, the sensor instantly triggers an emergency shutdown of fuel supply, helping to prevent accidents, improve operational safety, and protect equipment from damage. The model features high sensitivity, stable operation, and durability even under intensive use. The sensor is widely used in diesel and heavy oil burners of boilers, heat generators, and other heating equipment requiring reliable flame monitoring and uninterrupted automation. Advantages of Siemens QRB1E-B070B40A: • Reliable flame presence monitoring • Fast response to flame loss • Suitable for liquid fuel burners • High sensitivity and operational stability • Compatibility with Siemens burner controls • Compact design and easy installation • Durability and simple maintenance Specifications: • Device type: flame sensor / photoelectric detector • Model: Siemens QRB1E-B070B40A • Purpose: flame monitoring for liquid fuel burners • Fuel type: diesel fuel, heavy oil • Operating principle: photoelectric flame detection • Compatibility: Siemens automation systems and burner controls • Application area: boilers, heat generators, burner devices • Mounting: integrated into burner equipment • Housing material: heat-resistant