Siemens „QRB1A-A148B70B“-Flammensensor

Siemens QRB1A-A148B70B flame sensor is a reliable photodetector for monitoring flame presence in oil-fired burners, designed for safe and stable operation of boiler and heat engineering equipment. The device is used in automatic combustion control systems and provides precise monitoring of the combustion process in residential, commercial, and industrial heating systems. Siemens QRB1A-A148B70B 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 boilers, heat generators, and other heating equipment requiring reliable flame presence monitoring and uninterrupted automation. Advantages of Siemens QRB1A-A148B70B: • Reliable flame presence monitoring • Fast response to flame loss • Suitable for oil-fired 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 / photodetector • Model: Siemens QRB1A-A148B70B • Purpose: flame monitoring for oil-fired burners • Fuel type: diesel fuel, heavy oil • Operating principle: photoelectric flame monitoring • Compatibility: Siemens burner controls of LOA, LMO series and similar • Application: boilers, heat generators, burner devices • Mounting: integrated into burner equipment • Housing material: heat-resistant plastic