Siemens QRB1A-A033B40B flame sensor

Siemens QRB1A-A033B40B flame sensor — a highly sensitive photodetector for monitoring flame presence in oil burners. The device is designed for use in automatic combustion control systems and ensures safe, stable, and efficient operation of boiler and thermal equipment. Siemens QRB1A-A033B40B monitors the combustion process by detecting the light emission of the flame and transmitting a signal to the burner control. In case of flame loss, the sensor instantly initiates an emergency shutdown of fuel supply, helping to prevent accidents, enhance equipment safety, and protect the system from damage. The model features a compact design, high reliability, 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 flame monitoring and uninterrupted automation operation. Advantages of Siemens QRB1A-A033B40B: • Reliable flame presence monitoring • Fast response to flame loss • Suitable for oil 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 QRB1A-A033B40B • Purpose: flame monitoring for oil burners • Fuel type: diesel, heavy oil • Operating principle: photoelectric flame monitoring • Compatibility: Siemens LOA, LMO series burner controls and similar • Application: boilers, heat generators, burner devices • Mounting: built into the burner • Housing material: heat-resistant plastic • Manufacturer: Siemens