Flame sensor QRB4A-B070B70 Siemens Intercal 88.70020-0592

Flame sensor QRB4A-B070B70 from Siemens is a reliable component for burner and boiler automation systems, designed to monitor the presence of flame. It provides accurate detection and signal transmission to the control unit, which is critical for safe and stable operation of heating equipment. This sensor is widely used in service and repair of boiler installations, allowing timely fault detection and prevention of emergency situations. Due to its high sensitivity and resistance to external influences, QRB4A-B070B70 is a sought-after spare part for professionals involved in commissioning and modernization of burner devices.