Siemens QRA55.E27 UV flame sensor

Siemens QRA55.E27 ultraviolet flame sensor — a high-precision flame monitoring sensor for industrial gas, liquid fuel and dual-fuel burners. The device is designed to detect ultraviolet radiation from the flame and is used in automatic combustion control systems to ensure safe and stable operation of heat engineering equipment. The Siemens QRA55.E27 is used together with Siemens burner controls and provides continuous monitoring of the flame presence during burner operation. If the flame goes out, the sensor instantly sends a signal to the control unit for emergency fuel shut-off, which helps prevent emergency situations and increase equipment operation safety. The QRA55.E27 model features high sensitivity, immunity to interference and reliable operation under intensive industrial conditions. The sensor is widely used in boiler plants, heat generators, industrial furnaces, drying chambers and other systems requiring precise combustion control. Advantages of Siemens QRA55.E27: • Accurate flame monitoring via ultraviolet radiation • Fast response upon flame loss • Suitable for gas, liquid fuel and dual-fuel burners • Compatibility with Siemens burner controls • High reliability and durability • Resistance to industrial interference and loads • Easy installation and maintenance The Siemens QRA55.E27 ultraviolet sensor is in demand in industrial heat power engineering and automation systems, where safety, stable equipment operation and uninterrupted combustion control are especially important. Using an original Siemens sensor helps minimize the risk of emergency shutdowns and increase the efficiency of burner system operation.