الصمام الثنائي للأشعة فوق البنفسجية QRA 55 E27 Siemens (L+G)

UV diode QRA 55 E27 from Siemens (L+G) is a highly sensitive flame sensor with a threaded E27 base. It is designed to detect ultraviolet radiation in burners and boilers, providing reliable combustion process monitoring. This element is widely used in safety automation systems for heating equipment. The QRA 55 E27 UV diode features increased reliability and response accuracy. Replacing a faulty sensor with this original Siemens component will help restore correct burner operation. Before purchase, check compatibility with your device.