Cewka 21s4 De Dietrich 7776200

This coil, designated 21s4, is a critical component in many heating systems, functioning as an electromagnetic actuator for valves or relays. As a boiler spare part, it ensures precise control of gas or water flow within the system. Ideal for burner spare parts applications, this coil supports reliable ignition and modulation. Technicians will find it useful for boiler maintenance and repair, helping to restore proper operation of heating equipment components.