Electromagnet with regulating spring

An electromagnet with a regulating spring is applied to contactors and various control or protection electrical devices and comprises a I-shaped or C-shaped core, a core limiting support, a coil fixed on the support, at least one yoke component, and a spring fixed in the core, wherein the yoke components opposite to the core are fixed on the support. The electromagnet is characterized by further comprising a spring regulator which comprises a guide segment and a threaded segment. The threaded segment is adjustably fixed on one side of the electromagnet in a threaded manner. The guide segment extends up in the vertical direction into the core. A spring is sleeved on the guide segment. One end of the spring is abutted to the core or the support, and the other end of the spring is abutted to the threaded segment. The electromagnet has the advantages that the spring is disposed on the spring regulator, elongation of the spring is controlled by adjusting the spring regulator so as to adjust spring force and reduce