A terminal device for connecting an end portion of an exciting coil to an external conductor, said exciting coil being formed on a bobbin and operating, for example, a contact of an electromagnetic contactor. The terminal device includes a terminal base mounted on the bobbin, an electrically conductive terminal plate, and means for mounting the terminal plate to the terminal base such that a force exerted on the terminal plate at its end connected to the external conductor is not transmitted to the end portion of the exciting coil.