Three-in-one electric reactor

The utility model discloses a three-in-one reactor which comprises a reactor assembly, an installation box used for assembling the reactor is arranged outside the reactor assembly, an inductance assembly is installed in one side of the installation box, an installation epoxy plate is fixedly installed on the inner wall of the top of the installation box, black glue is poured in the installation box, and the installation box is provided with a plurality of through holes. The reactance assembly comprises a magnetic core, reactance flat coils are wound outside the two sides of the magnetic core, a protective epoxy plate is attached to the inner wall of one side of the magnetic core, and the protective epoxy plate is arranged between the two reactance flat coils. Through cooperative use of the reactance assembly, the inductor assembly and the mounting box, the reactor can be combined and assembled conveniently, the influence of a single product plug-in on efficiency is avoided, meanwhile, the reactance assembly a