Overvoltage protection circuit to prevent high voltage.Three sets of common mode filters combined through X2 capacitors and common mode inductors for enhanced noise removal.Effective in reducing rapid transient group pulse interference with a repetition frequency of several thousand hertz.Extends the service life of electrical appliances and increases equipment stability.Rated for single-phase AC input and output voltage of 110-250V, with a load current of 15A-20A.Input voltage: single-phase AC 110-250VOutput voltage: single-phase AC 110-250VRated current of load: 15A -20AInput port: Three wire 7 62 socket inputOutput port: 3-wire 7 62 socket outputFunction: overvoltage protection (surge protection)Three sets of common mode and bidirectional EMI filtering to prevent interferenceMain parts selection:X2 capacitors: Germany Ximen 0.22UF 4PCSY2 capacitors: 275V 3300PF 4PCSCommon mode inductance: 3 PCSVaristor: 2D561K 1PCSResistance: 1 PCSSocket: 7 62 2PIN, 3PIN, 1 PCS eachCircuit board: FR4 double-sided.Color: As ShownMaterial: PCBSpecification: 20APackage Contents:1*EMI FilterOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.