1) Add an overvoltage protection circuit to prevent high voltage.2) Use a set of differential mode filters and two differential inductors to perform differential mode filtering on the AC power supply to suppress mid- and high-frequency interference.3) Three sets of common mode filters are combined by X2 capacitor and common mode inductor to form a common mode filter. Due to the use of three-level (also known as three-level) filtering, the effect of filtering out noise is better. It can effectively suppress the fast transient group pulse interference problem of some user sites with a repetition frequency of several thousand hertz.Type:EMI filterStyle:EMC Safety Rules FCC:ElectricalEMI filter:AC 220v power supplyFour-stage (four-stage) EMI line filterInput voltage:single-phase AC 110-250VOutput voltage:single-phase AC 110-250VInput port:three-wire 7.62 socket inputOutput port:three-wire 7.62 socket outputFunction:Overvoltage protection ( protection)Short circuit protectionDifferential mode + common mode bidirectional EMI filtering to prevent interferenceExtend the service life of electrical appliances and increase equipment stabilityLoad rated current:4AColour:As ShownMaterial:ABSPackage Contents:1 * 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.