Arc striking device for molded case circuit breaker

The utility model relates to an arc striking device for a molded case circuit breaker, which comprises a plurality of arc striking sheets in interference fit with an upper cover clamping groove, eacharc striking sheet is bent into an upper sheet body and a lower sheet body by a sheet body, the outer side of the upper sheet body protrudes outwards to form a plurality of convex hulls, and the leftside and the right side of the upper sheet body respectively protrude outwards to form side bosses. The utility model has a simple structure, convenient use, arc striking sheet, the arrangement of thearc striking sheet is equivalent to the addition of an arc extinguishing grid sheet; the molded case circuit breaker can lengthen the arc and cut the cooling arc when breaking the arc, so that the arc is quickly transferred through the arc striking sheet and gathered at the movable contact bracket, thereby reducing the arc energy, improving the reliability of breaking current when the fault current comes, and reducing the