Arc extinguishing system for contactor and contactor

An arc extinguishing system for a contactor, used for extinguishing an arc generated upon a movable contact and a stationary contact of the contactor being separated, wherein the arc extinguishing system comprises:

• an arc extinguishing chamber, accommodating a plurality of arc extinguishing grids, and an extension direction of each of the plurality of arc extinguishing grids being perpendicular to an extension direction of the movable contact;
• an arc striking piece, electrically connected to the stationary contact and configured to extend toward the arc extinguishing chamber, so that the arc generated upon the movable contact and the stationary contact being separated moves along the arc striking piece toward the arc extinguishing chamber.