Electromagnetic contactor capable of effectively extinguishing arc

A magnetic contactor comprising:

• a coil electrically connected to an outside;
• a fixed core located adjacent to the coil and magnetized by a magnetic field produced by the coil;
• a movable core spaced apart from the fixed core by a predetermined first distance and configured to move toward the fixed core by magnetic attraction generated by magnetization of the fixed core;
• a crossbar connected to the movable core and including a movable contact;
• a fixed contact spaced apart from the movable contact by a predetermined second distance;
• a plurality of wall portions configured to surround the fixed contact;
• and,
• wherein the plurality of wall portions comprises:
• a first wall portion located spaced apart from the fixed contact by a predetermined third distance in a first direction,
• a second wall portion located spaced apart from the fixed contact in a second direction by a predetermined fourth distance and spaced apart from the first wall portion in the first direction, and
• a third wall portion located spaced apart from the fixed contact in a third direction, opposite to the second direction, by the predetermined fourth distance and facing the second wall portion with the fixed contact interposed therebetween, and spaced apart from the first wall portion in the first direction;
• and
• a grid formed of a magnetic material and located spaced apart from the first wall portion by a predetermined fifth distance in a fourth direction perpendicular to the first direction,
• wherein a first side of the second wall is separated from a first side of the first wall and a second side of the second wall is separated from a second side of the first wall,
• wherein the plurality of wall portions is configured to induce an arc generated from between the fixed contact and the movable contact toward the grid.