Structure of contacts for air circuit breaker

A structure of contacts for an aft circuit breaker, the structure comprising:

• a fixed contact arm having a fixed contact;
• and
• a movable contact arm having a movable contact, and rotatably installed to be brought into contact with or separated from the fixed contact arm,
• wherein the fixed contact and the movable contact have contact surfaces, respectively, that are disposed in an inclined manner, and
• wherein a line commonly passing the contact surfaces of the fixed contact and the movable contact forms an acute angle with respect to a line passing through a center of a longitudinal axis of the movable contact arm,
• wherein the movable contact arm is located on a cage rotatably installed in a housing, wherein a contact spring is interposed between the cage and the movable contact arm, wherein the contact spring, the movable contact and a rotation shaft of the movable contact arm are sequentially arranged in a longitudinal axial direction of the movable contact arm, starting from an end of the movable contact arm, and
• wherein the contact spring is located perpendicular to the longitudinal axial direction of the movable contact arm,
• wherein the fixed contact is coupled to a fixed contact sheet that is formed by bending a part of the fixed contact arm, and the movable contact is coupled to a movable contact sheet that is formed by bending a part of the movable contact arm.