Breaker facilitating rapid movement and elongation of arc

A breaker for facilitating rapid movement and elongation of an arc, the breaker comprising:

• a base;
• a fixed contact;
• an arc extinguishing chamber comprising arc ignition grid plates;
• a movable contact;
• and
• an operating mechanism, wherein:
• the arc extinguishing chamber is located on a left side of the movable contact;
• the operating mechanism controls connection/disconnection of the movable contact and the fixed contact;
• the fixed contact comprises a conductive substrate, an arc ignition portion and an electric contact, the arc ignition portion and the electric contact are fixed on a connection surface, and the connection surface forms an acute angle which is located in a first quadrant relative to a bottom plane of the base;
• the movable contact comprises a conductive rod provided with a projection portion, and an electric contact welded on an end face of the projection portion and towards the electric contact of the fixed contact;
• and
• a contact surface of the electric contact of the fixed contact for contacting with the electric contact of the movable contact forms an angle within a range of 20°-35° relative to the bottom plane of the base.