Patent ID: 6232570
Filing Date: 2001-05-15
Classification: H01H

Abstract:
A circuit breaker comprising:a rotatable contact arm having a central section having a first longitudinal axis,a first connecting arm having a second longitudinal axis intersecting the first longitudinal axis, said first connecting arm extending angularly from said central section, said first and second longitudinal axes lie in a first plane;a first fixed contact having a contact surface; anda first movable contact arranged at an end of said first connecting arm and having a contact surface positioned relative to the contact surface of the first fixed contact, said contact surface of said first movable contact having a heel portion and a toe portion, said contact surface of said first movable contact having a length located in the first plane and said first connecting arm having a length located in the first plane, said length of said first movable contact extends across the length of said first connecting arm;wherein when said first movable contact and said first fixed contact are in a closed position, said heel portion of said first movable contact engages said contact surface of said first fixed contact and said toe portion of said first movable contact is spaced from said contact surface of said first fixed contact, and when said first movable contact and said first fixed contact are separated, an arc formed between said heel portion of said first movable contact and said contact surface of said first fixed contact is drawn from said heel portion of said first movable contact towards said toe portion of said first movable contact, the arc extends between said toe portion of said first movable contact and said first fixed contact.