Molded case circuit breaker contact arrangement including a spring clip contact arm retainer

A molded case circuit breaker comprising:

• a stationary contact carrioer member having a stationary contact affixed at one end thereof and a terminal lug at an opposite end thereof for connection with an external circuit;
• a movable contact carrier support comprising a shaped metal bar having a pair of spaced parallel posts extending from one end;
• a movable contact carrier comprising a contact end and a pivot end and having a movable contact affixed at said conatct end and a pivot pin within said pivot end, said pivot end of said movable contact carrier being movably retained between said spaced parallel posts;
• an operating mechanism connected with said movable contact carrier to lift said movable contact away from said stationary contact and interrupt circuit current through said stationary and movable contacts;
• means for sensing circuit current through said contacts and articulating said operating mechanism when said circuit current reaches a predetermined threshold;
• and
• spring clip retainer means arranged in press-fit relation around said spaced parallel posts and said movable contact carrier pivot end to hold said movable contact carrier pivot end in electrical contact with said spaced parallel posts, said spring clip retainer means comprising a U-shaped flat metal strip terminating in a pair of spaced arms which are connected at one end by a bight portion, said spaced arms being co-planar with each other and with said bight portion.