Circuit breaker mechanism tripping cam

An electrical circuit breaker comprising:

• a circuit breaker housing;
• a first electrical contact fixed within said housing;
• a contact arm rotatably secured within said housing, said contact arm having a second electrical contact secured to an end thereof;
• an operating mechanism secured within said housing, said operating mechanism including:
• a lower link operatively connected to the contact arm;
• an upper link including first and second legs extending from a central portion, said first leg pivotally secured to said lower link, said second leg including a cam surface formed thereon;
• a roller in intimate contact with said cam surface, said cam surface being configured such that movement of said upper link relative to said roller causes said upper link to pivot about said central portion;
• and
• wherein pivoting of said upper link about said central portion moves said lower link causing said contact arm to rotate and move said second contact away from said first contact.

An electrical circuit breaker comprising:

• a circuit breaker housing;
• a pair of electrical contacts disposed within said housing;
• an operating mechanism secured within said housing, said operating mechanism including:
• an operating spring configured to provide a force for separating the electrical contacts when the operating mechanism is tripped;
• an operating handle extending from a slot formed in the circuit breaker housing for resetting the operating mechanism after the operating mechanism has been tripped, said operating handle, said operating handle having a void disposed therein, said spring having an end secured to said operating handle within said void.