ES429386A1 - Circuit breaker assembly with improved tripping mechanism - Google Patents

Abstract

Improvements introduced into a trip mechanism for a circuit breaker assembly comprising at least four circuit breakers arranged directly side by side, each of the cooperative contacts circuit breakers comprising a contact actuation mechanism including a releasable element and a trigger mechanism that includes a latch that locks the releasable element in a normal armed position thereof and that releases the releasable element in response to a predetermined overload condition, thereby effecting movement thereof resulting in a contact opening operation of the contact actuation mechanism; the contact actuation mechanism including a trip lever actuated by the releasable element and which acts on the latch in such a way that the movement of the releasable element effects the trip movement of the trip lever, and the trip movement of The trigger lever performs a latch release motion, characterized in that the trigger levers of at least two contiguous circuit breakers are interconnected for simultaneous movement of them in unison and in that the interconnected trigger levers have open-ended hubs aligned axial lines extending therethrough, a coupling rod extending through the axial openings and having the tripping levers of the remaining circuit breakers attached thereto, the coupling rod being freely rotatable in axial openings, independent of interconnected trigger levers. (Machine-translation by Google Translate, not legally binding)