Abstract: A circuit breaker assembly including a first and second circuit breakers each having toggle switch assemblies movable between ON and OFF positions. The toggle switch assemblies have connectors coupled thereto for preventing both circuit breakers from being in the ON position at the same time.

Abstract: A circuit breaker assembly including a first and second circuit breakers each having toggle switch assemblies movable between ON and OFF positions. The toggle switch assemblies have connectors coupled thereto for preventing both circuit breakers from being in the ON position at the same time.

Abstract: A ferromagnetic structure for use in a circuit interruption mechanism, the, ferromagnetic structure has a first ferromagnetic layer having a lower surface and an upper surface, a second ferromagnetic layer having a lower surface and an upper surface, at least one ferromagnetic layer being positioned within the first and second ferromagnetic layers and having a lower surface and an upper surface, at least one recess in the lower surfaces of the ferromagnetic layers; and at least one protrusion in the upper surfaces of the ferromagnetic layers, the protrusions are received into the recesses.

Abstract: A circuit breaker assembly including a first and second circuit breakers each having toggle switch assemblies movable between ON and OFF positions. The toggle switch assemblies have connectors coupled thereto for preventing both circuit breakers from being in the ON position at the same time.

Abstract: A circuit breaker assembly including first and second circuit breakers each having toggle switch assemblies movable between ON and OFF positions. The toggle switch assemblies have connectors coupled thereto for preventing both circuit breakers from being in the ON position at the same time.

Abstract: A saddle assembly (10) for a circuit breaker comprising a saddle base (22), at least one stab terminal (14) and two resilient tabs (50, 52) in facing alignment for releasably securing the at least one stab terminal (14) to the saddle base (22), wherein the engagement of the two resilient tabs (50, 52) with the stab terminal (14) releasably secures the at least one stab terminal (14) to the saddle base (22).

Abstract: A magnetic flux concentrator trip unit for molded case circuit breakers in the form of a flux concentrator magnet arranged round the load strap at one end of the circuit breaker is positioned in magnetic proximity to an armature. Current transport through the load strap generates attractive magnetic forces to articulate the circuit breaker operating mechanism when the current exceeds a threshold value.

Abstract: Low voltage electric switchgear equipment includes a central processor unit electrically interconnected with electronic main and branch circuit interrupters within the same enclosure and used within a multi-phase power distribution circuit. A terminal connector block is connected by cable with each of the electronic trip units within the branch circuit interrupters to provide communications between the branch circuit interrupters and the main circuit interrupter for continuously updating the status of the branch circuit interrupters and their associated electrical equipment. Strain relief is provided to the cable connecting between the terminal connector block and the branch circuit interrupter to prevent damage to the electrical components within the electronic trip unit that are internally connected with the cable.

Abstract: Molded plastic bus covers are attached to the ends of a pair of molded case circuit breakers to isolate the circuit breakers from an electrical enclosure as well as to isolate between the circuit breakers themselves when connected within the enclosure in a double-branch configuration. Molded plastic lug covers are attached to the opposite ends of a molded case circuit breaker when the circuit breaker lugs are connected to power distribution cables to electrically isolate the power cables and the circuit breaker lugs.

Abstract: A molded case circuit breaker having a pair of movable contact arms arranged within a single pole utilizes a shunt clip between the movable contact arms to insure electrical continuity between the contact arms and the support base during intense short circuit interruption. A compression spring-driven camming arrangement insures good electrical connection between the circuit breaker contacts under steady quiescent operating conditions while preventing reclosing of the contacts during short circuit interruption.