Mitsubishi Denki Kabushiki Kaisha

Hideshi Takashita

Takayoshi Ishikawa

Kiyoshi Eguchi

Shigemi Tamaru

Yasushi Genba

A terminal assembly for a circuit interrupter has a plurality of pairs of metallic spaced parallel flat load terminals with the flat surfaces of the terminals of a pair opposed to each other, the pairs of terminals being positioned side-by-side with spaces therebetween, there being one pair for each phase of the interrupter. Two side walls of insulating material are provided between each side-by-side pair of terminals and abutting each other, and two end walls of insulating material are provided on the outside of the outermost pairs of the terminals. The side walls and end walls have grooves therein holding the side edges of the terminals, the terminals projecting outwardly from between the side walls and end walls. Bolts extend through aligned bolt receiving holes. A plurality of projections are provided at spaced intervals around the holes on the opposite sides of the walls of the grooves, and there are recesses in the walls between adjacent projections, the projections on one abutting wall engaging in the recesses around the corresponding aligned holes of the other abutting wall. A pair of metallic plates are provided over the outer surface of the end walls, the projections on the end walls abutting the plates and spacing the walls and the plates.

Terminal assembly for circuit interrupter

The disclosed terminal assembly for a circuit interrupter comprises three pairs of opposite source and load terminals, each pair being carried on both lateral sides by a pair of first and second side plates by having each lateral side and a recess on that side engaging an associated groove and a raised portion on the front surface of each side plate respectively and connected to adjacent pairs of the opposite source and load terminals through different pairs of the first and second side plates interconnected back to back. All the terminals and side plates are assembled into a unitary structure between two metallic plates by means of bolts and nuts. A supporting strut includes two notches fitted onto the lateral surfaces of end portions of each pair of the opposite source and load terminals and is disposed on each of the side plates. The outermost strut is connected to the adjacent metallic plate trough a lateral locking member and each pair of the intermediate struts are interconnected back to back and connected to the interconnected first and second plates through an intermediate locking member.

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Fukuyama, Japan

Hideshi Takashita