NEUTRAL DEVICE FOR CIRCUIT BREAKER - MATSUSHITA ELECTRIC WORKS,LTD.

Title:

NEUTRAL DEVICE FOR CIRCUIT BREAKER

Document Type and Number:

Japanese Patent JP3344045

Kind Code:

B2

Abstract:

PURPOSE: To improve contact reliability by dividing a current in fixed and movable contactors into two parts, so as to weaken electromagentic repulsive force of each contractor.
CONSTITUTION: A neutral movable contactor 92 is formed almost in a U shape by one piece 92A coming into contact with and separating from the first neutral fixed contactor 90, the other piece 92B coming into contact with and separating from the second neutral fixed contractor 91 and a connecting piece 92C for connecting these one piece 92A and the other piece 92B. When a neutral handle 94, in a condition that it is brought into contact with a point end of the other piece 92B of the contactor 92, is operated to turn in a base end direction of the other piece 92B, a point end of the one piece 92A of the movable contractor 92 is rotated in the same direction to a direction of rotating the handle 94 with the base end of the other piece 92B serving as the center, to separate from the fixed contactor 90. Accordingly, after the handle 94 is brought into contact with a point end of the other piece 92B of the contractor 92, small force for turning is only required to improved operability.

Inventors:

Hideo Hisamoto
Ken Inoue
Mizuno Hatsuo

Application Number:

JP31985593A

Publication Date:

November 11, 2002

Filing Date:

December 20, 1993

Export Citation:

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