Global Patent Index - EP 0978858 A2

EP 0978858 A2 2000-02-09 - Circuit breaker

Title (en)

Circuit breaker

Title (de)

Schutzschalter

Title (fr)

Disjoncteur

Publication

EP 0978858 A2 (EN)

Application

EP 99305863 A

Priority

JP 22009498 A

Abstract (en)

It is an object of the present invention to provide a circuit breaker excellent in safety by electrically insulating the trip unit from the main circuit, and capable of performing a proper wiping of the movable contact carrier, resulting in reduction of electrical resistance at the contacts. Further, a circuit breaker excellent in workability in assembling processes is also provided. In the circuit breaker of the present invention, a housing means (22) contains a main circuit (100) including a power supply side stationary contact carrier (1) with a stationary contact (2), a movable contact carrier (4) with a power supply side movable contact (3) and a load side movable contact (5), and a load side stationary contact carrier (7) with a load side stationary contact (6). The housing means is made of insulating material and disposed in the casing (40) also made of insulating material. The circuit breaker includes a make-and-break mechanism (30), a tripping mechanism (50). The tripping mechanism (50) is unitedly connected to the load side stationary contact carrier (7) and to the load side terminal (7c) therebetween. The tripping means (50) includes a converting mechanism (51) for converting electromagnetic force to mechanical force for tripping, which is supported on the housing means (22) and is electrically insulated from the main circuit (100). The make-and-break mechanism (30) is mounted on the housing means (22) and is electrically insulated from the main circuit (100). <IMAGE>

IPC 1-7 (main, further and additional classification)

H01H 71/02; H01H 71/24; H01H 73/04

IPC 8 full level (invention and additional information)

H01H 73/38 (2006.01); H01H 1/18 (2006.01); H01H 73/04 (2006.01); H01H 83/02 (2006.01); H01H 9/02 (2006.01); H01H 9/34 (2006.01); H01H 71/02 (2006.01); H01H 71/24 (2006.01); H01H 77/10 (2006.01)

CPC (invention and additional information)

H01H 73/045 (2013.01); H01H 1/18 (2013.01); H01H 1/2016 (2013.01); H01H 1/205 (2013.01); H01H 1/2058 (2013.01); H01H 9/0264 (2013.01); H01H 9/342 (2013.01); H01H 71/02 (2013.01); H01H 71/24 (2013.01); H01H 71/2472 (2013.01); H01H 77/104 (2013.01)

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

EP 0978858 A2 20000209; EP 0978858 A3 20001025; EP 0978858 B1 20060412; DE 69930795 D1 20060524; DE 69930795 T2 20061130; EP 1600988 A2 20051130; EP 1600988 A3 20060823; JP 2000057930 A 20000225; JP 3721266 B2 20051130

INPADOC legal status


2009-08-31 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2005-11-09 [RIN1] INVENTOR (CORRECTION)

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- Inventor name: YAMADA, YUKIHIDE

2005-11-09 [RIN1] INVENTOR (CORRECTION)

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- Inventor name: SEKIGUCHI, TOSHIHIRO

2005-11-09 [RIN1] INVENTOR (CORRECTION)

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- Inventor name: AIHARA, KAZUYA

2005-11-09 [RIN1] INVENTOR (CORRECTION)

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- Inventor name: SATO, EIETSU

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