Global Patent Index - EP 1229566 B1

EP 1229566 B1 20070711 - CIRCUIT BREAKER

Title (en)

CIRCUIT BREAKER

Title (de)

SCHUTZSCHALTER

Title (fr)

DISJONCTEUR

Publication

EP 1229566 B1 20070711 (EN)

Application

EP 00953482 A 20000818

Priority

JP 0005526 W 20000818

Abstract (en)

[origin: EP1229566A1] The invention has an object of obtaining a circuit breaker comprising a switching mechanism provided with a lubricant superior in heat resistance and oxidation resistance, and capable of being operated stably for a long time. A circuit breaker according to the invention comprises: a switching mechanism (A) accommodated in an insulating case (1) for connecting and disconnecting a movable contact (3) to and from a fixed contact (2); and a trip mechanism (C) provided with an engaging section (B) for engaging with the switching mechanism (A), and disengaging the engaging section (B) upon detecting any excess current on any electric pathway in the circuit so that the movable contact (3) is separated from the fixed contact (2) ; in which a part of the switching mechanism (A) consists of a material containing iron or iron compound, and sliding portion of the material containing iron or iron compound is provided with a lubricating oil composed of 1 to 5 wt% molybdenum disulfide added to a phenylether oil to which an antioxidant is added. <IMAGE>

IPC 8 full level

H01H 71/10 (2006.01); C10M 105/18 (2006.01); C10M 139/00 (2006.01); C10M 169/04 (2006.01); F16N 15/00 (2006.01); H01H 3/62 (2006.01)

CPC (source: EP)

C10M 105/18 (2013.01); C10M 125/22 (2013.01); C10M 169/04 (2013.01); H01H 3/62 (2013.01); C10M 2201/065 (2013.01); C10M 2201/066 (2013.01); C10M 2201/084 (2013.01); C10M 2207/04 (2013.01); C10M 2207/0406 (2013.01); C10N 2040/16 (2013.01); C10N 2040/17 (2020.05)

Designated contracting state (EPC)

DE GB

DOCDB simple family (publication)

EP 1229566 A1 20020807; EP 1229566 A4 20060322; EP 1229566 B1 20070711; CN 1233010 C 20051221; CN 1379911 A 20021113; DE 60035521 D1 20070823; DE 60035521 T2 20080313; JP 4445197 B2 20100407; TW 464895 B 20011121; WO 0217343 A1 20020228

DOCDB simple family (application)

EP 00953482 A 20000818; CN 00814317 A 20000818; DE 60035521 T 20000818; JP 0005526 W 20000818; JP 2002521318 A 20000818; TW 89117343 A 20000828