Title:
INSERTION TYPE CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2003/098652
Kind Code:
A1
Abstract:
An insertion type circuit breaker comprises a trip rod (21) which actuates an on&sol off contactor for opening and closing a circuit carrying a load current and a trip mechanism for opening this on&sol off contactor, a lever (22) which acts on the trip rod (21) when a breaker main body (1) is inserted into a mount base (7) or removed from the mount base (7), an elastic member (23) which energizes this lever (22), and a lock mechanism part (30) which locks the lever (22) by resisting the energization force of the elastic member (23) when the breaker main body (1) is out of the mount base (7). Thus, this circuit breaker facilitates on&sol off check even when the breaker main body (1) is out of the mount base (7) and makes intrinsic trip actions when the breaker main body (1) is inside the mount base (7) with the trip rod (21) fixed, and when out of the mount base (7).
Inventors:
KAWAKAMI KANEHIRO
ISHIKAWA AKIRA
ISHIKAWA AKIRA
Application Number:
PCT/JP2002/004943
Publication Date:
November 27, 2003
Filing Date:
May 22, 2002
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H01H71/12; H01H73/08; (IPC1-7): H01H73/08; H01H73/00
Foreign References:
| EP0567415A1 | 1993-10-27 | |||
| JP2504683B2 | 1996-06-05 | |||
| EP1148530A1 | 2001-10-24 | |||
| JPH08185782A | 1996-07-16 | |||
| JPH1196861A | 1999-04-09 |
Other References:
See also references of EP 1507275A4
None
None
Attorney, Agent or Firm:
Miyata, Kaneo c/o Mitsubishi Denki Kabushiki Kaisha (2-3 Marunouchi 2-Chom, Chiyoda-ku Tokyo, JP)
Download PDF: