(19)
(11) EP 2 107 588 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
29.12.2010 Bulletin 2010/52

(43) Date of publication A2:
07.10.2009 Bulletin 2009/41

(21) Application number: 08016768.7

(22) Date of filing: 24.09.2008
(51) International Patent Classification (IPC): 
H01H 71/52(2006.01)
H01H 11/00(2006.01)
 H01H 1/20(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA MK RS

(30) Priority: 31.03.2008 JP 2008090586

(71) Applicant: Mitsubishi Electric Corporation
Chiyoda-ku Tokyo 100-8310 (JP)

(72) Inventors:
  • Watanabe, Kazumasa
    Tokyo 100-8310 (JP)
  • Fushimi, Masahiro
    Tokyo 100-8310 (JP)

(74) Representative: HOFFMANN EITLE 
Patent- und Rechtsanwälte Arabellastraße 4
81925 München
81925 München (DE)

   


(54) Circuit breaker


(57) A circuit breaker is provided. The circuit breaker includes housing, a frame that is fixed to the housing, and a make and break mechanism. The housing is configured to comprise a double-break unit case having two pairs of the moving contact point and the stationary contact point or a member that is different from the double -break unit case. The frame has a first fixing portion for fixing the make and break mechanism to the double-break unit case and a second fixing portion for fixing the make and break mechanism to the housing in which the member is provided







Search report