(19)
(11) EP 2 028 670 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
25.08.2010 Bulletin 2010/34

(43) Date of publication A2:
25.02.2009 Bulletin 2009/09

(21) Application number: 08162665.7

(22) Date of filing: 20.08.2008
(51) International Patent Classification (IPC): 
H01H 3/30(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: 20.08.2007 KR 20070083504

(71) Applicant: LS Industrial Systems Co., Ltd
Gyeonggi-do 431-080 (KR)

(72) Inventors:
  • Lee, Sang Chul
    361-270, Chungcheongbuk-do (KR)
  • Ahn, Kil Young
    305-761, Daejeon (KR)

(74) Representative: Stein, Jan Anders Lennart et al
Groth & Co. KB P.O. Box 6107
102 32 Stockholm
102 32 Stockholm (SE)

   


(54) Spring charging device of air circuit breaker


(57) Disclosed is a spring charging device (100) of air circuit breaker mounted with at least one or more micro switches and a switch lever (140) for turning on/off the micro switches capable of compressing the spring (11) and notifying completion of the compression of the spring when the charging is completed, thereby enhancing the efficiency in operation of the air circuit breaker by a user (an operator).







Search report