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(11)

EP 3 161 845 A1

(12)

(43) Date of publication: 03.05.2017 Bulletin 2017/18 (21) Application number: 15731362.8 (22) Date of filing: 25.06.2015

(51) International Patent Classification (IPC):  H01H 31/00(2006.01) H01H 33/12(2006.01) (86) International application number: PCT/EP2015/064446 (87) International publication number: WO 2015/197785 (30.12.2015 Gazette 2015/52)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: MA (30) Priority: 26.06.2014 CN 201410300276 (71) Applicant: Siemens Aktiengesellschaft 80333 München (DE)	(72) Inventor: WANG, Hui Hangzhou 310020 (CN) (74) Representative: Patentanwaltskanzlei WILHELM & BECK  Prinzenstraße 13 80639 München 80639 München (DE)