(19)

(11)

EP 2 553 704 A1

(12)

(43) Date of publication: 06.02.2013 Bulletin 2013/06 (21) Application number: 11761992.4 (22) Date of filing: 29.03.2011

(51) International Patent Classification (IPC):  H01H 71/14(2006.01) (86) International application number: PCT/CN2011/072244 (87) International publication number: WO 2011/120418 (06.10.2011 Gazette 2011/40)

(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 (30) Priority: 30.03.2010 CN 201020146582 U (71) Applicant: ABB LV Installation Materials Co. Ltd., Beijing Beijing 100176 (CN)	(72) Inventor: WANG, Nong Beijing 100093 (CN) (74) Representative: Bockhorni & Kollegen  Elsenheimerstraße 49 80687 München 80687 München (DE)