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(11)

EP 2 936 527 A1

(12)

(43) Date of publication: 28.10.2015 Bulletin 2015/44 (21) Application number: 12812868.3 (22) Date of filing: 21.12.2012

(51) International Patent Classification (IPC):  H01H 1/58(2006.01) H01H 1/14(2006.01) H01H 1/42(2006.01) H01H 31/32(2006.01) H01H 33/12(2006.01) H01H 1/38(2006.01) H01H 31/28(2006.01) H01H 33/666(2006.01) (86) International application number: PCT/EP2012/005345 (87) International publication number: WO 2014/094806 (26.06.2014 Gazette 2014/26)

(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 (71) Applicant: ABB Technology AG 8050 Zürich (CH)	(72) Inventors: SAUER, Manfred 40885 Ratingen (DE) HYRENBACH, Maik 40878 Ratingen (DE) (74) Representative: Schmidt, Karl Michael  ABB AG GF-IP Oberhausener Strasse 33 40472 Ratingen 40472 Ratingen (DE)