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(11)

EP 2 791 958 A1

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(43) Date of publication: 22.10.2014 Bulletin 2014/43 (21) Application number: 12798769.1 (22) Date of filing: 12.12.2012

(51) International Patent Classification (IPC):  H01H 33/90(2006.01) H01H 33/22(2006.01) H01H 33/95(2006.01) H01H 33/91(2006.01) (86) International application number: PCT/EP2012/075214 (87) International publication number: WO 2013/087688 (20.06.2013 Gazette 2013/25)

(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: 13.12.2011 WO PCT/EP2011/072553 13.12.2011 WO PCT/EP2011/072552 (71) Applicant: ABB Technology AG 8050 Zürich (CH)

(72) Inventors: PISU, Franceso CH-5413 Birmenstorf (CH) GALINDO-LOZANO, Francia CH-8050 Zürich (CH) MANTILLA, Javier CH-5400 Baden (CH) BUERGLER, Mathias-Dominic CH-5405 Baden-Dättwil (CH) GARIBOLDI, Nicola CH-5415 Nussbaumen (CH) COSSALTER, Oliver CH-5442 Fislisbach (CH) STOLLER, Patrick CH-8050 Zürich (CH) GROB, Stephan CH-5400 Baden (CH) KOTILAINEN, Sami CH-5443 Niederrohrdorf (CH) (74) Representative: ABB Patent Attorneys  C/o ABB Schweiz AG Intellectual Property (CH-LC/IP) Brown Boveri Strasse 6 5400 Baden 5400 Baden (CH)