(19)

(11)

EP 1 399 940 A1

(12)

(43) Date of publication: 24.03.2004 Bulletin 2004/13 (21) Application number: 02747434.5 (22) Date of filing: 21.06.2002

(51) International Patent Classification (IPC)7: H01H 73/18 (86) International application number: PCT/EP2002/007041 (87) International publication number: WO 2003/001549 (03.01.2003 Gazette 2003/01)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 22.06.2001 IT MI20011326 (71) Applicant: ABB Service S.r.l. 20135 Milano (IT)	(72) Inventors: ANTONIAZZI, Alberto I-20080 Zibido San Giacomo (IT) RINCO, Franco I-20092 Cinisello Balsamo (IT) (74) Representative: Giavarini, Francesco et al ZANOLI & GIAVARINI S.r.l.Viale Bianca Maria, 35 20122 Milano 20122 Milano (IT)