(19)

(11)

EP 1 258 020 A1

(12)

(43) Date of publication: 20.11.2002 Bulletin 2002/47 (21) Application number: 00985145.2 (22) Date of filing: 30.11.2000

(51) International Patent Classification (IPC)7: H01H 71/32, H01H 7/14 (86) International application number: PCT/EP0012/312 (87) International publication number: WO 0104/8780 (05.07.2001 Gazette 2001/27)

(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: 27.12.1999 IT MI992719 (71) Applicant: ABB Service S.r.l. 20135 Milano (IT)	(72) Inventor: ASCARI, Claudio I-20154 Milano (IT) (74) Representative: Giavarini, Francesco  GIAVARINI E ASSOCIATI S.R.L.Via XX Settembre, 58/A 24122 Bergamo 24122 Bergamo (IT)