(19)

(11)

EP 0 600 072 A1

(12)

(43) Date of publication: 08.06.1994 Bulletin 1994/23 (21) Application number: 93915404.0 (22) Date of filing: 17.06.1993

(51) International Patent Classification (IPC):  H01H 33/ 59( . ) H01H 83/ 02( . ) H02H 7/ 20( . ) H01H 73/ 00( . ) H02H 1/ 06( . ) H02H 3/ 05( . ) (86) International application number: PCT/US1993/005836 (87) International publication number: WO 1994/000862 (06.01.1994 Gazette 1994/02)

(84) Designated Contracting States: DE FR GB IE (30) Priority: 19.06.1992 US 19920901438 (71) Applicant: SQUARE D COMPANY Palatine, Illinois 60067 (US)	(72) Inventors: BAACK, Jerry, R. Cedar Rapids, IA 52405 (US) JENSEN, Scott, R. Cedar Rapids, IA 52405 (US) (74) Representative: Sorrell, Terence Gordon  Fitzpatricks, Cardinal Court, 23, Thomas More Street London E1 9YY London E1 9YY (GB)