Global Patent Index - EP 0222684 B1

EP 0222684 B1 19900117 - CONTACT ARRANGEMENT FOR LOW-VOLTAGE CIRCUIT BREAKERS WITH MAIN CONTACTS AND ARCING CONTACTS

Title (en)

CONTACT ARRANGEMENT FOR LOW-VOLTAGE CIRCUIT BREAKERS WITH MAIN CONTACTS AND ARCING CONTACTS

Publication

EP 0222684 B1 19900117 (DE)

Application

EP 86730160 A 19861016

Priority

DE 3539673 A 19851106

Abstract (en)

[origin: US4720613A] A contact arrangement for low-voltage circuit breakers comprises a fixed and movable main contacts and fixed and movable burn-off contacts. With the burn-off contacts, arcing horns as well as an arc quenching chamber are associated. Upon heavy stress of the contact arrangement, partial arcs occurring at the main contacts are taken over by arc pieces and conducted to the arcing horns. Also in case of a larger number of main contacts, a relatively narrow arc quenching chamber can be used.

IPC 1-7

H01H 9/44

IPC 8 full level

H01H 33/18 (2006.01); H01H 9/44 (2006.01); H01H 9/46 (2006.01); H01H 33/02 (2006.01); H01H 33/12 (2006.01); H01H 33/42 (2006.01)

CPC (source: EP US)

H01H 9/446 (2013.01 - EP US); H01H 9/46 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB IT SE

DOCDB simple family (publication)

EP 0222684 A1 19870520; EP 0222684 B1 19900117; DE 3539673 A1 19870507; DE 3668394 D1 19900222; JP 2606798 B2 19970507; JP S62108418 A 19870519; US 4720613 A 19880119

DOCDB simple family (application)

EP 86730160 A 19861016; DE 3539673 A 19851106; DE 3668394 T 19861016; JP 26258386 A 19861104; US 92272986 A 19861024