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
Application
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
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