EP 0149061 B1 19870624 - VACUUM SWITCH FOR LOW TENSION, PARTICULARLY A LOW TENSION PROTECTOR
Title (en)
VACUUM SWITCH FOR LOW TENSION, PARTICULARLY A LOW TENSION PROTECTOR
Publication
Application
Priority
- DE 3343918 A 19831205
- DE 8334848 U 19831205
Abstract (en)
[origin: US4614850A] A vacuum switch for the low-voltage range, in particular, a low voltage contactor, comprising a vacuum switching tube having a switching chamber and a first contact rigidly arranged therein and a lead-in pin movable relative thereto having a second contact, wherein the vacuum switching tube has an insulating member which is surrounded on the vacuum side at least partially by shielding. The shielding is arranged as a concentric hollow cylinder and the insulating member comprises a ring shaped member, preferably of ceramic. The axial length of the shielding cylinder is at least 1.5 times that of the ring. A vacuum switch having a short insulating path thus can be constructed cost-effectively and which has the capability for a high number of switching cycles.
IPC 1-7
IPC 8 full level
H01H 33/66 (2006.01); H01H 33/662 (2006.01)
CPC (source: EP US)
H01H 33/66261 (2013.01 - EP US)
Citation (examination)
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 0149061 A1 19850724; EP 0149061 B1 19870624; DE 3343918 A1 19850613; DE 8334848 U1 19860507; JP S60138816 A 19850723; US 4614850 A 19860930
DOCDB simple family (application)
EP 84114144 A 19841122; DE 3343918 A 19831205; DE 8334848 U 19831205; JP 25731984 A 19841205; US 67682584 A 19841130