EP 0801408 A3 20000726 - Overload switching device for electrical apparatus
Title (en)
Overload switching device for electrical apparatus
Title (de)
Überlastschalteinrichtung für elektrische Geräte
Title (fr)
Dispositif de commutation de surcharge pour appareils électriques
Publication
Application
Priority
DE 19610185 A 19960315
Abstract (en)
[origin: EP0801408A2] The thermal overload device has two switching stages each with fixed contacts [10,11] and a bridging contact [14] held by a spring element [15]. In line with the switching stages is a bimetallic element [12] that is heated by a unit [18] coupled into the electrical circuit. At a threshold temperature the bimetallic element inverts and displaces a plunger [16] to open the contacts. The device has a push button cap [26] inside of which is an indicator bulb [19] that has a electorial connections to one pair of contacts [10.11] that connect to the load. The switch may also be manually operated by pressing the push button.
IPC 1-7
IPC 8 full level
H01H 37/54 (2006.01); H01H 37/70 (2006.01); H01H 1/50 (2006.01); H01H 9/16 (2006.01)
CPC (source: EP)
H01H 37/5409 (2013.01); H01H 1/504 (2013.01); H01H 9/161 (2013.01)
Citation (search report)
- [YA] CH 244173 A 19460831 - SINGER MFG CO [US]
- [YDA] DE 3802647 A1 19890803 - LECTRA TRADING AG [CH]
- [A] DE 3701240 A1 19870806 - KIENZLER AG G [CH]
- [A] US 3258567 A 19660628 - COLAVECCHIO ROBERT J
- [A] DE 2625120 A1 19771208 - HOFSASS P
- [A] US 2839638 A 19580617 - DAVID EPSTEIN HENRY
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0801408 A2 19971015; EP 0801408 A3 20000726; EP 0801408 B1 20041229; AT E286301 T1 20050115; DE 19610185 C1 19970410; DE 59712140 D1 20050203
DOCDB simple family (application)
EP 97103619 A 19970305; AT 97103619 T 19970305; DE 19610185 A 19960315; DE 59712140 T 19970305