Electromagnetic contactor is fitted with an electromagnet sensitive to over-currents, to cause the limitation and cut-off of excess currents
US4307358A · kind A · utility
15Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1978 |
| Grant date | Dec 22, 1981 |
| Priority date | — |
| Expiry date | Nov 7, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H71/2454
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electromagnetic contactor is fitted with an electromagnet sensitive to overcurrents, to cause the limitation and cut-off of excess currents. A movable contact bridge is controlled by a spring which holds it against the fixed contacts, and is struck by at least one component which is not connected to it, and which is positioned between it and the armature of the control electromagnet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.