Protective switching device
US5594399A · kind A · utility
4Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1995 |
| Grant date | Jan 14, 1997 |
| Priority date | — |
| Expiry date | Feb 24, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2011/0093
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A protective switching device equipped with power poles, for which mobile contacts are supported on a contact support, a protection assembly with magnetic and/or temperature tripping capable of detecting overloads or overcurrents on each pole current path and a lock operated by a manual control knob. The lock includes a mechanism to control direct opening of power contacts of a circuit breaker or similar device in a manual control, or opening of an auxiliary contact that interrupts the current in the coil in the control electromagnet of a contactor-circuit breaker or similar device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.