Molded case circuit breaker auxiliary power supply plug
US5446386A · kind A · utility
6Cited by
14References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1993 |
| Grant date | Aug 29, 1995 |
| Priority date | — |
| Expiry date | Feb 26, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/044
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A molded case circuit breaker containing a digital trip unit is field-tested for both electronically-induced as well as mechanically-induced test conditions by means of a portable test kit unit. The test kit circuit components are contained within a miniature test plug that temporarily connects with the circuit breaker trip unit by insertion within the rating plug receptacle formed within the circuit breaker cover. A compact power supply plug is received within the test plug to provide operating power to the circuit breaker trip unit components and associated accessories.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.