IT1029033B - Overcurrent protection current limiting device - has automatic current limiting cct. breaker with magnetic trip coacting with contact arm - Google Patents
Overcurrent protection current limiting device - has automatic current limiting cct. breaker with magnetic trip coacting with contact armInfo
- Publication number
- IT1029033B IT1029033B IT4151475A IT4151475A IT1029033B IT 1029033 B IT1029033 B IT 1029033B IT 4151475 A IT4151475 A IT 4151475A IT 4151475 A IT4151475 A IT 4151475A IT 1029033 B IT1029033 B IT 1029033B
- Authority
- IT
- Italy
- Prior art keywords
- current limiting
- contact arm
- magnetic trip
- breaker
- coacting
- Prior art date
Links
Landscapes
- Breakers (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The current limiting unit for protecting an electric load against overcurrents comprises currents limiting circuit breaker with a contact system including a moving contact arm and a magnetic trip. The latter has an open-ended slot that takes up part of the contact arm so that a magnetic flux is induced in the magnetic trip when preset excessive current flows in the contact arm, sufficient to effect a rapid contact breaking movement of the contact arm. A normally open short circuit path is provided in parallel with the load, this path being closed immediately after occurrence of an overcurrent of predetermined threshold value.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US43658874A | 1974-01-25 | 1974-01-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1029033B true IT1029033B (en) | 1979-03-10 |
Family
ID=23733029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT4151475A IT1029033B (en) | 1974-01-25 | 1975-01-24 | Overcurrent protection current limiting device - has automatic current limiting cct. breaker with magnetic trip coacting with contact arm |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS5619695B2 (en) |
BR (1) | BR7500429A (en) |
CA (1) | CA1031398A (en) |
ES (1) | ES434158A1 (en) |
IT (1) | IT1029033B (en) |
PL (1) | PL100506B1 (en) |
ZA (1) | ZA75231B (en) |
-
1975
- 1975-01-13 ZA ZA00750231A patent/ZA75231B/en unknown
- 1975-01-17 CA CA218,113A patent/CA1031398A/en not_active Expired
- 1975-01-22 BR BR7500429A patent/BR7500429A/en unknown
- 1975-01-24 IT IT4151475A patent/IT1029033B/en active
- 1975-01-25 ES ES434158A patent/ES434158A1/en not_active Expired
- 1975-01-25 PL PL17757475A patent/PL100506B1/en unknown
- 1975-01-25 JP JP1091775A patent/JPS5619695B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES434158A1 (en) | 1976-12-16 |
JPS5619695B2 (en) | 1981-05-09 |
ZA75231B (en) | 1976-01-28 |
BR7500429A (en) | 1975-11-04 |
CA1031398A (en) | 1978-05-16 |
PL100506B1 (en) | 1978-10-31 |
JPS50104351A (en) | 1975-08-18 |
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