FR854878A - Automatic switch for three-phase current - Google Patents
Automatic switch for three-phase currentInfo
- Publication number
- FR854878A FR854878A FR854878DA FR854878A FR 854878 A FR854878 A FR 854878A FR 854878D A FR854878D A FR 854878DA FR 854878 A FR854878 A FR 854878A
- Authority
- FR
- France
- Prior art keywords
- phase current
- automatic switch
- automatic
- switch
- phase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/22—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release
- H01H73/28—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release reset by rotatable knob or wheel
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT854878X | 1938-06-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR854878A true FR854878A (en) | 1940-04-26 |
Family
ID=11327074
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR854878D Expired FR854878A (en) | 1938-06-11 | 1939-05-17 | Automatic switch for three-phase current |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR854878A (en) |
-
1939
- 1939-05-17 FR FR854878D patent/FR854878A/en not_active Expired
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