FR714047A - Three-phase thermal trip unit, for overcurrent switches - Google Patents

Three-phase thermal trip unit, for overcurrent switches

Info

Publication number
FR714047A
FR714047A FR714047DA FR714047A FR 714047 A FR714047 A FR 714047A FR 714047D A FR714047D A FR 714047DA FR 714047 A FR714047 A FR 714047A
Authority
FR
France
Prior art keywords
trip unit
thermal trip
phase thermal
overcurrent switches
overcurrent
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
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schiele & Bruchsaler Ind
Original Assignee
Schiele & Bruchsaler Ind
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schiele & Bruchsaler Ind filed Critical Schiele & Bruchsaler Ind
Application granted granted Critical
Publication of FR714047A publication Critical patent/FR714047A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
    • H01H83/223—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with bimetal elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element
    • H01H71/162—Electrothermal mechanisms with bimetal element with compensation for ambient temperature
FR714047D 1930-04-01 1931-03-30 Three-phase thermal trip unit, for overcurrent switches Expired FR714047A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE519464T 1930-04-01

Publications (1)

Publication Number Publication Date
FR714047A true FR714047A (en) 1931-11-06

Family

ID=34085409

Family Applications (1)

Application Number Title Priority Date Filing Date
FR714047D Expired FR714047A (en) 1930-04-01 1931-03-30 Three-phase thermal trip unit, for overcurrent switches

Country Status (4)

Country Link
DE (1) DE519464C (en)
FR (1) FR714047A (en)
GB (1) GB385937A (en)
NL (1) NL32695C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE744477C (en) * 1933-05-26 1944-01-17 Schiele Industriewerke Inhaber Multi-pole overcurrent release device
DE755789C (en) * 1937-08-20 1954-04-05 Schiele Industriewerke Inhaber Thermal trip device for switches in multi-phase alternating current circuits
DE877792C (en) * 1944-08-10 1953-05-26 Walther Dr Thoma Circuit breaker for multi-phase power consumers with extended protective properties
GB818561A (en) * 1955-01-18 1959-08-19 Dewhurst & Partner Ltd Improvements in or relating to devices for affording protection to electric circuits
DE102004004840B4 (en) * 2004-01-30 2006-05-11 Siemens Ag Protection switching device with residual current release

Also Published As

Publication number Publication date
GB385937A (en) 1933-01-05
NL32695C (en)
DE519464C (en) 1931-02-28

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