GB1414072A - Fused circuit greaker - Google Patents

Fused circuit greaker

Info

Publication number
GB1414072A
GB1414072A GB800073A GB800073A GB1414072A GB 1414072 A GB1414072 A GB 1414072A GB 800073 A GB800073 A GB 800073A GB 800073 A GB800073 A GB 800073A GB 1414072 A GB1414072 A GB 1414072A
Authority
GB
United Kingdom
Prior art keywords
trip bar
circuit breaker
fuse
plunger
tripping means
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
GB800073A
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1414072A publication Critical patent/GB1414072A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/30—Means for indicating condition of fuse structurally associated with the fuse
    • H01H85/303—Movable indicating elements
    • H01H85/306—Movable indicating elements acting on an auxiliary switch or contact
    • 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
    • H01H71/122—Automatic release mechanisms with or without manual release actuated by blowing of a fuse

Abstract

1414072 Circuit breaker WESTINGHOUSE ELECTRIC CORP 19 Feb 1973 [8 March 1972] 8000/73 Heading H1N A multipole circuit breaker having a trip bar 119, common to all poles to automatically open the switch contacts, is provided with a separate fuse 195 for each pole supported in the circuit breaker housing but without the trip bar housing 110. Each fuse is connected in series with the contacts 21, 27 of its associated pole, and comprises a plunger 207 limited in movement by stop 213 and carrying an actuator 209 which in operation of the fuse to open the circuit pushes a spring biased plunger 217 into contact with the trip bar 119 to rotate it about pivot 122 thus releasing latch 61 to trip the circuit breaker. The plunger remains extended after operation so that the switch cannot be reset without replacement of the fuse. The circuit breaker is also provided with thermal tripping means comprising a bimetallic strip 159 deflecting the trip bar 119 via adjustable screw 165. There is also a magnetic tripping means comprising a laminated U-shaped member 126 through the legs of which main conductor 171 passes, there being a pivoted spring-biased movable armature 131 connected to the trip bar 119 via a rod 135 with a head 137. Adjustment of the magnetic tripping means is by knob 143. All openings in the trip bar housing are small enough to prevent access to parts inside it.
GB800073A 1972-03-08 1973-02-19 Fused circuit greaker Expired GB1414072A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US23279472A 1972-03-08 1972-03-08

Publications (1)

Publication Number Publication Date
GB1414072A true GB1414072A (en) 1975-11-19

Family

ID=22874613

Family Applications (1)

Application Number Title Priority Date Filing Date
GB800073A Expired GB1414072A (en) 1972-03-08 1973-02-19 Fused circuit greaker

Country Status (6)

Country Link
US (1) US3718878A (en)
JP (1) JPS5340669Y2 (en)
BR (1) BR7301676D0 (en)
CA (1) CA967203A (en)
GB (1) GB1414072A (en)
ZA (1) ZA731151B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2202361B1 (en) * 1972-10-10 1976-01-30 Unelec Fr
US3829807A (en) * 1973-03-22 1974-08-13 Ite Imperial Corp Contact holder with adjustably mounted switch
US10283309B2 (en) * 2017-05-31 2019-05-07 Te Connectivity Corporation Fuse panel module with a movable fuse holder

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2939936A (en) * 1957-10-01 1960-06-07 Ite Circuit Breaker Ltd Separate housing for coordinated circuit breaker current limiting device
US3118991A (en) * 1961-01-26 1964-01-21 Ite Circuit Breaker Ltd Removable and replaceable auxiliary housing for circuit breaker containing trip unit and current limiting fuse
US3185792A (en) * 1961-05-24 1965-05-25 Gen Electric Circuit breaker trip mechanism
US3538475A (en) * 1966-12-20 1970-11-03 Westinghouse Electric Corp Circuit breaker with current limiting fuse means
US3638157A (en) * 1969-05-28 1972-01-25 Westinghouse Electric Corp Combination motor starter

Also Published As

Publication number Publication date
BR7301676D0 (en) 1974-07-11
ZA731151B (en) 1973-11-28
AU5246173A (en) 1974-08-22
US3718878A (en) 1973-02-27
JPS491855U (en) 1974-01-09
JPS5340669Y2 (en) 1978-10-02
CA967203A (en) 1975-05-06

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee