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GB1260713A - Improvements in or relating to circuit-breakers - Google Patents

Improvements in or relating to circuit-breakers

Info

Publication number
GB1260713A
GB1260713A GB12598/69A GB1259869A GB1260713A GB 1260713 A GB1260713 A GB 1260713A GB 12598/69 A GB12598/69 A GB 12598/69A GB 1259869 A GB1259869 A GB 1259869A GB 1260713 A GB1260713 A GB 1260713A
Authority
GB
United Kingdom
Prior art keywords
trip bar
lever
engaging
parts
slot
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
GB12598/69A
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.)
Hundt and Weber GmbH
Original Assignee
Hundt and Weber GmbH
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 Hundt and Weber GmbH filed Critical Hundt and Weber GmbH
Publication of GB1260713A publication Critical patent/GB1260713A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
    • 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
    • H01H73/48—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 both electrothermal and electromagnetic automatic release
    • H01H73/50—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 both electrothermal and electromagnetic automatic release reset by lever

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)

Abstract

1,260,713. Automatic circuit - breakers. HUNDT & WEBER G.m.b.H. 10 March, 1969 [8 March, 1968], No. 12598/69. Heading H1N. An automatic circuit-breaker having an operating mechanism 6, release member 9, trip bar 18, and a pivotable intermediate latch lever 13 engaging the trip bar 18 and release member 9, is characterized by the trip bar 18 comprising two relatively adjustable and pivotable parts 21, 22, Fig. 3, or Fig. 5, and the intermediate latch lever 13 and trip bar 18 being mounted on the same support plates 10 as the operating mechanism 6. Tripping of the multipole circuit-breaker is by three bi-metal strips 39 engaging respective adjusting screws 31 on the trip bar 18, or by armatures of electromagnets 40 engaging respective arms 33 of trip bar 18, or by an inductive immediate switch-off. A release mechanism (not shown) has a lever 35 engaging an arm 34 of the trip bar 18 for additional tripping, or manual actuation is effected via an actuating button or lever (not shown) extending through the switch cover 36 and engaging an abutment 32 of the trip bar 18. The relative inclination of the trip bar parts 21, 22, is adjustable via a lever 24, pivoted at 23 to bear on a wedge-shaped support strip 26 on part 22, which is biased into engagement with the lever 24 by springs 29 arranged on pins 27 and also biasing the parts 21, 22, together. The current setting is visible on a scale 41 seen through a transparent cover-plate 38 which is removable to adjust the setting of lever 24 via its slotted head 25. Alternatively, a rotatable adjusting disc 47 formed with a slot 50 adjusts the inclination between the trip bar parts and the point of engagement between a wedge-shaped support strip 45 on the upper part and a lever 43 integral with the lower part and having an adjusting screw 44 engaging strip 45. Release member 9 has a pin 11 engageable in a slot 12 of latch lever 13, and the slot 12 is formed with an inclined bearing edge 53, 54, 55, Fig. 2 (not shown).
GB12598/69A 1968-03-08 1969-03-10 Improvements in or relating to circuit-breakers Expired GB1260713A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH0065535 1968-03-08

Publications (1)

Publication Number Publication Date
GB1260713A true GB1260713A (en) 1972-01-19

Family

ID=7163213

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12598/69A Expired GB1260713A (en) 1968-03-08 1969-03-10 Improvements in or relating to circuit-breakers

Country Status (4)

Country Link
US (1) US3602674A (en)
DE (1) DE1638043A1 (en)
FR (1) FR2003478A1 (en)
GB (1) GB1260713A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5431883Y2 (en) * 1975-01-23 1979-10-04
US4030060A (en) * 1976-02-26 1977-06-14 Westinghouse Electric Corporation Thermally adjustable circuit breaker
JPS5630127Y2 (en) * 1976-10-01 1981-07-17
US4625190A (en) * 1985-03-04 1986-11-25 Westinghouse Electric Corp. Remotely controlled solenoid operated circuit breaker
DE3812934A1 (en) * 1988-04-19 1989-11-02 Sursum Elektrizitaetsgesellsch MULTI-PHASE CIRCUIT BREAKER
EP1995754B1 (en) * 2007-05-23 2013-09-04 Abb Ag Electric installation switching device

Also Published As

Publication number Publication date
DE1638043A1 (en) 1972-01-05
FR2003478A1 (en) 1969-11-07
US3602674A (en) 1971-08-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees