EP0360366A3 - Moulded case for a low tension electrical power circuit breaker with reinforcement against overpressure - Google Patents

Moulded case for a low tension electrical power circuit breaker with reinforcement against overpressure Download PDF

Info

Publication number
EP0360366A3
EP0360366A3 EP19890250035 EP89250035A EP0360366A3 EP 0360366 A3 EP0360366 A3 EP 0360366A3 EP 19890250035 EP19890250035 EP 19890250035 EP 89250035 A EP89250035 A EP 89250035A EP 0360366 A3 EP0360366 A3 EP 0360366A3
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
housing parts
partition
electrical power
power circuit
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.)
Granted
Application number
EP19890250035
Other languages
German (de)
French (fr)
Other versions
EP0360366B1 (en
EP0360366A2 (en
Inventor
Clifford A. Buxton
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0360366A2 publication Critical patent/EP0360366A2/en
Publication of EP0360366A3 publication Critical patent/EP0360366A3/en
Application granted granted Critical
Publication of EP0360366B1 publication Critical patent/EP0360366B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/025—Constructional details of housings or casings not concerning the mounting or assembly of the different internal parts
    • H01H71/0257—Strength considerations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
    • H01H9/042—Explosion-proof cases

Abstract

Ein isolierendes Formstoffgehäuse (10) eines Niederspannungs-­ Leistungsschalters weist zwei Gehäuseteile (12,14) auf, die entlang einer Teilfuge (16) zusammengefügt sind. Gegen die starken Beanspruchungen aufgrund eines beim Schalten auftreten­ den inneren Überdruckes ist das Formstoffgehäuse (10) durch eine Trennwand (22) verstärkt, die zwischen die Gehäuseteile (12,14) entlang der Teilfuge (16) eingefügt ist. Die Trennwand besitzt Endstege (20) mit einem hinterschnittenen, insbesondere schwalbenschwanzförmigen Profil, das in entsprechenden Aus­ nehmungen (24,26) in den Berührungsflächen der Gehäuseteile (12,14) aufgenommen ist. Dadurch kann die Trennwand (22) Zug­ kräfte aufnehmen. Ferner wird eine Relativbewegung zwischen den Seitenwänden (28,30) der Gehäuseteile (12,14) verhindert. An insulating molded plastic housing (10) of a low voltage Circuit breaker has two housing parts (12, 14) that are joined together along a parting line (16). Against the heavy loads due to a shift the molded part housing (10) is through the internal overpressure a partition (22) reinforced between the housing parts (12, 14) is inserted along the parting line (16). The partition has end webs (20) with an undercut, in particular dovetail-shaped profile that in corresponding Aus recesses (24,26) in the contact surfaces of the housing parts (12.14) is included. This allows the partition (22) train absorb strength. Furthermore, a relative movement between the Side walls (28,30) of the housing parts (12,14) prevented.

EP89250035A 1988-09-19 1989-09-13 Moulded case for a low tension electrical power circuit breaker with reinforcement against overpressure Expired - Lifetime EP0360366B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US246470 1988-09-19
US07/246,470 US4899253A (en) 1988-09-19 1988-09-19 Molded case circuit breaker housing reinforcement

Publications (3)

Publication Number Publication Date
EP0360366A2 EP0360366A2 (en) 1990-03-28
EP0360366A3 true EP0360366A3 (en) 1991-11-06
EP0360366B1 EP0360366B1 (en) 1994-11-30

Family

ID=22930815

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89250035A Expired - Lifetime EP0360366B1 (en) 1988-09-19 1989-09-13 Moulded case for a low tension electrical power circuit breaker with reinforcement against overpressure

Country Status (6)

Country Link
US (1) US4899253A (en)
EP (1) EP0360366B1 (en)
JP (1) JPH02197022A (en)
CA (1) CA1331775C (en)
DE (1) DE58908683D1 (en)
ES (1) ES2064429T3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5189596A (en) * 1991-12-20 1993-02-23 Westinghouse Electric Corp. Transition for electrical apparatus
US6005207A (en) * 1997-09-23 1999-12-21 Siemens Energy & Automation, Inc. Multi-part circuit breaker housing
US8944070B2 (en) * 1999-04-07 2015-02-03 Intuitive Surgical Operations, Inc. Non-force reflecting method for providing tool force information to a user of a telesurgical system
DE19958945A1 (en) * 1999-11-26 2001-05-31 Siemens Ag Electrical switching device, such as low voltage (LV) circuit-breaker, with multi-part housing
DE10323094B3 (en) * 2003-05-16 2004-08-12 Siemens Ag Electrical power switch has switch shaft supported by bearings provided by one housing shell with fixings between housing shells provided by shaft bearing and second housing shell
US20230377822A1 (en) * 2022-05-20 2023-11-23 Rockwell Automation Technologies, Inc. Circuit breaker housing with two-stage structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2309032A1 (en) * 1975-04-21 1976-11-19 Mang Ets Gerard Compact, modular electric circuit breaker - has electromagnet and flat sub-assembly with moving and fixed contacts
EP0003736A1 (en) * 1978-01-19 1979-09-05 Siemens Aktiengesellschaft Low-tension power circuit-breaker with a split insulant housing
EP0028013A1 (en) * 1979-10-27 1981-05-06 Fuji Electric Co. Ltd. Power circuit breaker provided with a casing

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3422235A (en) * 1966-01-28 1969-01-14 Heinemann Electric Co Arcing grid case support means
US3329793A (en) * 1966-01-28 1967-07-04 Heinemann Electric Co Circuit breaker case
US4389555A (en) * 1982-04-05 1983-06-21 Heinemann Electric Company Circuit breaker with increased electrical spacing
US4598186A (en) * 1983-05-09 1986-07-01 Square D Company Vent arrangement for high amperage molded case circuit breaker
US4524339A (en) * 1983-05-09 1985-06-18 Square D Company Contact control arrangement for high amperage molded case circuit breaker

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2309032A1 (en) * 1975-04-21 1976-11-19 Mang Ets Gerard Compact, modular electric circuit breaker - has electromagnet and flat sub-assembly with moving and fixed contacts
EP0003736A1 (en) * 1978-01-19 1979-09-05 Siemens Aktiengesellschaft Low-tension power circuit-breaker with a split insulant housing
EP0028013A1 (en) * 1979-10-27 1981-05-06 Fuji Electric Co. Ltd. Power circuit breaker provided with a casing

Also Published As

Publication number Publication date
CA1331775C (en) 1994-08-30
EP0360366B1 (en) 1994-11-30
DE58908683D1 (en) 1995-01-12
US4899253A (en) 1990-02-06
JPH02197022A (en) 1990-08-03
EP0360366A2 (en) 1990-03-28
ES2064429T3 (en) 1995-02-01

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