EP1850425A1 - Steckverbinder, Adapter, System und Verfahren um ein Niederspannungsschaltgerät mit einem Starkstromkabel zu verbinden - Google Patents

Steckverbinder, Adapter, System und Verfahren um ein Niederspannungsschaltgerät mit einem Starkstromkabel zu verbinden Download PDF

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Publication number
EP1850425A1
EP1850425A1 EP06008403A EP06008403A EP1850425A1 EP 1850425 A1 EP1850425 A1 EP 1850425A1 EP 06008403 A EP06008403 A EP 06008403A EP 06008403 A EP06008403 A EP 06008403A EP 1850425 A1 EP1850425 A1 EP 1850425A1
Authority
EP
European Patent Office
Prior art keywords
adapter
plug
low
voltage switching
switching device
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.)
Withdrawn
Application number
EP06008403A
Other languages
English (en)
French (fr)
Inventor
Georg Bollinger
Berthold Heldmann
Norbert SÖRGEL
Josef Zizler
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
Priority to EP06008403A priority Critical patent/EP1850425A1/de
Publication of EP1850425A1 publication Critical patent/EP1850425A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/582—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable the cable being clamped between assembled parts of the housing
    • H01R13/5829—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable the cable being clamped between assembled parts of the housing the clamping part being flexibly or hingedly connected to the housing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
    • H01H11/0031—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for allowing different types or orientation of connections to contacts
    • H01H2011/0037—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for allowing different types or orientation of connections to contacts with removable or replaceable terminal blocks

Definitions

  • the invention relates to devices and methods for making an electrical connection between a power cable and a low-voltage switching device.
  • Low-voltage switching devices especially contactors, circuit breakers or different kinds of relays that are adapted to switch currents of power circuits in the low-voltage range, between 100 Volt and 1000 Volt, are usually connected to a power cable by clamping.
  • Some of the most common possibilities are cage- or different kinds of screw clamp terminals, the latter of which is shown in Figure 5 as the connecting terminals in a contactor.
  • Connecting a low-voltage switching device to a power cable takes some time, regardless what kind of clamping is used. Under circumstances it is desirable to have the time required to make the electrical connection as short as possible.
  • an electrical installation comprising low-voltage switching devices and power cables is constructed and tested in a testing location and then installed on an operational site, releasing the connection between the low-voltage switching device and the respective power cable should be as fast and uncomplicated as possible.
  • the technician should be able to connect the leads in the original order to ensure correct order of rotary current phases.
  • EP 1 447 829 A1 and WO 2006/027336 show different possibilities to relieve the latter shortcoming. These solutions may not be too well suitable to use if there is no permanent wiring, or if the low-voltage switching device has clamp terminals for receiving leads of a power cable terminals, in which case the extra effort of opening and closing would still be required when re-installing an installation comprising low-voltage switching devices and power cables.
  • An object of the invention is to bring out a solution for electrically connecting a low-voltage switching device to a power cable in a fast and uncomplicated manner.
  • This object can be achieved with a plug-type connector according to claim 1 and with an adapter according to claim 5, or with a system according to claim 9, and by using a method according to claim 14.
  • a plug-type connector comprises a body comprising a first set of openings and a set of legs comprising a second set of openings, and clamp terminals in said body, suitable for clamping leads of a power cable that are introduced through openings of said first set so that each of said clamp terminals will be accessible from a responsive opening of said second set, the leads of the power cable can be accessed via the legs for electrical connection by also other connecting means than clamps. This contributes for the speedy connecting and disconnecting of the power cable. If the openings of the second set are located at the free ends of the legs, the unintented electrical connection to the leads of the power cable may be better avoided which improves security of the individuals working at the installation.
  • an adapter comprises a body comprising recesses accessible from outside of said body, and terminals extending into said recesses from inside said body, the other ends of said terminals sticking out from said body, the adapter may, on one hand, be used to receive a plug-type connector and, on the other hand, be connected to a low-voltage switching device. This facilitates the speedy connecting and disconnecting of the power cable to or from the low-voltage switching device.
  • a system for connecting a low-voltage switching device to a power cable comprises a plug-type connector according to any one of claims 1 to 4, and an adapter according to any one of claims 5 to 8, wherein the plug-type connector and the adapter are matched to provide a stable electrical connection
  • the system may be connected or disconnected easily and relatively fast.
  • the system further comprises a low-voltage switching device, in particular a contactor, comprising clamping terminals on its output side, and wherein said other ends and said clamping terminals are matched, a power cable can be connected to the low-voltage switching device quickly and in a relatively uncomplicated manner.
  • a method for connecting a low-voltage switching device to a power cable comprises the steps of connecting the power cable to a connector, connecting the low-voltage switching device to an adapter, and connecting said connector to said adapter.
  • the releasing and repeated connecting of the low-voltage switching device may be carried out faster, especially if the connector is a plug-type connector, let alone if the plug-type connector, the adapter and the low-voltage switching device form a system according to any one of claims 11 to 13.
  • FIG. 1 shows a plug-type connector 100 in perspective view.
  • the plug-type connector 100 comprises a body 140 that comprises a set of openings 103, 113, 123, 133 for receiving leads of a power cable.
  • a power cable has usually three phase leads, a fourth lead for the protective earth is preferably provided as well.
  • the opening 133 would be the opening for the protective earth.
  • each of the openings 103, 113, 123, 133 there is provided a clamp terminal 102, 112, 122, 132 in the body 140.
  • Each of the clamp terminals 102, 112, 122, 132 is suitable for clamping a lead of a power cable that is introduced through the responsive opening 103, 113, 123, 133 into the clamp terminal 102, 112, 122, 132.
  • a clamp terminal 102, 112, 122, 132 is accessible from a responsive opening provided in a leg 101, 111, 121, 131.
  • Legs 101, 111, 121, 131 are shown in Figure 2, wherein also openings 201, 211, 221, 231 are illustrated.
  • the legs 101, 111, 121, 131 like preferably also the rest of the plug-type connector 100, are made of halogen-free material, advantageously having a flammability classification UL94 V0 or better.
  • the leads of the power cable are thus introduced to the clamp terminals 102, 112, 122, 132 through the openings 103, 113, 123, 133. If the clamp terminals 102, 112, 122, 132 are screw clamps, there may be locking screws 104, 114, 124, 134 provided too.
  • the power cable can be locked with a strain-relief collar 160 so that a throughpass 150 is formed between the strain-relief collar 160 and the counterpart part 163 of the body 140.
  • the strain-relief collar 160 is preferably pivotable around a hinge 161, and the power cable can be locked by closing the strain-relief collar 160 around the cable with a screw through the screw opening 165 so that the upper part 163 will be fastened to the lower part 164.
  • the strain-relief collar 160 may be provided with wings 160.
  • a latch member such as a latch finger 270 mounted on a latch slide 170 is preferably provided too.
  • the date of manufacture, testing, check or installation can be stamped or sticked on a reserved area 280.
  • FIG 3 shows an adapter 300 in a perspective view.
  • the adapter 300 comprises terminals 411, 412, 413 (shown in Figure 4), the ends of which are located in the recesses 421, 423, 425 (also shown in Figure 4).
  • the other ends 311, 321, 331 of the terminals 411, 412, 413 stick out of the body 340 of the adapter 300, the terminals 411, 412, 413 may then have a bent shape to save space.
  • the recesses 421, 423, 425, 426 are accessible from outside of the body 340.
  • the terminals 411, 412, 413 extend into recesses 421, 423, 425. Between the recesses 421, 423, 425 there may be further recesses 422, 424 to increase stiffness of the adapter 300.
  • the body 340 is preferably made of halogen-free material, advantageously having a flammability classification UL94 V0 or better.
  • Legs 101, 111, 121 of the plug-type connector 100 can be placed into the responsive recesses 421, 423, 425 so that the ends of the terminals 411, 412, 413 penetrate into the openings 201, 211, 221 at the ends of the legs 101, 111, 121.
  • the other ends 311, 321, 331 of the terminals 411, 412, 413 can then be connected to the low-voltage switching device 500 in the manner shown in Figure 6.
  • Leg 131 with opening 231 for the protective earth from clamp terminal 132 is similarly connected to the adapter 300.
  • the protective earth can be connected to the low-voltage switching device 500 via opening 383 to a terminal 381, via a connecting means such as a screw clamp 382.
  • the end faces 350 of the body 340 preferably comprise cut-out regions 351, 352, 353, 354 that are matched with walls 551, 552, 553, 554 of a low-voltage switching device 500 so that the low-voltage switching device 500 can be brought closer to the adapter 300.
  • the plug-type connector 100 and adapter 300 are matched so that when the legs 101, 111, 121, 131 are properly in place in the recesses 421, 423, 425, 426, the terminals 411, 412, 413 in the adapter 300 provide a stable electrical connection between the out-sticking ends 311, 321, 331 of the terminals 411, 412, 413 and the corresponding clamp terminals 102, 112, 122.
  • the low-voltage switching device 500 and the adapter 300 are matched so that when the out-sticking ends 311, 321, 331 of the terminals 411, 412, 413 of the adapter 300 are properly in place in the clamps 501-523 of the low-voltage switching device 500, the responsive terminals 511, 512, 513 of the low-voltage switching device have a stable electrical connection between the terminals 411, 412, 413 of the adapter 300.
  • Figure 6 shows the contactor connected to an adapter, and the adapter connected to a plug-type connector.
  • the low-voltage switching device 500 When the electrical installation is built up for testing, the low-voltage switching device 500 is mounted to the wall, the adapter 300 is fastened to the low-voltage switching device 500 and the plug-type connector 100 is connected to a power cable and then plugged to the adapter 300.
  • the plug-type connector 100 is removed from the adapter 300 and the low-voltage switching device 500 is dimounted from the wall. It is not necessary to dismount the adapter 300 or the power cable.
  • the low-voltage switching device 500 with the adapter 300 already mounted is mounted to the wall, and the power cable with the already mounted plug-type connector 100 is connected by plugging the plug-type connector 100 into the adapter 300.
  • the plug-type connector 100 can preferably be released from the adapter 300 only by inserting a tool, such as a screw driver, into a tool opening of the adapter 300 and displacing the latch member, such as by turning the latch finger 270.
  • a tool such as a screw driver
  • the invention is very useful for preparing the load-side connections between the low-voltage switching device 500 and the load, such as electric motor, since the power cables between the low-voltage switching device 500 and load are usually tested before bringing to the production site, whereas the power cables from the distribution network to the low-voltage switching does not necessarily need to be tested before changing installation.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
EP06008403A 2006-04-24 2006-04-24 Steckverbinder, Adapter, System und Verfahren um ein Niederspannungsschaltgerät mit einem Starkstromkabel zu verbinden Withdrawn EP1850425A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06008403A EP1850425A1 (de) 2006-04-24 2006-04-24 Steckverbinder, Adapter, System und Verfahren um ein Niederspannungsschaltgerät mit einem Starkstromkabel zu verbinden

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06008403A EP1850425A1 (de) 2006-04-24 2006-04-24 Steckverbinder, Adapter, System und Verfahren um ein Niederspannungsschaltgerät mit einem Starkstromkabel zu verbinden

Publications (1)

Publication Number Publication Date
EP1850425A1 true EP1850425A1 (de) 2007-10-31

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Application Number Title Priority Date Filing Date
EP06008403A Withdrawn EP1850425A1 (de) 2006-04-24 2006-04-24 Steckverbinder, Adapter, System und Verfahren um ein Niederspannungsschaltgerät mit einem Starkstromkabel zu verbinden

Country Status (1)

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EP (1) EP1850425A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010121728A2 (de) * 2009-04-20 2010-10-28 Phoenix Contact Gmbh & Co. Kg Elektrische anschlussklemme zum durchführen einer leitung durch eine wandung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7813854U1 (de) * 1978-05-08 1979-10-11 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Mit einem mehrpoligen Leitungsschutzschalter kombinierter Fehlerstromschutzschalter
GB2091049A (en) * 1981-01-09 1982-07-21 Eltra Corp Electrical connector
FR2597665A1 (fr) * 1986-04-22 1987-10-23 Telemecanique Electrique Appareil modulaire pour la commande d'automatismes industriels comportant un bornier debrochable
US5606299A (en) * 1995-11-14 1997-02-25 Eaton Corporation Modular surge suppressor
EP1241737A1 (de) * 2001-03-13 2002-09-18 GIRA GIERSIEPEN GmbH. & CO. KG Elektrisches Installationsgerät mit schraubenloser Zugentlastung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7813854U1 (de) * 1978-05-08 1979-10-11 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Mit einem mehrpoligen Leitungsschutzschalter kombinierter Fehlerstromschutzschalter
GB2091049A (en) * 1981-01-09 1982-07-21 Eltra Corp Electrical connector
FR2597665A1 (fr) * 1986-04-22 1987-10-23 Telemecanique Electrique Appareil modulaire pour la commande d'automatismes industriels comportant un bornier debrochable
US5606299A (en) * 1995-11-14 1997-02-25 Eaton Corporation Modular surge suppressor
EP1241737A1 (de) * 2001-03-13 2002-09-18 GIRA GIERSIEPEN GmbH. & CO. KG Elektrisches Installationsgerät mit schraubenloser Zugentlastung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010121728A2 (de) * 2009-04-20 2010-10-28 Phoenix Contact Gmbh & Co. Kg Elektrische anschlussklemme zum durchführen einer leitung durch eine wandung
WO2010121728A3 (de) * 2009-04-20 2011-04-21 Phoenix Contact Gmbh & Co. Kg Elektrische anschlussklemme zum durchführen einer leitung durch eine wandung
CN102405566A (zh) * 2009-04-20 2012-04-04 凤凰接触股份有限及两合公司 用于导引导体通过壁体的电气连接端子
JP2012524365A (ja) * 2009-04-20 2012-10-11 フェニックス コンタクト ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト 壁を通して配線を導く電気端子
US8579657B2 (en) 2009-04-20 2013-11-12 Phoenix Contact Gmbh & Co. Kg Electric terminal for leading a line through a wall
CN102405566B (zh) * 2009-04-20 2014-06-04 凤凰接触股份有限及两合公司 用于导引导体通过壁体的电气连接端子

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