JP2008271710A - Breaker unit - Google Patents

Breaker unit Download PDF

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JP2008271710A
JP2008271710A JP2007111818A JP2007111818A JP2008271710A JP 2008271710 A JP2008271710 A JP 2008271710A JP 2007111818 A JP2007111818 A JP 2007111818A JP 2007111818 A JP2007111818 A JP 2007111818A JP 2008271710 A JP2008271710 A JP 2008271710A
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breaker
connection
breakers
bus bar
adapter
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JP2007111818A
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JP4958282B2 (en
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Yasushi Matsukuma
裕史 松隈
Hiroshi Ito
博司 伊藤
Hiroaki Maruoka
弘明 丸岡
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Nitto Kogyo Corp
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Nitto Kogyo Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a breaker unit installed with breakers on the upper face of an adapter, capable of efficiently switching the breaker with the least wasted space even when two or more circuits are required. <P>SOLUTION: This breaker unit includes: the adapter 3 provided with a bus bar connecting portion on the back face; at least two breakers 4, 4 with power supply side terminals 41 facing each other on the upper face of the adapter 3; and a branch bar 21 for connecting the power supply side terminals 41, 41 of the breakers 4 with a plug terminal 2 by being intervened between the two breakers 4, 4 so as to reach the power supply side terminals 41 from the bus bar connecting portion. The connection of two circuits of breakers is completed by connecting the breaker unit 1 with the bus bar 100, thereby improving the workability and effective space utilization. Further, this enables a breakdown in the breaker to be efficiently coped with only by replacing the broken-down breaker. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、アダプタの上面にブレーカを搭載したブレーカユニット関するものである。   The present invention relates to a breaker unit in which a breaker is mounted on an upper surface of an adapter.

従来、背面に母線バーとの接続部を設けたアダプタの上面にブレーカを搭載したブレーカユニットは、例えば、特許文献１に記載されているように、１台のブレーカを搭載するものであった。ところが、２回路以上必要な場合、すなわち２台以上のブレーカが必要な場合はその数分のアダプタと収納スペースが必要であった。   Conventionally, a breaker unit in which a breaker is mounted on the upper surface of an adapter provided with a connection portion with a bus bar on the back surface has been mounted with a single breaker as described in Patent Document 1, for example. However, when two or more circuits are required, that is, when two or more breakers are required, the adapters and the storage spaces corresponding to the number of them are necessary.

また、特許文献２に記載されているように、２回路分の回路を一体に成形したブレーカがあったが、このようなものは、１回路が故障したとき、ブレーカごと取り替える必要があり、正常に動作する1回路分が無駄になるという問題があった。
特開２００５−１５８４２０号公報 特開２００３−２４２８７５号公報 Moreover, as described in Patent Document 2, there is a breaker in which circuits for two circuits are integrally formed. However, when one of the breakers breaks down, it is necessary to replace the breaker with the circuit breaker. There is a problem that one circuit that operates normally is wasted.
JP 2005-158420 A JP 2003-242875 A

本発明は前記のような従来の問題点を解決して、２回路以上の回路数を必要とする場合でもスペースをとらず、ブレーカの交換が無駄なく出来るブレーカユニットを提供する。   The present invention solves the conventional problems as described above, and provides a breaker unit that does not take up space even when two or more circuits are required and can be replaced without waste.

本発明のブレーカユニットは、背面に母線バーとの接続部を設けたアダプタと、このアダプタの上面に電源側端子を向かい合わせて搭載した少なくとも２台のブレーカと、前記した母線バー接続部から電源側端子に達するように２台のブレーカ間に介入されて各ブレーカの電源側端子と前記した母線バー接続部とを接続する分岐バーを備えたことを特徴とする。また、この発明において、アダプタの中央部に設けた分岐バー通過孔の、母線バーと水平方向の縁部をブレーカ取付面側に立設させてもよい。また、各ブレーカの電源側端子と前記した母線バー接続部とを接続する分岐バーとしては、一端を母線バー接続用のプラグ端子との接続部としたベース片部の他端より接続片部を立ち上がらせてその上端を接続端子部とした接続導体と、この接続端子部に着脱自在であって両端がブレーカの電源端子部との接続部に形成されている接続バーとよりなるものとすれば、ブレーカ間に介在させるスペースを最小とすることができるので全体をコンパクト化するうえで好ましいものとなる。   The breaker unit of the present invention includes an adapter having a connection portion with a bus bar on the back surface, at least two breakers mounted with the power-side terminals facing each other on the upper surface of the adapter, and a power source from the bus bar connection portion described above. A branch bar is provided between the two breakers so as to reach the side terminal and connects the power source side terminal of each breaker to the bus bar connecting portion described above. In the present invention, the edge of the branch bar passage hole provided in the center of the adapter in the horizontal direction with the bus bar may be erected on the breaker mounting surface side. In addition, as a branch bar that connects the power supply side terminal of each breaker and the bus bar connecting portion described above, the connecting piece portion is connected to the other end of the base piece portion with one end as a connecting portion with the plug terminal for connecting the bus bar. If it is made up of a connection conductor that rises and has its upper end as a connection terminal part, and a connection bar that is detachable from this connection terminal part and that is formed at the connection part with the power supply terminal part of the breaker Since the space interposed between the breakers can be minimized, it is preferable to make the whole compact.

本発明のブレーカユニットは、アダプタの上面に少なくとも２台のブレーカを搭載したブレーカユニットを母線バーに接続することで、２回路分のブレーカの接続が完了するので、作業性が向上する上、１台のブレーカを搭載したブレーカユニットと同じ数のブレーカを小さいスペースで収納できる。また、ブレーカはアダプタに着脱可能に取付けられているので、どちらかのブレーカが故障した場合、該当のブレーカを交換するだけで対応できるので無駄がない。   In the breaker unit of the present invention, since the connection of the breaker for two circuits is completed by connecting the breaker unit having at least two breakers mounted on the upper surface of the adapter to the bus bar, workability is improved. The same number of breakers as a breaker unit equipped with one breaker can be stored in a small space. In addition, since the breaker is detachably attached to the adapter, if one of the breakers breaks down, it can be handled simply by replacing the corresponding breaker, so there is no waste.

また、アダプタの中央部に設けた分岐バー通過孔の、母線バーと水平方向の縁部をブレーカ取付面側に立設させることにより、分岐バーと機器取付ベースとの絶縁距離を充分に確保することができる。   In addition, the insulation distance between the branch bar and the device mounting base is sufficiently secured by standing the edge of the branch bar passage hole provided in the center of the adapter in the horizontal direction with the bus bar in the horizontal direction. be able to.

次に、本発明の好ましい実施の形態を図に基づき説明する。
図１は第１の実施形態を使用した分電盤を示す図であり、図２から図５は第１の実施形態を示す図である。
図において、１はブレーカユニットであり、このブレーカユニット１は、背面に母線バー接続部であるプラグ端子２１を３個設けた合成樹脂製のアダプタ３の上面に２台のブレーカ４、４を、それぞれの電源側端子４１、４１が向かい合わせとなるように相互間に所要の空間をあけて配置してねじにより着脱可能に搭載し、前記したプラグ端子２１とブレーカ４の電源側端子４１、４１とを２台のブレーカ４、４間の前記空間に一部を介在させた分岐バー２により、電気的に接続したものである。 Next, a preferred embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a view showing a distribution board using the first embodiment, and FIGS. 2 to 5 are views showing the first embodiment.
In the figure, 1 is a breaker unit, and this breaker unit 1 has two breakers 4 and 4 on the upper surface of a synthetic resin adapter 3 provided with three plug terminals 21 which are bus bar connecting portions on the back surface. The power supply side terminals 41, 41 are arranged so as to face each other with a required space between them and are detachably mounted by screws. The plug terminal 21 and the power supply side terminals 41, 41 of the breaker 4 are mounted. Are electrically connected by a branch bar 2 having a part interposed in the space between two breakers 4 and 4.

向かい合わせて搭載されるブレーカ４、４間の空間に一部が介在されて各ブレーカ４の電源側端子４１、４１と前記した母線バー接続部とを接続する分岐バー２としてこの実施形態で示したものは、図９に示すように、一端を母線バー接続用のプラグ端子２２と、前記した接続端子部２２ｂに着脱自在に螺子止めされた平板の接続バー接続バー２３とよりなり、この接続バー２３の両端をブレーカ４の電源端子部４１、４１との接続部２３ｂ、２３ｂに形成したものとしている。   In this embodiment, it is shown as a branch bar 2 that is partly interposed in the space between the breakers 4 and 4 mounted facing each other and connects the power supply side terminals 41 and 41 of each breaker 4 and the bus bar connecting portion described above. As shown in FIG. 9, one end includes a plug terminal 22 for connecting a bus bar and a flat connection bar connection bar 23 that is detachably screwed to the connection terminal portion 22b. Both ends of the bar 23 are formed in connection portions 23b and 23b with the power supply terminal portions 41 and 41 of the breaker 4.

また、前記したブレーカユニット１は、分電盤の盤面に垂直に配置した３本の母線バー１００にプラグイン式に嵌脱自在とした前記プラグ端子２１を接続した３本の接続導体２２をもって分電盤の盤面と平行にアダプタ３の背面に配置し、前記した接続導体２２をその接続片部２２ａがアダプタ３の中央部に設けた通過孔３１を介して２台のブレーカ４、４間の空間に介在されるように立ち上がらせて、各接続片部２２ａの先端に設けた接続端子部２２ｂをアダプタ３の上面側に臨ませ、この接続端子部２２ｂに平板の接続バー２３をその中央部の接続部２３ａにおいて螺合し、この接続バー２３の両端部２３ｂ、２３ｂにブレーカ４、４の電源端子部４１、４１を接続して構成される。   Further, the breaker unit 1 described above has three connection conductors 22 in which the plug terminals 21 that are pluggable and detachable are connected to three bus bars 100 arranged perpendicular to the surface of the distribution board. It arrange | positions in the back surface of the adapter 3 in parallel with the board surface of an electrical panel, The above-mentioned connection conductor 22 is connected between the two breakers 4 and 4 via the passage hole 31 which the connection piece part 22a provided in the center part of the adapter 3. The connection terminal portion 22b provided at the tip of each connection piece portion 22a faces the upper surface side of the adapter 3 so as to be interposed in the space, and a flat connection bar 23 is provided at the center portion of the connection terminal portion 22b. And the power supply terminal portions 41 and 41 of the breakers 4 and 4 are connected to both end portions 23b and 23b of the connection bar 23.

そして、このブレーカユニット１は、ベース片部２２ｃの一端に接続したプラグ端子２１により母線バー１００に接続したうえ、母線バー１００の両側に設置したブレーカユニット取付レール２００にアダプタ３の両側に張設した取付片部３２、３２を支持させ、取付片部に設けた取付孔３２ａにねじを挿通して、前記取付レール２００に設けた取付孔２０１に固定して取り付けるものである。なお、アダプタ３は上面に機器取付ベース３３を介在させてブレーカ４、４が取付けられている。   The breaker unit 1 is connected to the bus bar 100 by the plug terminal 21 connected to one end of the base piece 22c, and is stretched on both sides of the adapter 3 to the breaker unit mounting rails 200 installed on both sides of the bus bar 100. The attachment pieces 32 and 32 are supported, and screws are inserted into the attachment holes 32a provided in the attachment pieces and fixed to the attachment holes 201 provided in the attachment rail 200. The adapter 3 has breakers 4 and 4 attached to the upper surface with a device mounting base 33 interposed therebetween.

このように、ブレーカ４はアダプタ３の上面に２台のブレーカ４、４を搭載したものであるから、ブレーカユニット１を母線バー１００に接続することで、２回路分のブレーカの接続が完了するため、作業性が向上するうえ、１台を搭載したものに比べ、小さいスペースでブレーカの収納が可能である。また、多数の回路が必要な場合、分電盤自体の大きさを大きくすること無く、ブレーカの収納数を増やすことが出来る。さらに、ブレーカ４、４はそれぞれ着脱可能に搭載されているので、どちらかのブレーカが故障した場合、該当のブレーカのみを交換するだけで無駄なく対応できる。   As described above, since the breaker 4 has two breakers 4 and 4 mounted on the upper surface of the adapter 3, the connection of the breakers for two circuits is completed by connecting the breaker unit 1 to the bus bar 100. Therefore, workability is improved, and the breaker can be stored in a small space as compared with the one equipped with one. When a large number of circuits are required, the number of breakers can be increased without increasing the size of the distribution board itself. Further, since the breakers 4 and 4 are detachably mounted, if one of the breakers breaks down, it can be dealt with without waste by replacing only the corresponding breaker.

また、ブレーカ４はアダプタ３の上面に電源側端子４１を向かい合わせて搭載したものであるから、アダプタ３の中央部に設けた通過孔３１より接続片部２２ａを立上がらせ、接続バー２３により両端部２３ｂ、２３ｂをブレーカ４の電源側端子４１に接続すればよく、簡単な構造で接続が可能である。   Further, since the breaker 4 is mounted with the power supply side terminal 41 facing the upper surface of the adapter 3, the connection piece 22 a is raised from the passage hole 31 provided in the center of the adapter 3, and the connection bar 23 is used. Both ends 23b and 23b may be connected to the power supply side terminal 41 of the breaker 4, and the connection is possible with a simple structure.

また図５に示すように、アダプタ３の中央部に設けた通過孔３１の母線バーと水平方向の縁部３１ａをブレーカ取付面側に立設させることにより、接続導体２２と金属製の機器取付ベース３３との絶縁距離を充分に確保することができるので、通過孔３１の幅を狭くし、ブレーカユニットの横幅を小さくすることができ、分電盤の横幅を小さくすることが可能である。また、図６に示すように、ブレーカ４の電源側端子４１に端子カバー５を取付け、通過孔３１の母線バーと垂直方向の縁部３１ｂをブレーカ取付面側に端子カバー５の下端部まで覆うように立設させることにより、接続片部２２ａ及び接続バー２３がより確実に保護される。なお、通過孔３１の縁部ではなく、アダプタ３の上下辺３４の中央部のみにブレーカ取付面側に壁を設けても良い。   Further, as shown in FIG. 5, the connection bar 22 and the metal equipment are attached by erecting the bus bar 31 and the horizontal edge 31 a of the passage hole 31 provided at the center of the adapter 3 on the breaker mounting surface side. Since a sufficient insulation distance from the base 33 can be secured, the width of the passage hole 31 can be reduced, the lateral width of the breaker unit can be reduced, and the lateral width of the distribution board can be reduced. Further, as shown in FIG. 6, the terminal cover 5 is attached to the power supply side terminal 41 of the breaker 4, and the edge portion 31 b perpendicular to the bus bar of the passage hole 31 is covered to the lower end portion of the terminal cover 5 on the breaker attachment surface side. By standing in this manner, the connection piece 22a and the connection bar 23 are more reliably protected. In addition, you may provide a wall in the breaker attachment surface side not only in the edge part of the passage hole 31, but in the center part of the up-and-down side 34 of the adapter 3. FIG.

また図７に示すものは本発明の第２の実施形態であり、前記した第１の実施形態と基本構成は略同じであるが、第１の実施形態においては各ブレーカ４の電源側端子４１や分岐バー２の安全性を保つための手段を特に限定していないのに対し、第２の実施形態では、電源側端子４１を向かい合わせた２台のブレーカ４、４間に形成される空間の上面と側面を覆って各ブレーカ４の電源側端子４１、４１と、アダプタ３の中央部の通過孔３１より立ち上がらせた分岐バー２の一部である接続導体２２の接続片部２２ａ及びその上端の接続バー２３とを同時に保護する端子カバー５を設けてある点に特徴があり、これにより、各ブレーカ毎に端子カバーを設けたものに比べ、部品点数が減り、作業性が向上するうえ、接続片部２２ａ及び接続バー２３も確実に覆うことができるため、感電の防止もできる。また、天板部５３にそれぞれの相を表示することにより、作業性が向上するうえ、誤配線がなくなる。なお、この実施形態で示した端子カバー５は、図８に示すように、２台のブレーカ４、４の間の空間幅より広幅で、所要の通気孔５２が配設されている天板部５３の下面から、それぞれの相を絶縁する隔壁５１を垂設して相間の絶縁をも適切に行うことができるものとしている。また、端子カバー５を透明にすることにより、接続バー２３の中央部の接続部２３ａ及びブレーカ４の電源側端子４１の螺合状態を目視することができる。   FIG. 7 shows a second embodiment of the present invention. The basic configuration is substantially the same as that of the first embodiment, but in the first embodiment, the power supply side terminal 41 of each breaker 4 is shown. In the second embodiment, the space formed between the two breakers 4 and 4 facing each other on the power supply side terminal 41 is not particularly limited. The connection piece 22a of the connection conductor 22 which is a part of the branch bar 2 raised from the power supply side terminals 41, 41 of each breaker 4 and the passage hole 31 at the center of the adapter 3 This is characterized in that a terminal cover 5 that protects the upper end connection bar 23 at the same time is provided, which reduces the number of parts and improves workability compared to a terminal cover provided for each breaker. , Connection piece 22a and connection bar It is possible to 3 also reliably cover can also prevent shock. In addition, displaying each phase on the top plate portion 53 improves workability and eliminates erroneous wiring. As shown in FIG. 8, the terminal cover 5 shown in this embodiment is wider than the space width between the two breakers 4 and 4, and the top plate portion in which the required vent holes 52 are disposed. It is assumed that partition walls 51 that insulate the respective phases are suspended from the lower surface of 53 so that the insulation between the phases can be appropriately performed. Further, by making the terminal cover 5 transparent, it is possible to visually check the screwed state of the connection portion 23a at the center of the connection bar 23 and the power supply side terminal 41 of the breaker 4.

以上においては、母線バーを３本として実施形態を説明したが、母線バー１００は３相４線式のものに合せ４本とすることもでき、何本であってもよく、また、ブレーカユニットに搭載するブレーカの数は２台以上であってもよい。さらに、母線バー１００への接続のプラグ端子２１は、母線バー１００側にプラグ端子がある場合は、差込片でもよい。   In the above, the embodiment has been described with three bus bars. However, the bus bar 100 may be four in accordance with the three-phase four-wire type, and may be any number. Two or more circuit breakers may be mounted on the. Further, the plug terminal 21 connected to the bus bar 100 may be a plug-in piece when the plug terminal is on the bus bar 100 side.

本発明の第１の実施形態を使用した分電盤を分解して示す斜視図。The perspective view which decomposes | disassembles and shows the distribution board using the 1st Embodiment of this invention. 本発明の第１の実施形態を示す斜視図。The perspective view which shows the 1st Embodiment of this invention. 本発明の第１の実施形態のブレーカユニットの母線バー接続部を示す斜視図。The perspective view which shows the bus-bar connection part of the breaker unit of the 1st Embodiment of this invention. 本発明の第１の実施形態の端子カバーを外した状態を示す斜視図。The perspective view which shows the state which removed the terminal cover of the 1st Embodiment of this invention. 本発明の第１の実施形態のブレーカユニットのアダプタからブレーカを外した状態を示す斜視図。The perspective view which shows the state which removed the breaker from the adapter of the breaker unit of the 1st Embodiment of this invention. 本発明の第１の実施形態の平面図。The top view of the 1st Embodiment of this invention. 本発明の第２の実施形態を示す斜視図。The perspective view which shows the 2nd Embodiment of this invention. 本発明の第２の実施形態の端子カバーを示す斜視図。The perspective view which shows the terminal cover of the 2nd Embodiment of this invention. 本発明で用いる分岐バーの１例を示す斜視図。The perspective view which shows an example of the branch bar used by this invention.

符号の説明Explanation of symbols

１ ブレーカユニット
２ 分岐バー
21 プラグ端子
22 接続導体
22a 接続辺部
22b 接続端子部
22c ベース片部
23 接続バー
23a 接続部
23b 両端部
３ アダプタ
31 通過孔
31a 母線バーと水平方向の縁部
32b 母線バーと垂直方向の縁部
32 取付片部
32a 取付孔
33 機器取付ベース
４ ブレーカ
41 電源側端子
５ 端子カバー
100 母線バー
200 取付レール
201 取付孔 1 Breaker unit 2 Branch bar
21 Plug terminal
22 Connection conductor
22a Connection side
22b Connection terminal
22c base piece
23 Connection bar
23a connection
23b Adapter 3 at both ends
31 Through hole
31a Busbar and horizontal edge
32b Bus bar and vertical edge
32 Mounting piece
32a Mounting hole
33 Equipment mounting base 4 Breaker
41 Power supply side terminal 5 Terminal cover
100 busbar
200 Mounting rail
201 Mounting hole

Claims (3)

背面に母線バーとの接続部を設けたアダプタと、このアダプタの上面に電源側端子を向かい合わせて搭載した少なくとも２台のブレーカと、前記した母線バー接続部から電源側端子に達するように２台のブレーカ間に介入されて各ブレーカの電源側端子と前記した母線バー接続部とを接続する分岐バーとを備えた分電盤のブレーカユニット。   An adapter provided with a connection portion with a bus bar on the back, at least two breakers mounted with the power supply side terminals facing each other on the upper surface of the adapter, and 2 so as to reach the power supply side terminal from the bus bar connection portion described above A breaker unit of a distribution board provided with a branch bar intervening between the breakers of the base and connecting the power supply side terminal of each breaker and the bus bar connecting portion described above. アダプタの中央部に設けた分岐バー通過孔の、母線バーと水平方向の縁部をブレーカ取付面側に立設させた請求項１に記載の分電盤のブレーカユニット。   The breaker unit for a distribution board according to claim 1, wherein a branch bar passage hole provided in a central portion of the adapter is erected on the breaker mounting surface side with a bus bar and a horizontal edge. アダプタの母線バー接続部から電源側端子に達するように２台のブレーカ間に介入される分岐バーが、一端を母線バー接続用のプラグ端子との接続部としたベース片部の他端より接続片部を立ち上がらせてその上端を接続端子部とした接続導体と、この接続端子部に着脱自在で、両端がブレーカの電源端子部との接続部に形成されている接続バーとよりなる請求項１または２に記載の分電盤のブレーカユニット。   A branch bar intervening between the two breakers to reach the power supply side terminal from the adapter bus bar connection part is connected from the other end of the base piece with one end connected to the bus bar plug terminal. A connection conductor having one end raised and having an upper end as a connection terminal portion, and a connection bar that is detachably attached to the connection terminal portion and formed at both ends of the connection terminal with the power supply terminal portion of the breaker. The breaker unit of the distribution board as described in 1 or 2.
JP2007111818A 2007-04-20 2007-04-20 Breaker unit Active JP4958282B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011029083A (en) * 2009-07-28 2011-02-10 Nitto Electric Works Ltd Breaker unit
CN102881527A (en) * 2011-07-13 2013-01-16 通用电气公司 Mounting modules for a DC distribution assembly
JP2015202006A (en) * 2014-04-10 2015-11-12 日東工業株式会社 Power supply feeding structure of trunk line bar

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0684710U (en) * 1993-05-14 1994-12-02 鹿島建設株式会社 Uninterruptible distribution board
JP2003242875A (en) * 2002-02-15 2003-08-29 Kawamura Electric Inc Circuit breaker
JP2005158420A (en) * 2003-11-25 2005-06-16 Nitto Electric Works Ltd Plug-in unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0684710U (en) * 1993-05-14 1994-12-02 鹿島建設株式会社 Uninterruptible distribution board
JP2003242875A (en) * 2002-02-15 2003-08-29 Kawamura Electric Inc Circuit breaker
JP2005158420A (en) * 2003-11-25 2005-06-16 Nitto Electric Works Ltd Plug-in unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011029083A (en) * 2009-07-28 2011-02-10 Nitto Electric Works Ltd Breaker unit
CN102881527A (en) * 2011-07-13 2013-01-16 通用电气公司 Mounting modules for a DC distribution assembly
JP2015202006A (en) * 2014-04-10 2015-11-12 日東工業株式会社 Power supply feeding structure of trunk line bar

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