JPH02106841A - Movable contact supporting device for circuit breaker - Google Patents
Movable contact supporting device for circuit breakerInfo
- Publication number
- JPH02106841A JPH02106841A JP25889088A JP25889088A JPH02106841A JP H02106841 A JPH02106841 A JP H02106841A JP 25889088 A JP25889088 A JP 25889088A JP 25889088 A JP25889088 A JP 25889088A JP H02106841 A JPH02106841 A JP H02106841A
- Authority
- JP
- Japan
- Prior art keywords
- movable contact
- support pin
- holder
- contact
- groove
- 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
Links
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
- H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
- H01H1/225—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member the supporting member being pivotable
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
- H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
- H01H2001/223—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member using a torsion spring
Landscapes
- Breakers (AREA)
Abstract
Description
この発明は、配線用遮断器などの小型の回路遮断器にお
いて、可動接触子をホルダに支持させるための回路遮断
器の可動接触子支持装置に関する。The present invention relates to a circuit breaker movable contact support device for supporting a movable contact on a holder in a small circuit breaker such as a molded circuit breaker.
第４図は従来の回路遮断器の可動接触子部分を示すもの
で、第４図（Ａ）は要部平面図、第４図（Ｂ）はそのＢ
−Ｂ線に沿う断面図である。
第４図において、１は絶縁物からなるホルダで、このホ
ルダ１を図示しない回路遮断器のケースに回動可能に支
持する開閉軸２と一体に形成されている。ホルダ１は両
側に側壁１ａを持ち、この側壁１ａを上下部でそれぞれ
連結する上部壁１ｂ及び下部壁１ｃと共に略角筒状に構
成されでいる。
ホルダ１には、その側壁１ａに挟まれて、可動接触子３
が支持ピン４により回動可能に支持されている。支持ピ
ン４は可動接触子３を貫通し、その両端は、側壁１ａの
対向面にそれぞれ形成された溝５に差し込まれている。
溝５はホルダ１の後端面に開口している。６は支持ピン
４が溝５から抜は出すことを防止する抜止ピンで、可動
接触子３の側面にホルダ１の前端面と対向するように植
え込まれている。抜止ビン６とホルダ１の前端面との間
には、回路遮断器の投入時に可動接触子３が図の反時計
方向にワイプ動作できるように若干の隙間Ｇが設けられ
ている。
支持ピン５には捩じりばねからなる接触ばね７が巻き掛
けられている。この接触ばね７の一端はホルダ１の上部
壁１ｂに係合され、他端は可動接触子３の後端の溝に係
合され、これにより可動接触子３は図の時計方向の接触
力を与えられている。
なお、８は可動接点、９はリード線である。Figure 4 shows the movable contact part of a conventional circuit breaker. Figure 4 (A) is a plan view of the main part, and Figure 4 (B) is its B.
- It is a sectional view along the B line. In FIG. 4, reference numeral 1 denotes a holder made of an insulating material, which is formed integrally with an opening/closing shaft 2 that rotatably supports the holder 1 in a case of a circuit breaker (not shown). The holder 1 has side walls 1a on both sides, and has a substantially rectangular cylindrical shape with an upper wall 1b and a lower wall 1c connecting the side walls 1a at the top and bottom, respectively. The holder 1 has a movable contact 3 sandwiched between its side walls 1a.
is rotatably supported by a support pin 4. The support pin 4 passes through the movable contact 3, and both ends thereof are inserted into grooves 5 formed in the opposing surfaces of the side wall 1a. The groove 5 is open on the rear end surface of the holder 1. A retaining pin 6 prevents the support pin 4 from being pulled out from the groove 5, and is implanted in the side surface of the movable contact 3 so as to face the front end surface of the holder 1. A slight gap G is provided between the retaining pin 6 and the front end surface of the holder 1 so that the movable contact 3 can wipe in the counterclockwise direction in the figure when the circuit breaker is turned on. A contact spring 7 made of a torsion spring is wound around the support pin 5. One end of this contact spring 7 is engaged with the upper wall 1b of the holder 1, and the other end is engaged with a groove at the rear end of the movable contact 3, so that the movable contact 3 applies a contact force in the clockwise direction in the figure. It is given. Note that 8 is a movable contact and 9 is a lead wire.
ところが、このような従来構成には次のような欠点があ
る。すなわち、可動接触子３をホルダ１に組み込むには
、可動接触子３に接触ばね７を組み合わせ、これに支持
ピン４を挿入したものをまとめてホルダ１に差し込むの
であるが、その際、抜止ピン６は取り付けておくことが
できず、可動接触子３をホルダ１に装着した後に植え込
む。そのため、作業が二度手間になり、組立が煩雑にな
っている。更に、抜止ピン６とホルダ１の前端面との隙
間Ｇによって、回路遮断器の投入時に可動接触子３が長
手方向にずれることがあり、その位置が安定しないとい
う問題がある。
この発明は、抜止ピンを用いることなく可動接触子をホ
ルダに保持させるようにして、組立を簡単にし、また可
動接触子の位置ずれを防止した回路遮断器の可動接触子
支持装置を提供することを目的とするものである。However, such a conventional configuration has the following drawbacks. That is, in order to assemble the movable contactor 3 into the holder 1, the movable contactor 3 is assembled with the contact spring 7, and the support pin 4 is inserted into the movable contactor 3, which is then inserted into the holder 1 all at once. 6 cannot be attached, and is implanted after the movable contact 3 is attached to the holder 1. As a result, the work becomes redundant and the assembly becomes complicated. Furthermore, due to the gap G between the retaining pin 6 and the front end surface of the holder 1, the movable contact 3 may be displaced in the longitudinal direction when the circuit breaker is turned on, resulting in a problem that its position is unstable. The present invention provides a movable contact support device for a circuit breaker that allows the movable contact to be held in a holder without using a retaining pin, which simplifies assembly and prevents the movable contact from shifting. The purpose is to
上記目的を達成するために、この発明は、両側に側壁を
持つ絶縁物のホルダに、前記側壁に挾まれて可動接触子
が支持ピンにより支持され、前記支持ピンに巻き掛けら
れた捩じりばねからなる接触ばねの一端が前記ホルダに
係合され他端が前記可動接触子に係合された回路遮断器
において、ボルダの側壁の対向面にこのホルダの後端面
に開放するかぎ形の溝をそれぞれ形成し、この溝に可動
接触子を支持する支持ピンの両端を差し込むとともに、
この支持ピンを接触ばねの反力により前記溝の終端に押
し付けるようにするものである。In order to achieve the above object, the present invention provides an insulating holder having side walls on both sides, a movable contact sandwiched between the side walls and supported by a support pin, and a torsion wire wound around the support pin. In a circuit breaker in which one end of a contact spring made of a spring is engaged with the holder and the other end is engaged with the movable contact, a hook-shaped groove is provided on the opposing surface of the side wall of the boulder and opens to the rear end surface of the holder. are formed respectively, and both ends of the support pin that supports the movable contact are inserted into these grooves, and
This support pin is pressed against the end of the groove by the reaction force of the contact spring.
可動接触子の支持ピンを差し込む溝をかぎ形とし、支持
ピンに巻き掛ける接触ばねを、支持ピンにかかる接触ば
ねの反力がこの支持ピンを溝の終端に押し付ける向きに
なるように取り付ける。これにより、抜止めの手段を特
別に講じなくても可動接触子は接触ばねのばね力だけで
ホルダに保持される。The groove into which the support pin of the movable contact is inserted is hook-shaped, and the contact spring wound around the support pin is attached in such a way that the reaction force of the contact spring applied to the support pin presses the support pin against the end of the groove. As a result, the movable contact is held in the holder only by the spring force of the contact spring, without having to take special measures to prevent it from coming off.
以下、第１〜３図に基づいてこの発明の詳細な説明する
。なお、従来例と実質的に同一の部分には同一の符号を
付けるものとする。
第１図は３極回路遮断器の可動接触子部分を示し、第１
図（Ａ）はホルダの一部分を破断して示した平面図、第
１図（Ｂ）はそのＢ−Ｂ線に沿う断面図である。また、
第２図はホルダの形状を詳細に示すもので、第２図（Ａ
）は正面図、第２図（Ｂ）はそのＢ−Ｂ線に沿う断面図
である。
第１図及び第２図において、１は絶縁物（モールド樹脂
）のホルダで、両側の側壁１ａ、上部壁１ｂ及び下部壁
１ｃからなる略角筒状に構成され、各種のホルダ１は一
体形成された開閉軸２により互いに連結されている。
ホルダ１には可動接触子３が支持ピン４により回動可能
に支持され、支持ピン４に巻き掛けられた捩じりばねか
らなる接触ばね５により、第１図（Ｂ）の反時計方向に
接触力を与えられている。
ここで、可動接触子３を貫通する支持ピン４は、その両
端がホルダ１の側壁１ａの対向面に形成された溝１０に
差し込まれている。８は可動接点、９はリード線である
。
溝１０は、第２図（Ｂ）に示すように、一端がホルダ１
の後端面１ｄに開口するやや斜め上向きの横溝部１０ａ
と、この横溝部１０ａの他端からこれに直角に上方に曲
がる縦溝部１０ｂとからなるかぎ形を呈している。なお
、縦溝部１０ｂの下方に、ホルダ１の下端面に開放する
溝部１０ｃがあるが、これは縦溝部１０ｂを成形する金
型の構造上の必要から生じたもので、この発明の構成に
は必要ないものである。また、横溝部１０ａの下方の側
壁１ａの隅部は、接触ばね５を係合させるために突出さ
せ突起１１としである。
可動接触子３をホルダ１に組み込むには、接触ばね７の
Ｕ曲げ部を可動接触子３の上面にあてがうようにして組
み合わせ、これに支持ピン４を挿入した上で、支持ピン
４の両端を横溝部１０ａに嵌め込みながらホルダ１に後
方から押し込み、接触ばね７を撓ませてその両脚部先端
をホルダ１の突起１１に係合させる。これにより、支持
ピン４は接触ばねの巻掛部７ａからの反力により縦溝部
１０ｂ内を上昇し、その終端に突き当たったところで第
１図に示す組立状態となる。
すなわち、第１図（Ｂ）において、支持ピン４には接触
ばね７の巻掛部７ａから矢印Ｐで示す向きの反力が作用
し、支持ピン４はかぎ形溝１０の終端に押し付けられる
。したがって、特別の抜止め手段を講じなくても、支持
ピン４が溝１０から抜は出ることがない。図示実施例で
は、溝１０は上向きのかぎ形としたが、これを下向きの
かぎ形にすればよい。
第３図は上記可動接触子部を組み込んだ回路遮断器（配
線用遮断器）を示し、第３図（Ａ）はカバーを半分だけ
取り除いた状態の平面図、第３図（Ｂ）はそのＢ＝Ｂ線
に沿う断面図である。
第３図において、１２はモールドケース、１３はモール
ドカバーで、ホルダ１を連結する開閉軸２は、第３図（
Ａ）に示すように、モールドケース１２の側壁１２ａ及
び隔壁１２ｂに回動可能に嵌め込まれている。電流経路
は電源側端子を兼ねた固定接触子１４、固定接点１５、
可動接点８、可動接触子３、リード線９、電磁用外し装
置１６の引外しコイル１６ａ及び負荷側端子１７により
形成される。
図は回路遮断器の投入状態で、可動接触子３は接触ばね
７を撓ませながら、開閉機構１８により固定接触子１４
に押圧されている。可動接触子３の支持ピン４は接触ば
ね７の反力により溝１０の終端に押し付けられている。
図示の状態から操作ハンドル１９を図の右方向に旋回さ
せると開閉機構１８が反転して可動接触子３は図の時計
方向に回動し、固定接触子１４から開離する。その状態
でも、接触ばね７には予圧が与えられているため支持ピ
ン４に対する反力はなくならず、可動接触子３はホルダ
１に引き続き保持される。Hereinafter, the present invention will be explained in detail based on FIGS. 1 to 3. Note that parts that are substantially the same as those in the conventional example are given the same reference numerals. Figure 1 shows the movable contact part of a 3-pole circuit breaker.
FIG. 1(A) is a partially broken plan view of the holder, and FIG. 1(B) is a sectional view taken along the line B--B. Also,
Figure 2 shows the shape of the holder in detail.
) is a front view, and FIG. 2(B) is a sectional view taken along line B-B. In FIGS. 1 and 2, reference numeral 1 denotes a holder made of an insulating material (molded resin), which has a substantially rectangular cylindrical shape consisting of side walls 1a on both sides, an upper wall 1b, and a lower wall 1c, and various holders 1 are integrally formed. They are connected to each other by an opening/closing shaft 2. A movable contact 3 is rotatably supported on the holder 1 by a support pin 4, and is rotated counterclockwise in FIG. given contact force. Here, both ends of the support pin 4 passing through the movable contact 3 are inserted into grooves 10 formed in the opposing surfaces of the side wall 1a of the holder 1. 8 is a movable contact, and 9 is a lead wire. As shown in FIG. 2(B), the groove 10 has one end connected to the holder 1.
A slightly diagonally upward lateral groove portion 10a that opens on the rear end surface 1d.
and a vertical groove portion 10b that curves upward from the other end of the horizontal groove portion 10a at right angles thereto. Note that there is a groove 10c below the vertical groove 10b that opens to the lower end surface of the holder 1, but this is due to the structural necessity of the mold for molding the vertical groove 10b, and the structure of the present invention is It's not necessary. Further, a corner of the side wall 1a below the lateral groove 10a has a protrusion 11 that projects to engage the contact spring 5. To assemble the movable contact 3 into the holder 1, place the U-bent part of the contact spring 7 on the top surface of the movable contact 3, insert the support pin 4 into this, and then connect both ends of the support pin 4. It is pushed into the holder 1 from behind while being fitted into the horizontal groove 10a, thereby bending the contact spring 7 and engaging the tips of both legs with the protrusion 11 of the holder 1. As a result, the support pin 4 rises within the vertical groove portion 10b due to the reaction force from the winding portion 7a of the contact spring, and reaches the assembled state shown in FIG. 1 when it abuts the terminal end of the vertical groove portion 10b. That is, in FIG. 1(B), a reaction force in the direction shown by arrow P acts on the support pin 4 from the winding portion 7a of the contact spring 7, and the support pin 4 is pressed against the terminal end of the hook-shaped groove 10. Therefore, the support pin 4 will not come out of the groove 10 even if no special means is taken to prevent it from coming out. In the illustrated embodiment, the groove 10 has an upwardly hooked shape, but it may alternatively have a downwardly hooked shape. Figure 3 shows a circuit breaker (molded case circuit breaker) incorporating the above-mentioned movable contact part, Figure 3 (A) is a plan view with only half the cover removed, and Figure 3 (B) is its top view. FIG. 2 is a cross-sectional view taken along line B=B. In Fig. 3, 12 is a mold case, 13 is a mold cover, and the opening/closing shaft 2 connecting the holder 1 is shown in Fig. 3 (
As shown in A), it is rotatably fitted into the side wall 12a and partition wall 12b of the mold case 12. The current path includes a fixed contact 14 that also serves as a power supply side terminal, a fixed contact 15,
It is formed by the movable contact 8, the movable contactor 3, the lead wire 9, the tripping coil 16a of the electromagnetic disconnecting device 16, and the load side terminal 17. The figure shows the closed state of the circuit breaker, and the movable contact 3 is moved to the fixed contact 14 by the opening/closing mechanism 18 while bending the contact spring 7.
is under pressure. The support pin 4 of the movable contact 3 is pressed against the end of the groove 10 by the reaction force of the contact spring 7. When the operating handle 19 is turned to the right in the figure from the illustrated state, the opening/closing mechanism 18 is reversed and the movable contact 3 is rotated clockwise in the figure and separated from the fixed contact 14. Even in this state, since a preload is applied to the contact spring 7, the reaction force against the support pin 4 does not disappear, and the movable contact 3 continues to be held by the holder 1.
この発明によれば、可動接触子をホルダに支持する支持
ピンが、接触ばねの反力でかぎ形の溝内に保持されるの
で、可動接触子の抜止ピンが不要となり組立が簡単とな
る。また、上記支持ピンは溝の終端に押し付けられてい
るので可動接触子の支持に遊びがなく、回路遮断器の開
閉を通じて可動接触子は常に定位置に安定に保持される
。According to this invention, the support pin that supports the movable contact on the holder is held in the hook-shaped groove by the reaction force of the contact spring, so that a pin to prevent the movable contact from falling out is not required, and assembly is simplified. Further, since the support pin is pressed against the end of the groove, there is no play in supporting the movable contact, and the movable contact is always stably held in a fixed position throughout the opening and closing of the circuit breaker.
第１図（Ａ）はこの発明の実施例における可動接触子部
分をホルダの一部分を破断して示した平面図、第１図（
Ｂ）はそのＢ−Ｂ線に沿う断面図、第２図（Ａ）は第１
図のホルダの正面図、第２図（Ｂ）はそのＢ−Ｂ線に沿
う断面図、第３図（Ａ）は第１図の可動接触子部分を組
み込んだ回路遮断器のカバーを半分だけ取り除いた状態
の平面図、第３図（Ｂ）はそのＢ−Ｂ線に沿う断面図、
第４図（Ａ）は従来の回路遮断器の可動接触子部分の平
面図、第４図（Ｂ）はそのＢ−Ｂ線に沿う断面図である
。
１・・・ホルダ、１ａ・・・側壁、２・・・開閉軸、３
・・・可動接触子、４・・・支持ピン、７・・・接触ば
ね、１０・・・溝、１４・・・固定接触子。
ｈ（１’３
−一一山
第FIG. 1(A) is a plan view showing a movable contact portion in an embodiment of the present invention with a part of the holder cut away; FIG.
B) is a cross-sectional view taken along the line B-B, and Figure 2 (A) is the first cross-sectional view.
The front view of the holder shown in the figure, Figure 2 (B) is a sectional view taken along the line B-B, and Figure 3 (A) shows only half of the cover of the circuit breaker incorporating the movable contact part shown in Figure 1. A plan view of the removed state, FIG. 3 (B) is a cross-sectional view along the line B-B,
FIG. 4(A) is a plan view of a movable contact portion of a conventional circuit breaker, and FIG. 4(B) is a sectional view taken along the line B--B. DESCRIPTION OF SYMBOLS 1... Holder, 1a... Side wall, 2... Opening/closing shaft, 3
... Movable contact, 4... Support pin, 7... Contact spring, 10... Groove, 14... Fixed contact. h(1'3 - 11th mountain
Claims (1)
まれて可動接触子が支持ピンにより支持され、前記支持
ピンに巻き掛けられた捩じりばねからなる接触ばねの一
端が前記ホルダに係合され他端が前記可動接触子に係合
された回路遮断器において、ホルダの側壁の対向面にこ
のホルダの後端面に開放するかぎ形の溝をそれぞれ形成
し、この溝に可動接触子を支持する支持ピンの両端を差
し込むとともに、この支持ピンを接触ばねの反力により
前記溝の終端に押し付けるようにしたことを特徴とする
回路遮断器の可動接触子支持装置。1) A movable contact is sandwiched between the side walls and supported by a support pin in an insulating holder having side walls on both sides, and one end of a contact spring consisting of a torsion spring wound around the support pin is attached to the holder. In the circuit breaker, the other end of which is engaged with the movable contact, hook-shaped grooves that open to the rear end surface of the holder are formed on opposing surfaces of the side walls of the holder, and the movable contact is disposed in the grooves. A movable contact support device for a circuit breaker, characterized in that both ends of a support pin supporting the contact are inserted and the support pin is pressed against the end of the groove by the reaction force of a contact spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63258890A JPH0828174B2 (en) | 1988-10-14 | 1988-10-14 | Movable contact support device for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63258890A JPH0828174B2 (en) | 1988-10-14 | 1988-10-14 | Movable contact support device for circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02106841A true JPH02106841A (en) | 1990-04-18 |
| JPH0828174B2 JPH0828174B2 (en) | 1996-03-21 |
Family
ID=17326452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63258890A Expired - Lifetime JPH0828174B2 (en) | 1988-10-14 | 1988-10-14 | Movable contact support device for circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0828174B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0639846A1 (en) * | 1993-08-19 | 1995-02-22 | ABBPATENT GmbH | Switch spindle for an installation switch |
| JP2010010068A (en) * | 2008-06-30 | 2010-01-14 | Panasonic Electric Works Denro Co Ltd | Circuit breaker |
| ITMI20090011A1 (en) * | 2009-01-08 | 2010-07-09 | Abb Spa | MOBILE CREW FOR A LOW VOLTAGE INTERRUPT DEVICE AND INTERRUPTIVE DEVICE INCLUDING SUCH MOBILE CREW. |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6267439U (en) * | 1985-10-17 | 1987-04-27 |
-
1988
- 1988-10-14 JP JP63258890A patent/JPH0828174B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6267439U (en) * | 1985-10-17 | 1987-04-27 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0639846A1 (en) * | 1993-08-19 | 1995-02-22 | ABBPATENT GmbH | Switch spindle for an installation switch |
| JP2010010068A (en) * | 2008-06-30 | 2010-01-14 | Panasonic Electric Works Denro Co Ltd | Circuit breaker |
| ITMI20090011A1 (en) * | 2009-01-08 | 2010-07-09 | Abb Spa | MOBILE CREW FOR A LOW VOLTAGE INTERRUPT DEVICE AND INTERRUPTIVE DEVICE INCLUDING SUCH MOBILE CREW. |
| WO2010079106A1 (en) * | 2009-01-08 | 2010-07-15 | Abb S.P.A. | Moving element for a low voltage switching device and switching device comprising this moving element |
| US9099257B2 (en) | 2009-01-08 | 2015-08-04 | Abb S.P.A. | Moving element for a low voltage switching device and switching device comprising this moving element |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0828174B2 (en) | 1996-03-21 |
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