JPH0466035U

JPH0466035U -

Info

Publication number: JPH0466035U
Application number: JP10834090U
Authority: JP
Priority date: 1990-10-15
Filing date: 1990-10-15
Publication date: 1992-06-10

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す一部外観斜
視図、第２図は従来のものを示す外観斜視図、第
３図は第２図の線−の要部断面図、第４図は
第３図の内部構造を示す要部斜視図、第５図は第
４図の釈放形電磁装置を示す斜視図、第６図は第
５図を反対側からみた斜視図、第７図は第５図の
正面図、第８図は第７図の上面図、第９図は第８
図の線−の断面図、第１０図はスライダーを
外した状態を示す正面図、第１１図は第１０図の
上面図、第１２図はスライダーの上面図、第１３
図は第１２図を上からみた図、第１４図は第１３
図の線−の断面図、第１５図はスライダ
ーとボタンホルダとを外した状態を示す正面図、
第１６図は第１５図の上面図、第１７図はボタン
ホルダの斜視図、第１８図は第７図から釈放位置
に動作した状態を示す正面図、第１９図は漏電遮
断器の回路およびそのテスト回路を概略的に示す
図である。図において、１は遮断器ケース、１Ａは表示面
、３は釈放形電磁装置、１０はテストボタン、１
０ｂはテストボタンの頭部、３３は主回路、３４
は開閉接点、３５は零相変流器、３８は引外しコ
イルを示す。なお、各図中同一符号は同一または
相当部分を示す。 Fig. 1 is a partial external perspective view showing an embodiment of this invention, Fig. 2 is an external perspective view showing a conventional one, Fig. 3 is a sectional view of the main part taken along the line - in Fig. 2, and Fig. 4. is a perspective view of the main part showing the internal structure of FIG. 3, FIG. 5 is a perspective view of the release type electromagnetic device shown in FIG. 4, FIG. 6 is a perspective view of FIG. Figure 5 is a front view, Figure 8 is a top view of Figure 7, Figure 9 is a top view of Figure 8.
10 is a front view showing the state in which the slider is removed; FIG. 11 is a top view of FIG. 10; FIG. 12 is a top view of the slider;
The figure is a top view of figure 12, and figure 14 is a view of figure 13.
15 is a front view showing the state in which the slider and button holder are removed,
Fig. 16 is a top view of Fig. 15, Fig. 17 is a perspective view of the button holder, Fig. 18 is a front view showing the state in which the button holder has been moved to the release position from Fig. 7, and Fig. 19 shows the circuit of the earth leakage breaker and FIG. 2 is a diagram schematically showing the test circuit. In the figure, 1 is a circuit breaker case, 1A is a display surface, 3 is a release type electromagnetic device, 10 is a test button, 1
0b is the head of the test button, 33 is the main circuit, 34
35 is a zero-phase current transformer, and 38 is a tripping coil. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims

[Claims for Utility Model Registration] A display surface formed on the front of a circuit breaker case, a zero-phase current transformer located inside the circuit breaker case for detecting leakage current in the main circuit, and this zero-phase current transformer. An earth leakage interrupter equipped with a tripping coil that is energized to open the switching contacts of the main circuit when an output is generated in the device, and a test button whose head protrudes from the test button hole on the display surface and is operated by pushing the button. 1. An earth leakage breaker, characterized in that a groove extending laterally from the test button hole is provided in the display surface, and the head of the test button does not protrude from the display surface.