EARTH-LEAKAGE CIRCUIT BREAKER

The invention refers to an earth-leakage circuit breaker, on whose from a dust cover also sum current transformer, cause reached through for a manual control organ überdeektem base and latch are arranged and its base takes up contact levers subjected to a control shaft and a feather/spring, other end of pieces of switching contact is arranged, also at a rail fastened into an external guide plate of a delete sheet metal pile ignoring stationary Kontaktstücken cooperates in each case and with one reached through to the base. Such earth-leakage circuit breakers are on the market. In particular earth-leakage circuit breakers are well-known, on their base sum current transformer, cause and latch are arranged and their base of a Schaltwalze operated switching contacts take up (DE-AS 1173175 and 1563671). Earth-leakage circuit breakers were built in the course of the years increasingly more urgently and smaller, in order to accommodate it into distributions space saving. It opposes these efforts among other things that inevitable tons! eranzen with plastic housings complex precautions require, in order between the manual control lever and the housing grS ere column as the safety regulations permit, to avoid. IS of the invention is the basis the task to develop an compact earth-leakage circuit breaker low and adjust tolerances nevertheless. The solution of the described task is obtained thereby, a) that in each case the contact lever at the base kippbe eglich pushes away and that the rail on their a side leads to a connecting terminal and on its other side to a delete sheet metal pile, which is arranged under the connecting terminal b) through that reached to the base a two-piece piece of seals is locked, whose first part forms an admission, apart from which a smaller reached through remains and in the base is einrastbar trained, and whose second part reached the remaining through covered and a clamping shoulder to the first part exhibits c) and that the dust cover of the switch housing by means of centring nose between camp plates of the latch, u-shaped in the profile, which fastens to its foot is, intervenes. By pieces of switching contact, which are arranged at a lever tilt-mobile fallen in each case, a reduction of the torque necessary to open the contacts lets itself reach regarding the Schaltwalze. Thus the latch can be kept weaker and smaller and be contributed in such a way to the compact building method. It comes then to carrying that the delete sheet metals under the connecting terminal in approximately parallel to the basis of the earth-leakage circuit breaker can be arranged, whereby blown out hot gases endanger neither the range of the connecting terminal nor the mounting rail under the basis of the earth-leakage circuit breaker. It reached through, to obtain short routings to the base, which is locked by a two-piece piece of seals, makes possible what supports the compact and low structure of the earth-leakage circuit breaker. In order to guarantee despite the compact structure by manufacturing tolerances the working reliability for the earth-leakage circuit breaker, the dust cover of the switch housing intervenes by means of centring nose between camp plates of the latch. Thus it is guaranteed that between manual control grasp and plastic housing also with usual tolerances only small permissible column can occur. The contact lever subjecting feather/spring does not only produce the kiss pressure, but it serves at the same time as switching feather/spring. By the arrangement of the delete sheet metals under a connecting terminal and by training as building group with the fixed contact the manufacturing is facilitated and saved place. A further substantial advantage is in that a further reached an installing through in the base of the earth-leakage circuit breaker is facilitated and a particularly trained piece of seals locked surely. This piece of seals undertakes at the same time the function to specify lines regulatorily. Short routings can be obtained. The dust cover of the housing knows in particular a hollow also reached through for the HandbeSO transacting organ of the latch to exhibit, in order to protect it from lateral effects. The earth-leakage circuit breaker is to be described on the basis a remark example shown roughly schematically in the designs more near: In Fig.1 the earth-leakage circuit breaker is shown after a cut perpendicularly to the Schaltwalze. In Fig.2 the earth-leakage circuit breaker from the side is seen, partly broken open, shown. In Fig.8 the supervision is represented. In Fig.4 the earth-leakage circuit breaker of the face is illustrated at the manual control organ. Into the Fig.5 to 7 a part of the two-piece Dichtungsstüekes of the earth-leakage circuit breaker in larger yardstick in opinion is toward the Schaltwalze, from above, and/or represented from the side. The earth-leakage circuit breaker after Fig.l points mobile pieces of switching contact --i-- up, those in each case at a contact lever --2-- are arranged. The contact lever --2-- supports itself tilt-mobile at the base at the retaining wall --4-- off. On its a side is the contact lever --2-- of a feather/spring --5-- subjected, which pushes away as compression spring at the lever. Beyond the support point is the piece of switching contact --i-- arranged. To this the stationary Kontaktstück is opposite --6-- at a run would seem --7--arranged. The rail is on their a side with a connecting terminal --8-- electrically connected. On its other side the rail goes --7-- into an external delete sheet metal and/or a guide plate --9-- a delete sheet metal pile --i0-- over. Connecting terminal --8--, Rail --7-- and delete sheet metal piles --i0-- leave themselves as building group would drive out. By the delete sheet metals of the delete sheet metal pile running to the side --10-- can from the blow-out port --ii-- withdrawing switching gases neither the connecting terminal --8-- still one to the basis --12-- mounting rail present endanger. The represented contact lever --2-- and further contact levers for further poles become from the Schaltwalze --18--, their meant axle also --14-- is designated, by drivers --15-- operated. The torque necessary for the Kontaktöffnung is by the support of the contact lever --2-- regarding the Schaltwalze --IS-- reduction. Reached through to the base --8-- a part is locked by a two-piece piece of seals, its --17--an admission u-shaped in the profile --18-- forms. Beside this admission --18-- remains a smaller reached through, to that a further part --20-- is covered. The part --20-- a clamping shoulder forms --21-- to the first part --17--the piece of seals --16--. Between the clamping shoulders --21-- the parts --17 and 20-- can lines --22-- arranged to be clamped. In the admission --18-- a line connection between the lines lets itself --22 and 23-- accommodate. The lines can in the admission --18-- clamped werSD that. By such a structure one obtains short routings and a good sealing of the switching contacts in connection with the described arrangement of the construction units to the transducer area. The line --23-- is by the sum current transformer --24-- passed through and with the other connecting terminal --8a-- electrically connected. Under the dust cover --25-- the switch housing are perpendicular to the indication level except $5 the sum current transformer --24-- the cause and the latch as well as parts of the inspection fixture arranged. For further construction units remains under the connecting terminal --8a-- as well as the neighbouring connecting terminals area. At the basis --12-- is a usual snatching mounting plate --28-- trained as lining up on mounting rails. As is to be seen from Fig.2 in detail, the dust cover forms --25-- a centring nose --26--, those between the camp plate --27-- the Sehaltschlosses --28-- intervenes. The latch --28-- is only fastened to his foot. The latch --28-- its end position finds by guidance at the centring nose --26--. Thus it is guaranteed that between manual control organ --29-- and develop for the dust cover of the switch housing despite large tolerance with plastic parts only small defined column of permissible order of magnitude. The dust cover --25-- a hollow forms in the remark example --26-- with reached through for the manual control organ --29--. The test key --80-- can be trained, how it also from Fig.3 to be seen is, laminar and squarely. The connecting terminals --8 and 8a-- are certain to attaching the center leader and of three phase conductors. The second part of the two-piece piece of seals --16--, the part --20--, is increased represented in Fig.5 in the opinion according to Fig.1. Also this part can by means of rest feet --31-- just like the first part --17-- the piece of seals --16--, after using in the base rest. The rest feet --31-- are to be seen from Fig.7.