DE2204418B1 - Earthing contact plug with residual current circuit breaker - Google Patents

Description

inventive earthing contact plug with residual current circuit breaker an optimal center of gravity.

An embodiment of the invention is described with reference to the drawing. It shows

Fig. 1 shows a safety plug with residual current protection circuit in section at plan view and

F i g. 2 in section at side view.

As shown in FIG. 1, the housing 1 consists of the protective contact plug with residual current circuit breaker on the network side of a cylindrical attachment part 2, in which the summation current transformer 3 is housed is. The front part of the housing has individual chambers 4 for receiving additional ones Components such as switch contacts 5, trigger 6 and switch lock 7. Located in a separate chamber 8 the threshold-controlled resistor 9, which is connected directly to the protective conductor winding 10 of the summation current transformer 3 is connected. The housing I is on the front and on the side surfaces of a hood II completed, which is fastened by means of screws 12 on the front. Accessible from the outside are only the operating elements 13. With 20, the plug contacts are designated.

From FIG. 2 it can be seen that the housing 1 of the protective contact plug with residual current circuit breaker from an upper part 14 and a lower part

if IS exists. The interface 16 between the two Sharing runs horizontally and in the center of the connector. It can also be seen that the as a retaining clip trained protective contact 17 engages in recesses of the upper 14 and lower part 15 and thus holds both parts together within the cylindrical attachment part 2. Plug contacts 20 and device connection cable 21 are approximately at right angles to each other.

1 sheet of drawings

COPY

Claims (2)

1 2 user side the movable device connection cable claims: is inserted into the connector housing. Now it is necessary that with such protective 1. Earthing contact plug with fault current contact plugs that due to the additional protective circuit, that on the network side as the 5 minimum weight of the components of the residual current circuit breakers Two-pole wall plug with protective conductor caused the torque on the relevant contacts is designed, and in which the socket is kept as low as possible, In front of the housing, the components of a are housed, current protection circuit around a device for the operator on the front housing part is io protection of people, is a good and voltage elements are attached and in the rear reliable contact between plug and Housing part a movable device connection cable socket mandatory requirement. device is introduced, and the best made of plastic The invention is therefore based on the object The housing of the protective contact plug mains a protective contact plug with fault current protection side is designed as a cylindrical attachment part, 15 to realize the circuit using characterized in that inside the particularly small components for the fault current cylinders Attachment part (2) recesses for the protective circuit an appropriate arrangement and accommodation of a summation current transformer (3) favorable weight distribution of the components in are available, and that the front part of a connector housing is particularly compact design Housing (1) is cuboid and allows 20 with a shallow depth and thus the safety inside individual chambers (4) to accommodate the need for clearance with such protective devices Other components, such as switching contacts (5), fully take into account. solver (6) and switch lock (7), and that this object is according to the invention in the the walls of these chambers (4) with breakthrough protective contact plugs as a result Chen are provided for the line routing, and solved 25 that the inside of the cylindrical extension part Ausdaß the entire housing (1) in such a way in a recesses to accommodate a total flow wall upper- (14) and lower part (15) is divided into two parts, that lers are present, and that the part sitting in front the cut surface (16) is horizontal and in that of the housing is cuboid and inside The center of the connector. individual chambers to accommodate additional components 2. Protective contact plug with fault current 30 elements, such as switch contacts, release and switch protection circuit according to claim 1, characterized in that the walls of these chambers indicate that the upper (14) and lower part are provided with openings for the line routing (15 ) of the housing (1) in a known manner in the zy, and that the entire housing in such a way in a cylindrical extension part (2) with recesses upper and lower part is divided that the cut, 19) is provided in which the as a retaining clip - 35 surface runs horizontally and in the middle of the connector,
mer trained protective contact (17) engages. Furthermore, the upper and lower part of the Housing provided in a known manner in the cylindrical extension part with recesses into which the as Retaining clip trained protective contact engages. 40 Also in a particularly advantageous form of the subject matter of the invention, in which the protective conductor ■ ■ in this way on one or more connected in series The invention relates to a Schutzkon primary windings of the summation current transformer angetaktverbind with residual current protection circuit, which is connected to that the total number of turns at least Network side as at least two-pole wall plug 45 is twice as large as the number of turns of one Ker is designed with protective conductor contacts, and the primary windings for the connection of a that in the housing in front of the component outer conductor or the neutral conductor, after which in the glue a fault current protection circuit under the protective conductor a switching contact and dabracht are, with the control elements arranged on the front housing part according to a threshold-controlled resistor and is in the rear 50 net, the summation current transformer is the heaviest Housing part a movable device connection line component in the network-side, cylindrical attachment part is introduced, and housed the existing plastic Ge of the housing and are the other Housing of the protective contact plug on the mains side as cylindrical components in the chambers provided for them drical attachment part is formed. arranged in the front part of the housing. Various types are known, an error 55 In a further embodiment, the threshold current protection circuit value-controlled in a safety plug. Resistance in the cable run of the to be included. So is a plug with a built-in protective conductor within its chamber between ten residual current circuit breaker according to German law, the switching contact and the summation current transformer to call utility model 6 807 038, which is arranged on the network. side as a preferably two-pole wall plug with 60 The advantages of the protective con protective conductor contacts according to the invention is designed, in which in the clock plug with residual current protection circuit bestedvorsitzenden, Larger connector housings are known in particular in that the housing of the contactor Components of a residual current circuit breaker, contact plug with a compartment division, versewie Summation current transformer, release, switch lock, which allows the components of the fault and Switching contacts are housed, with the 65 current protection circuit not only from circuit technicians Front of the housing of the switch-on toggle see reasons to be expedient, but rather and the test button for functional testing of the protection and also a particularly favorable weight connection are arranged and can be reached on the distribution in the connector. This gives the