Flush-mounted installation box / hollow wall socket / concrete

Efficient systems.

Flush-mounted boxes have additional ribs on the side of the box. The boxes support themselves in the hole of the wall. It stays put by itself without being plastered in. The cable tie principle makes the installation of the hollow wall box particularly simple and time-saving. Amazing also is the large wiring space and the numerous openings for connection. Convenient is the height-adjustable and rotatable plaster compensation ring. This enables the height to be adjusted if the hole is too deep or the plaster too thick. Also the screws can be re-positioned correctly if the box is twisted.


The advantages of the RFID chips are as follows.

  • Flush-mounted boxes are easy to locate
  • When installing boxes, several or larger combinations can be installed of which not all are opened immediately. The advantage is that a switch combination is easy to extend since the boxes are already installed. The plaster settles in the spacious recess of the cover so that the boxes that are not used disappear from view after plastering.
  • Not only boxes of one combination can remain closed. The standard mounting height results in fixed paths which can be searched for with the scanner to find the combinations that have not been opened. This is practical, for example, if additional socket outlets or data connections are to be provided in the future, to adapt the electrical installation to later modifications such as re-designing or totally new use of the room.

Installation made easy.

01 Flush-mounted boxes can be easily connected with each other. First the cable feed-through must be opened if the flush-mounted boxes are to be wired together. The connection can be loosened again.

02 The top lug serves as orientation when inserting the box. It must rest on the stonework.

03 The lateral lamella fix the box in the wall. Since the milled hole is a little smaller than the diameter of the flush-mounted box including lamella, they are slightly bent and in this way provide the necessary stability.

04 The screws of the device are used to fix the insert above the support ring. This is a combination of TORX screws and slotted head screws (TORX = T3 and slot = 0.3 x 3.0). TORX screws are particularly suited for use with cordless screw drivers and ensure reliable coupling of force between bit and screws. If a Torx bit or Torx screwdriver is not available, a slot-head screwdriver can be used as alternative.

05 The rotatable plaster compensation ring can also be used to align the screws of the device. Especially when the flush-mounted box is installed individually and not in a combination, it can happen that it is installed slightly twisted. The plaster compensation ring can be used to turn the screws to the desired position without having to cope with an appreciable difference in height.

06 At the point of delivery the bottom of the flush-mounted box is pressed out, to obtain an effective depth of 56 mm. The bottom can be easily pressed in. This results in an effective depth of 45 mm (without the plaster compensation ring). Depending on the installation requirements, one always has the suitable flush-mounted box available. The flush-mounted box has five M20 and three M25 pipe inlets.

07 The integrated plaster compensation ring makes installation easy. The plaster compensation ring can be used for the alignment of the flush-mounted box almost independent of the thickness of the plaster. At the same time, it increases the effective depth of the switch box around the turned-out plaster compensation ring. It can be turned out a maximum of 11 mm. This results in a maximum depth of 67 mm when the bottom is pressed out.

08 The milled hole for these hollow-wall boxes amounts to 74 mm. The slightly larger diameter has a noticeably positive effect during installation because the space available for connecting is slightly larger.

09 The hollow-wall box is pressed toward the front. This presses the lateral slider toward the back and pulls the retaining clamp with it.

10 When the hollow-wall box has been fully installed in the wall, it is fixed by pulling on the sliders.

11 The projecting plastic part can be removed in a trice with a quarter turn.


Flush-mounted socket, stonework.

The box with adjustable bottom and height-adjustable ring allows installation depths of 46, 56 and 67 mm with only one box.


Inserting the flush-mounted stonework socket.

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Inserting the flush-mounted hollow wall socket.

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Flush-mounted socket, hollow wall.

The mounting sets are suitable for plaster board and gypsum fibre boards of 9.5 mm, 10 mm and 12.5 mm thickness.


Adjustable floor depth for the flush-mounted stonework socket.

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Flush-mounted socket, concrete.

The flush-mounted socket offers numerous connecting options for different pipe diameters. And mounting without special tools is possible.


Easy to locate also below the plaster.

The covers of the flush-mounted boxes are fitted with RFID stick-on labels - to make locating them easier after plastering. The RFID detector detects the RFID stick-on label also below the plaster.


The new Busch-Jaeger mounting sets.

For switch ranges Busch-axcent® flat and carat® flat. They can be used to install cover frames flat on the wall. Possible are combinations with 1gang to 5gang frames. For perfectly designed living space. Equally convincing is the easy and time-saving installation.