Abstract: In a connection device with a number of spaced and through-connected electrical contacts, the contacts are through-connected by means of band-shaped flexible printed conductor foil, whereby at least partially electrically separable contacts are through-connected via a number of at least partially parallel printed conductors on the printed conductor foil and whereby printed conductor sections create direct plugged contacts tacts in the plug areas of modular plugging and/or socket means of the connection device.

Abstract: A distribution frame for low-current conductors is made up of a multiplicity of channels whose side and rear walls are perforated to allow interconnection of the channels and whose front walls have slots to accommodate lugs of circuit units which are mounted on the frame. The front walls define an opening between them which is flanked by respective inwardly extending flanges formed with rearwardly angled flanks carrying cable ridges between the tongues of which the conductors can be fitted.

Abstract: A tool for making a plug connection between a plastic tube and a plastic case for electrical conductors has a cutting head which is designed to encircle the shell of a tube and which can be turned relatively to the tube. Extending into the interior of the cutting head is a first knife for chamfering the end of the tube as well as a second knife, at a distance from the first, for cutting a fircone-shaped rib in the shell of the tube. The cutting head is firmly connected to one end of a bar-shaped handle, which is provided at its other end with a bore head for making a hole in the wall of the case. The bore head comprises a cutter on an end of a steel hollow cylinder connected at its other end to the handle and projecting out from its respective front end.