Catalogue (1.3 MB)

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Tel:  +49 40/538092-50
Fax: +49 40/538092-85

Slip Ring PRS

  • Aluminium housing
  • 6 to 15 rings
  • Mixed executions
  • Option: gold and silver coated rings

Technical Characteristics

Protection degreeIP 55
Nominal currents20A / 30A / 50A
Nominal voltage660V AC/DC
Brush material brass / copper graphite
Operating temperature-20°C to +60°C
Max. rotation speed30 rotations/min

The characteristic feature of our slip ring PRS can be seen in the robust housing. It can be adopted flexible to the particular requirements by its different cover heights. Various materials for rings and brushes allow the transmission of high electrical power, signals and data for different BUS-systems.

The bottom of the housing is made of aluminium; the cover is made of steel. Overall three different cover heights are available which are chosen regarding to the number of rings demanded.


The cable entries and exits are integrated both as axial connection. The division of rotator and stator happens in the centre of the base part. In a radius of 75mm the rotating central pipe is located with the above inside the housing mounted rings on it. The brushes are fixed on top of the base part. The simple construction of PRS allows the customer to define the rotating and non-rotating part, or even to define both parts as rotating.

The cable exit of the brushes is realized by an axial cable gland at the bottom side of the base. The cables of the rings are led through the central pipe with an inner diameter of 42mm.

Three different module sizes with particular power ratings of 20A, 30A and 50A are available. Rings and brushes, as standardversions made of brass or copper-graphite, can be covered with a silver or gold coating. This leads to a higher contact performance and influences the abrasion characteristics in a positive way.

The combination of different module sizes or different materials of brushes and rings makes PRS to a robust and multifunctional slip ring, which can be used for a big range of applications as an economic solution.