Enclosed conductor system KBH

Crane systems are of fundamental importance in many production processes. Only with their help can heavy loads be lifted and moved. To be able to perform this task reliably at all times, the machines depend on a robust power supply.

VAHLE has developed the contact-protected enclosed conductor system KBH especially for standard cranes in then the low- to mid-power range. In this system, the poles for the power supply are embedded in a lightweight but stable hollow-chamber plastic profile. The current collectors are guided therein by ball bearings and can thus compensate for even large tolerances on the track.

The compact and inexpensive KBH enclosed conductor system has been the market standard in the "ow- to mid-power range for many years. It is available with four- or five-pole assignment and with different conductor cross-sections. This allows high rated currents of up to 200 amperes to be transmitted. KBH is suitable for both indoor and outdoor applications and can be equipped with an optional heating wire that prevents the formation of frost on the contact bars.

Other advantages of the KBH enclosed conductor system include short delivery times and easy installation. The clip technology for suspensions, connection caps, connectors and feeders also enables simple maintenance and repair processes, ensuring that the system has a high level of availability. In addition, the VAHLE APOS Magnetic positioning system can be fully integrated into the KBH housing.

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Order | Project planning
3D data and specifications


  • Robust and inexpensive system
  • Very compact dimensions
  • IP23 contact protected (with sealing lip IP24)
  • APOS Magnetic positioning system can be fully integrated
  • Short delivery times and fast assembly due to prefabricated parts
  • Suitable for applications in the deep-freeze range down to -30 °C
  • UL and CE approval


Technical data - Electrical
Rated current 63-200 A
Conductor cross section 10-70 mm2
Rated voltage with protective conductor 690 V (UL 600 V)
Number of poles 4-5
Conductor material Copper
Protection class IP23 (IP 24 with sealing lip)
Technical data - Mechanical
Max. travel speed 250 m/min
Max. suspension distance 2 m
Technical data - System
Max. system length without expansion section 250 m
Standard conductor line length 4 m
Operating conditions
Operating temperature -30°C to +60°C
Flammability (insulating housing) flame retardant, self-extinguishing, UL94VO
Application Indoor and outdoor




  • Plant project planning and consulting
  • Installation planning
  • Installation and commissioning
  • Maintenance, repair and inspections
  • Modernization of existing plants (retrofit)
  • Multi-level training options
  • Project planning in the Customer Hub