HV Harnesses for the All-Electric Lilium


Rosenberger, one of the leading connector suppliers worldwide, provides the high-voltage electrical harness systems for the first all-electric vertical take-off and landing (“eVTOL”) jet developed by Lilium N.V. Rosenberger is the 3rd party of the collaboration between Lilium and its design and build partner for electrical wiring integration, GKN Aerospace.


The high-voltage electrical harnesses represent a critical system on the Lilium Jet. The harness system, for which Lilium has been granted patents in the U.S. and Europe, is essential for the Lilium Jet’s safety critical power distribution architecture. Designed for safety and redundancy, the harnesses will act as the aircraft’s main electrical arteries, distributing power from the ten batteries, located on the sides of the fuselage, to the jet propulsion units, embedded into the aircraft’s main wings and canards. The harness system has been optimized for high performance at low weight enabling a voltage of more than 900 V.

Marc Käumle, Executive Vice President Business Area Interconnect, Rosenberger said: “Electric aviation is on its way, and we are pleased to be a part of it. We have been designing and manufacturing connectors and cable assemblies over many years for a variety of aviation applications. We look forward to extending our capabilities into the eVTOL space as part of the Lilium Jet team.”

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