IN Brief:
- HARTING specifies a 100A, 480V AC power whip for the NVIDIA Vera Rubin NVL72 3RU, 110kW power shelf.
- A second 157A, 800V DC cable assembly is described for a subsequent high-voltage rack architecture.
- Both cable assemblies are due to be exhibited at the OCP Global Summit 2026.
HARTING has joined the NVIDIA MGX ecosystem as a power system component provider, supplying a 100A, 480V AC cable assembly for the Vera Rubin NVL72 platform and outlining a 157A, 800V DC assembly for a subsequent generation of rack infrastructure. The German manufacturer’s involvement concerns the physical distribution of electricity to densely populated compute equipment, rather than the power conversion electronics within the rack.
The 480V AC product is specified for NVIDIA’s Vera Rubin NVL72 three-rack-unit (3RU), 110kW power shelf. HARTING calls these assemblies power whips: cables and terminations that deliver electricity from the building’s distribution equipment to rack-level power inputs. Their electrical rating, mechanical termination and routing become increasingly important as more power is concentrated in a limited amount of space. The quoted 110kW figure describes the shelf, however, and does not establish the capacity of a single 100A cable without knowing its feed arrangement.
Alongside that AC connection, HARTING has described a next-generation 157A, 800V DC power whip linking power infrastructure with the compute rack. The description establishes an intended connection format and electrical ratings; the company has not published a deployment timetable, connector qualification data or conductor dimensions for the DC assembly. The DC-to-DC designation refers here to the cable connection between DC systems, not an electronic converter that changes one DC voltage to another.
Raising a distribution voltage can reduce the current necessary to transmit a particular amount of electrical power, allowing changes in conductor size and resistive losses to be considered. The comparison needs care, because AC power also depends on phase configuration and power factor, while losses depend on the complete wiring path and operating conditions. The current ratings attached to HARTING’s two assemblies therefore cannot be used alone to calculate the efficiency improvement between the platforms.
Fault handling becomes a different design exercise when a distribution path moves to high-voltage DC. Alternating current repeatedly crosses zero, helping properly designed protective devices interrupt an arc; direct current has no equivalent natural current zero. Switchgear, disconnects and insulation must consequently be selected for their specified DC voltage and prospective fault current, with connector creepage, clearance and service procedures considered as part of the installation. No system-level safety certification or fault-interruption performance has been disclosed for these particular HARTING assemblies.
The incoming power connection must operate with upstream protection, redundant feeds and the conversion stages serving the compute modules. Those functions determine the loads and fault conditions imposed on a cable assembly, even though they sit outside the connector itself. In recent 800V rack conversion development, semiconductor switches and controllers transform voltage; HARTING’s components provide the physical power connection.
HARTING is applying its experience with high-current industrial connectivity, including railway and automotive applications, to this data centre programme. Such experience can inform contact design, manufacturing and mechanical robustness, yet a rack environment presents particular constraints around cable bend radius, accessibility, thermal loading and maintenance. Qualification against the finished rack’s electrical and mechanical interfaces remains essential; familiarity with another industry does not remove those requirements.
NVIDIA’s MGX supplier ecosystem gives equipment manufacturers a defined route to select power-connection components compatible with the platform. HARTING’s specified 480V AC assembly addresses the Vera Rubin NVL72 power shelf, while the 800V DC interface belongs to a developing architecture. Neither assembly has an announced shipment volume or installation count.
Philip Harting, chairman of the board and chief executive of HARTING Technology Group, associated the partnership with the company’s experience in high-power connectivity. Christian Gysin, the group’s chief technology officer and executive board member, highlighted the industry’s transition towards 800V DC distribution. Both products are due to be shown at the HARTING stand during the OCP Global Summit 2026, alongside the company’s participation in the NVIDIA AI Factory MGX ecosystem display. Detailed interface and installation documentation will determine how the assemblies can subsequently be specified in production racks.
