NVL72 MGX busbar current rating (NVIDIA/OCP): a deeper-profile, ORV3-width bar at roughly 2x prior ampacity
1,400 Aobserved
| Value kind | observed — Reported measurements, counts, and specifications keep the precision and scope stated by their source; an exact specification is not treated as a range. |
|---|---|
| Scope | NVIDIA's OCP contribution states a 1,400 A bus bar and 1RU liquid-cooled compute and switch trays. It does not establish a two-feed circuit: a supply and its return carry the same current, so 1,400 A at 48 V is ~67 kW delivered. A ~132 kW continuous rack implies ~2,750 A of aggregate circuit current from parallel feeds or distributed injection; take that topology from the OEM power-distribution drawing. |
| As of | 2025 |
| Source | NVIDIA (GB200 NVL72 → OCP) |
| Review | checking…review by 2026-11-23 · standard cadence |
| Recorded changes | last 2026-07-10 |
| Claim id | nvl72-per-busbar-rating-paired-busbars-feed-132 |
Where the guide uses it
← Full numbers register — every date-stamped figure in the guide, with revision history.