What it is
Vertiv launched a double-stack configuration of its PowerBar Track busway designed for high-density AI data centers. The system delivers 2000 A (UL 857) or 2500 A (IEC 61439-6), uses overhead distribution to preserve white space, and features open-rail architecture allowing tap-off points to be added or relocated under live load with mechanical/electrical interlocks.
Why it matters
Rising AI power density forces operators to choose between underfloor cable sprawl and overhead busway that preserves rackable floor area. Facilities managers need distribution systems that scale without major structural rework or downtime; live reconfiguration and modular tap-offs reduce change-order friction and maintain SLA uptime during cluster expansions.
Evidence from source:
- Supports configurations up to 2000 A under UL 857 and 2500 A under IEC 61439-6, with copper or aluminum conductors.
- Open-rail architecture allows tap-off boxes to be installed or relocated anywhere along the busway without interrupting power supply to running equipment.
- Each tap-off connection includes mechanical and electrical interlocks designed to prevent unsafe installation or removal during operation; optional integrated metering provides real-time energy measurement.
Links
- Canonical source: https://datacenter-technology.com/news/107620-high-capacity-busway-power-distribution-for-ai-data-centers
- Player: /players/other/
- Topic: /topics/pathways-install/
- Topic: /topics/power-quality-surge/
Open questions
- What are the actual installation labor-hour and schedule differences between double-stack busway and traditional underfloor feeders for a 5 MW AI pod?
- How do integrated metering tap-offs compare in cost and commissioning time to separate branch-circuit monitoring for capacity planning?