Server Technology BUS-44-0400V3-30 OCP ORV3 44OU 400A Busbar

Overview

The BUS-44-0400V3-30 is a 400A busbar built to the Open Compute Project ORV3 (Open Rack V3) specification, sized for a 44OU rack frame. This is the power backbone that OCP-standard hyperscale and enterprise rack deployments run on — replacing conventional PDU-and-whip wiring with a single vertical busbar that rack-mounted power shelves and IT gear tap into directly. Finished in smooth sandtex white, the BUS-44-0400V3-30 (often searched as BUS 44 0400V3 30) is designed to sit inside the rack frame rather than as an external accessory, so it factors directly into how you plan power zone density across a row.

Key Features

• 400A rated capacity: a single busbar this size supports substantially higher aggregate IT load than a traditional multi-PDU whip setup, which matters when you're provisioning a rack for dense compute or storage sleds rather than mixed general-purpose gear.
• OCP ORV3 form factor: built to the Open Rack V3 standard, so it is intended for racks and power shelves already built to that same specification — this is not a universal-fit busbar, and mixing standards on the same frame is not something to guess at in the field.
• 44OU length: matched to a 44OU rack frame, giving power distribution reach across nearly the full usable height of the rack without splicing or extending the run.
• Smooth sandtex white finish: a durable powder-style finish that resists marking during installation and handling — relevant in data center environments where racks get touched constantly during commissioning and moves/adds/changes.
• 25 lb shipping weight: a single technician can handle and position the unit during rack build-out without rigging, which keeps installation labor and scheduling simpler than heavier busbar or PDU alternatives.

Integration & Compatibility

Because the BUS-44-0400V3-30 is built to the OCP ORV3 specification, it is intended to integrate with ORV3-compliant rack frames and power shelves rather than legacy 19-inch PDU infrastructure. If you're standardizing a row on Server Technology power distribution, confirm every rack in that row is spec'd for ORV3 before ordering — pairing a 400A ORV3 busbar with a non-ORV3 frame is not a supported configuration based on available documentation. For teams still finalizing rack power architecture, it's worth reviewing a power distribution planning guide before locking in busbar amperage and rack count, since busbar capacity should be sized against actual projected IT load, not just the largest number available. This busbar sits within the broader power distribution category alongside rack PDUs and power shelves — if your build isn't OCP-standard, a conventional metered or switched PDU line is the more direct fit. For facilities running mixed rack standards, pairing ORV3 zones with standard 19-inch equipment racks elsewhere in the same room is common, but keep the two power architectures documented separately to avoid confusion during commissioning.

Frequently Asked Questions

Q: What rack standard is the BUS-44-0400V3-30 built for?

A: It is built to the Open Compute Project ORV3 (Open Rack V3) specification, sized for a 44OU rack frame.

Q: What is the amperage rating of the BUS-44-0400V3-30?

A: It is rated for 400A.

Q: How much does the BUS-44-0400V3-30 weigh for shipping and installation planning?

A: Shipping weight is 25 lbs.

Q: What finish does the BUS-44-0400V3-30 come in?

A: A smooth sandtex white finish.

Q: Will the BUS-44-0400V3-30 fit a standard 19-inch PDU rack?

A: No — it is built to the OCP ORV3 specification and is intended for ORV3-compliant rack frames and power shelves, not conventional 19-inch PDU infrastructure.

James Everett

The BUS-44-0400V3-30 is a straightforward spec to plan around once you know your rack standard: 400A on a 44OU ORV3 busbar. I get asked fairly often whether an OCP busbar can substitute for a rack full of conventional PDUs — the honest answer is only if the rack frame and power shelves are already built to ORV3.

Technical Highlights:

• 400A rating: sized for dense OCP compute/storage deployments where aggregate rack load exceeds what a pair of standard PDUs comfortably carries.
• 44OU length: spans a full 44OU frame in one run, so you're not splicing busbar sections mid-rack.
• 25 lb shipping weight: light enough for one technician to position during rack build without a lift or second set of hands.

Deployment Considerations:

• Confirm every rack frame and power shelf in the row is ORV3-spec before ordering — this busbar is not a drop-in for legacy 19-inch PDU racks.
• Available documentation doesn't list voltage, phase configuration, or connector detail, so get those confirmed against your power shelf spec sheet before finalizing an order.

This is the right busbar for a row of OCP ORV3 racks standardizing on 400A zones — not for a mixed-standard data center still running legacy PDU-fed cabinets.