Vertiv VRA6043 Copper Bus Bar 48U Rack Accessory
Overview
The Vertiv VRA6043 is a copper bus bar designed for 48U configurations of the Vertiv VR-series open-frame and enclosed server rack cabinets. Where grounding continuity and equipotential bonding across rack frames matter — data centers, network rooms, and structured cabling environments — a properly installed bus bar eliminates the guesswork of field-fabricated bonding solutions. This is a factory-sourced component, not a generic aftermarket piece, which means it fits the VR cabinet frame geometry without modification.
If you are running Vertiv VR-series cabinets at 48U height and need a compliant grounding bus, the VRA6043 is the purpose-built answer. Its 42U counterpart, the VRA6042, handles shorter cabinet configurations — so confirm your rack height before ordering.
Key Features
- Copper construction: Copper provides significantly lower electrical resistance than aluminum or steel alternatives, which matters when bonding multiple cabinet frames together for equipotential grounding — lower resistance means more reliable fault current paths and cleaner RF environments for sensitive networking gear.
- 48U rack capacity: Sized specifically for 48U VR-series cabinet heights — not a trimmed-down or extended universal bar. Proper fit means clean mounting with no gap or overhang that can interfere with adjacent cable management or PDU brackets.
- Grey finish: Matches the standard Vertiv VR cabinet color profile, keeping installations visually consistent without requiring custom finishing work.
- Single-unit pack: Ships as one bus bar per pack (1 pc), so quantity planning per cabinet row is straightforward — order one VRA6043 per 48U cabinet requiring a bus bar.
- Rack-mount design: Mounts directly to the VR cabinet frame using the existing rack mounting points — no drilling, no custom hardware fabrication required in the field.
- Verified VR-series compatibility: Validated for use with VR3107, VR3307, VR3157, and VR3357 cabinet models, covering both 600mm and 800mm width variants in the Vertiv VR line. If your cabinet SKU is not on that list, verify before ordering.
Compatibility
The VRA6043 is confirmed compatible with the following Vertiv VR-series rack models:
- VR3107 — VR open-frame rack, 600mm width
- VR3307 — VR open-frame rack, 800mm width
- VR3157 — VR enclosed cabinet, 600mm width
- VR3357 — VR enclosed cabinet, 800mm width
Both 600mm and 800mm depth/width variants are covered, making this bus bar suitable for standard and wide-body deployments within the VR product line. For 42U cabinet installations, use the VRA6042 instead. For 45U configurations, Vertiv offers separate rail and panel accessories in the VRA series — confirm the specific height against your cabinet spec sheet before purchasing bus bar components.
The VRA6043 slots into a broader data center cabinet accessory ecosystem that includes depth extension kits (VRA3007/VRA3008), top panels (VRA6019/VRA6020), networking roof panels (VRA6035/VRA6036), and PDU/cable management brackets (VRA6026) — all sized for 48U VR-series frames.
Frequently Asked Questions
Q: Which Vertiv cabinet models is the VRA6043 compatible with?
A: The VRA6043 is confirmed compatible with VR3107, VR3307, VR3157, and VR3357 — Vertiv's 600mm and 800mm VR-series open-frame and enclosed cabinet models.
Q: What is the difference between the VRA6042 and VRA6043?
A: The VRA6042 is the copper bus bar for 42U VR-series cabinets; the VRA6043 is sized for 48U cabinets. The two are not interchangeable — confirm your cabinet rack unit height before ordering.
Q: How many bus bars come in one order of VRA6043?
A: One bus bar per pack (1 pc). Plan one unit per 48U cabinet requiring a grounding bus.
Q: What material is the VRA6043 bus bar made from?
A: Solid copper, which provides lower electrical resistance than aluminum alternatives — important for reliable equipotential bonding across cabinet frames.
Q: Can the VRA6043 be used with non-Vertiv racks?
A: The VRA6043 is designed and validated specifically for Vertiv VR-series cabinets (VR3107, VR3307, VR3157, VR3357). Compatibility with third-party rack frames is not documented in the available evidence and cannot be confirmed.
The VRA6043 is one of those parts that looks trivial on a BOM until you skip it and then spend two hours troubleshooting ground loops in a freshly commissioned row of VR-series cabinets. The copper construction is the spec that matters here — copper's conductivity advantage over steel or painted aluminum is meaningful when you're bonding 6 or 8 cabinets in a row and need a consistent low-impedance path to facility ground.
Technical Highlights:
- Copper housing material: Lower resistance than steel or aluminum bus options — directly relevant when bonding multiple 48U VR-series frames in a cabinet row for equipotential grounding compliance.
- 48U-specific fit: Sized for VR-series 48U frames, not a cut-down universal bar. Fits without modification on VR3107, VR3307, VR3157, and VR3357 cabinet models covering both 600mm and 800mm widths.
- Rack-mount design: Uses existing cabinet mounting points — no field drilling or custom hardware. Keeps installation clean and repeatable across a multi-cabinet row deployment.
Deployment Considerations:
- Confirm cabinet height before ordering: the VRA6042 handles 42U and is not a drop-in substitute for the VRA6043. Mixing them in a multi-row installation creates an inconsistent ground bus height that complicates cable routing between frames.
- Ships as a single unit (1 pc per pack) — for a 10-cabinet row, that means 10 line items. Factor this into your accessory BOM when quoting cabinet deployments rather than assuming a multi-pack is available.
The VRA6043 is the right call for any new 48U VR-series cabinet deployment in a data center or network room where grounding standards (TIA-942, EN 50310, or local electrical code) require documented equipotential bonding across rack frames — particularly in environments with sensitive networking or storage gear where ground noise translates directly to performance or reliability problems.
