Vertiv Copper BUS BAR 42U - VRA6042

Vertiv VRA6042 Copper Bus Bar 42U Rack Grounding Kit

Overview

The Vertiv VRA6042 is a copper bus bar designed specifically for 42U Vertiv VR-series open-frame and enclosed racks. If you are building out a structured rack deployment — data center row, telecom closet, or IT infrastructure cabinet — a dedicated bus bar is the correct way to establish a common bonding point for equipment grounding rather than daisy-chaining ground conductors between chassis. The VRA6042 is sold as a single unit, sized and engineered to match the 42U height of Vertiv's VR rack family.

Copper is the right material choice here: it offers lower resistivity than aluminum alternatives, making it the preferred conductor for bonding applications where you need a reliable, low-impedance grounding path across multiple mounted devices. This is not a decorative or optional add-on — in properly commissioned rack installations, a bus bar is a code-relevant component that supports NEC and TIA-607 bonding practices.

Key Features

• Copper construction: Copper provides significantly lower electrical resistance than aluminum, which matters when you are establishing a common bonding point for multiple pieces of rack-mounted equipment. Lower resistance means the grounding path stays effective even as the number of connected devices grows.
• 42U rack height match: The VRA6042 is dimensioned to span the full 42U height of compatible Vertiv VR-series racks. Buying a bus bar that does not match your rack's U-height means either dead space or mounting interference — this part eliminates that guesswork for 42U deployments.
• Rack-mount installation: Designed for rack-mount installation inside the VR enclosure. No field fabrication, no custom drilling — the VRA6042 installs as a purpose-built component within the rack's existing structure.
• Grey finish: The grey housing finish matches the standard Vertiv VR rack color family, maintaining visual consistency in multi-rack rows where appearance and organization both matter.
• Single-unit packaging: Ships as one bus bar per pack. If you are outfitting multiple racks in a row, order one VRA6042 per 42U rack. The 48U equivalent is the VRA6043 — confirmed in the same Vertiv VR accessories catalog.
• Purpose-built for VR-series racks: Verified compatibility with Vertiv VR3100, VR3300, VR3150, and VR3350 rack models. Using aftermarket or generic bus bars in these enclosures risks fit issues and voids the rack's design intent for grounding topology.

Integration and Compatibility

The VRA6042 is confirmed compatible with the following Vertiv VR-series rack models: VR3100, VR3300, VR3150, and VR3350. These are Vertiv's primary open-frame and enclosed rack enclosures for data center and IT room deployments. If your rack is a 48U variant in the VR family, the correct bus bar is the Vertiv VRA6043 — not this part.

This bus bar slots into the broader rack accessories ecosystem for VR-series builds. Vertiv offers a full suite of VR accessories including rail conversion kits, side panels, top panels, PDU brackets, caster kits, and depth extensions — all designed to work together within the same rack platform. When commissioning a full rack infrastructure build, plan the bus bar alongside your rack PDU selection and cable management layout so grounding paths are established before equipment is populated.

If you are working through a structured cabling or data center buildout, consult TIA-607-C (Commercial Building Grounding and Bonding Requirements for Telecommunications) for guidance on bus bar placement, conductor sizing, and labeling requirements. The VRA6042 provides the physical component; your site's bonding design determines how it gets wired.

Frequently Asked Questions

Q: What rack models is the VRA6042 compatible with?

A: The VRA6042 is confirmed compatible with Vertiv VR3100, VR3300, VR3150, and VR3350 rack models. For 48U VR-series racks, use the VRA6043 instead.

Q: Why is copper used instead of aluminum for the VRA6042 bus bar?

A: Copper has lower electrical resistivity than aluminum, making it a better conductor for equipment bonding and grounding applications. In rack deployments with multiple connected chassis, a low-resistance bonding path is important for grounding effectiveness.

Q: How many bus bars come in a pack of VRA6042?

A: The VRA6042 ships as a single unit (1 pc per pack). For multi-rack rows, order one unit per 42U rack.

Q: Is the VRA6042 compatible with 48U Vertiv VR racks?

A: No. The VRA6042 is sized for 42U racks. For 48U VR-series racks, the correct part is the VRA6043 Copper BUS Bar 48U.

Q: Does the VRA6042 require any special tools or hardware for installation?

A: The evidence available does not specify tooling requirements. As a purpose-built Vertiv VR accessory, it is designed to install within the existing rack structure, but consult the Vertiv VR installation guide for torque specs and mounting details.