Vertiv CBB-60 Isolated Copper Bus Bar
Overview
The Vertiv CBB-60 is an isolated copper bus bar in an L-configuration, engineered for structured power distribution within data center and critical infrastructure environments. The CBB-60 (often searched as CBB 60) provides a rigid, low-impedance current path between power distribution equipment, reducing resistive losses and simplifying high-current wiring in dense equipment deployments. Copper construction ensures long-term conductivity without the oxidation concerns associated with aluminum alternatives — relevant in environments where maintenance access is limited or scheduled infrequently.
Isolated bus bar designs like the CBB-60 are common in UPS output distribution, PDU internal bussing, and bypass switching assemblies where fault isolation between phases or circuits is a hard requirement. The L-form factor accommodates right-angle routing within enclosures, allowing installers to navigate cabinet geometry without field-bending or custom fabrication.
Key Features
- Isolated configuration: Phase and neutral circuits are electrically separated, which is mandatory in any installation where cross-phase contact would create a safety hazard or trip upstream protection. No reliance on insulating tape or post-installation wrapping — isolation is built into the bar geometry.
- Copper conductor: Copper delivers higher conductivity per cross-sectional area than aluminum, which matters when you need to maintain low voltage drop at rated current without upsizing the bar. In high-density power infrastructure, that difference is measurable at the load.
- L-configuration form factor: Right-angle geometry fits cabinet corner routing without field modification, reducing installation time and eliminating improvised bends that can introduce stress points in the conductor.
- Vertiv ecosystem fit: Designed as a component within the broader Vertiv power and thermal management line, the CBB-60 is built to dimensional tolerances that align with Vertiv enclosure and power distribution hardware — reducing fitment guesswork during assembly.
Integration & Compatibility
The CBB-60 is intended for use within Vertiv power distribution and UPS infrastructure. Verify bus bar slot dimensions and current rating against your specific enclosure or PDU model before ordering. Consult your Vertiv UPS and power infrastructure documentation to confirm bar spacing, torque specifications, and any required insulating hardware not supplied with the bar itself. Installers working on data center power infrastructure projects should cross-reference the assembly drawing for the target enclosure before procurement.
Frequently Asked Questions
Q: What does the isolated designation mean on the CBB-60?
A: Isolated means the bus bar is electrically separated from adjacent conductors or the enclosure ground plane by design — no additional insulating wrapping is required to meet isolation requirements. This is a required configuration in multi-phase distribution assemblies where contact between conductors would cause a fault.
Q: Is the CBB-60 compatible with all Vertiv enclosures?
A: The CBB-60 is designed for the Vertiv power distribution ecosystem, but compatibility depends on the specific enclosure model and bus bar slot configuration. Confirm dimensional fit and current rating against your target Vertiv PDU or UPS output assembly before ordering.
Q: Can the CBB-60 be used outside of Vertiv equipment?
A: The CBB-60 is a Vertiv-manufactured component and is dimensioned for Vertiv equipment assemblies. Use in third-party enclosures requires verification of physical fit, conductor spacing, and current-carrying capacity against your application requirements.
Q: What is the material of the CBB-60 bus bar?
A: The CBB-60 uses copper construction, which provides higher conductivity than aluminum alternatives and is the preferred material for high-current distribution in critical infrastructure applications.
The CBB-60 is the kind of component that either fits your Vertiv assembly exactly or it doesn't — the L-configuration and isolated design are non-negotiable geometry constraints, not preferences. When I spec this bar for a project, the first check is always the enclosure's bus bar slot drawing, not the product page. Copper construction is the right call here: in a high-current distribution path, the conductivity advantage over aluminum is real and measurable at the load terminals under sustained draw.
Technical Highlights:
- Copper conductor: Higher conductivity per cross-section means lower resistive drop at rated current — relevant in UPS output distribution where voltage tolerance at the load is tight.
- Isolated design: Built-in phase isolation eliminates the need for field-applied insulating sleeves or taping, which are failure points under vibration or thermal cycling in active data center environments.
- L-configuration: Right-angle form factor routes current around cabinet corners without field bending — cold-bent copper work-hardens and can crack at stress points under thermal expansion cycles.
Deployment Considerations:
- Verify the torque specification for terminal connections from the Vertiv enclosure documentation — undertorqued bus bar connections are a leading cause of resistive heating at the joint under load.
- The CBB-60 is dimensioned for specific Vertiv equipment; do not assume cross-fit with third-party PDU or switchgear assemblies without a drawing comparison — bus bar slot pitch and conductor thickness tolerances vary by manufacturer.
The CBB-60 is the right component for Vertiv-platform data center power distribution builds where isolated copper bussing is specified and right-angle routing within the enclosure is required — it is not a field-fabrication substitute and should not be treated as one.
