Vertiv BPB29 Bottom Panel Brush Assembly, 29-Inch Depth
Overview
The Vertiv BPB29 is a 29-inch-deep bottom panel brush assembly designed for Vertiv rack enclosures where controlled cable entry is required at the floor opening. The brush insert creates a flexible seal around power, data, and fiber runs entering the cabinet from below — blocking airflow bypass at the base of the enclosure without forcing you to cut or permanently modify the panel. If you're managing hot-aisle/cold-aisle containment or simply trying to prevent uncontrolled air recirculation in a structured cabling environment, the BPB29 addresses the bottom-entry gap directly.
Key Features
- 29-Inch Depth Match: Sized specifically for 29-inch-deep Vertiv enclosures — fits the bottom opening without shimming or cutting, so installation doesn't require field modification to the cabinet frame.
- Brush-Style Cable Seal: The bristle insert conforms around irregular cable bundles — mixed diameters, angled runs, and multi-conductor groups pass through without binding, unlike rigid grommets that require precise cutout sizing.
- Airflow Management at Floor Entry: Sealing the bottom panel reduces uncontrolled bypass air at the base, which matters when your cooling strategy depends on directing airflow through equipment rather than around it. Even partial bottom-entry gaps can undermine in-row or precision cooling efficiency.
- Non-Destructive Installation: Designed as a drop-in assembly — no drilling into the cabinet floor, no permanent alterations. Useful in leased data center space or co-location environments where cabinet modifications may be restricted.
- Compatible with Vertiv Enclosure Ecosystem: Built to Vertiv dimensional standards, so it integrates with Vertiv rack and enclosure lines without adapter hardware or custom fabrication.
Integration & Compatibility
The BPB29 is sized for Vertiv enclosures with a 29-inch depth footprint. If you're working with a different depth — 24-inch or 48-inch cabinets, for instance — confirm the enclosure depth before ordering, as brush panel assemblies are depth-specific and do not adapt across cabinet sizes. For full bottom-entry management in a mixed-cable environment, pair the BPB29 with structured cable management accessories to maintain bend radius and strain relief above the panel. It fits within broader Power & UPS infrastructure deployments where Vertiv cabinets are the standard enclosure platform.
Frequently Asked Questions
Q: What enclosure depth does the BPB29 fit?
A: The BPB29 is designed for 29-inch-deep Vertiv rack enclosures. Confirm your cabinet depth before ordering — brush panel assemblies are depth-specific and will not fit correctly in shallower or deeper enclosures.
Q: Can the BPB29 be used with non-Vertiv enclosures?
A: The BPB29 is built to Vertiv dimensional specifications. Compatibility with third-party enclosures depends on whether the bottom panel opening dimensions match — verify the opening size against your cabinet's documentation before purchasing.
Q: Does the BPB29 support hot-aisle/cold-aisle containment strategies?
A: Yes. Sealing the bottom panel entry point with the brush assembly reduces uncontrolled bypass airflow at the cabinet base, which is a meaningful contributor to containment effectiveness in precision cooling environments.
Q: Is the BPB29 a permanent modification to the cabinet?
A: No. The BPB29 is a drop-in brush panel assembly — it does not require drilling or permanent alteration to the enclosure frame, making it suitable for co-location or leased data center environments with modification restrictions.
Q: What cable types can pass through the BPB29 brush insert?
A: The bristle design accommodates mixed cable types — power, data, and fiber — in varying diameters and bundle configurations. The flexible bristles conform around irregular shapes without requiring precisely sized cutouts.
The BPB29 is one of those components that gets overlooked in the initial cabinet order and then becomes urgent the moment you're trying to close out a containment deployment — the 29-inch depth spec is exact, so don't assume it stretches to fit a shallower or deeper footprint. If you're commissioning a row of Vertiv enclosures with below-floor cable distribution, order the BPB29 alongside the cabinets, not after.
Technical Highlights:
- Depth-Specific Fit (29 in): Built precisely for 29-inch Vertiv enclosures — a correctly fitting brush panel seals the full bottom opening without gaps at the edges, which is where bypass air sneaks through in containment setups.
- Brush Bristle Design: Flexible bristles handle mixed cable diameters in a single pass — no need to pre-sort bundles by size or use separate grommets for power vs. data runs entering from the floor.
- Drop-In Assembly: No modifications to the cabinet structure required — important in co-lo environments where the cage operator restricts permanent alterations to rented rack space.
Deployment Considerations:
- Confirm the enclosure model's bottom panel opening dimensions before installation — even within the Vertiv line, bottom panel cutout geometry can vary between enclosure series at the same nominal depth.
- The BPB29 manages cable entry, not cable organization above the panel — plan bend radius management and strain relief separately using ladder rack or D-rings mounted just above the floor entry point.
The BPB29 is the right pick for structured data center buildouts using Vertiv 29-inch cabinets with raised-floor or under-floor cable routing — specifically where containment integrity at the base of the enclosure is part of the thermal management plan.
