Vertiv 8402E-M24-B 84-Inch Round Mesh Cabinet Door
The Vertiv 8402E-M24-B is a replacement and add-on round mesh door designed for Vertiv E-Series cabinets in the 84-inch height and 24-inch width configuration. If you are specifying or retrofitting a Vertiv rack enclosure and need a mesh front or rear door that fits the 8402E family, this is the part number to order. The 8402E-M24-B (often searched as 8402E M24 B) ships in black finish and is sourced factory-new.
Overview
Mesh doors serve a specific function in data center and telecom enclosures: they maintain the physical security of rack-mounted equipment while allowing passive and active airflow to pass through the cabinet face without restriction. A solid door traps heat; a round mesh door lets hot air exhaust and cold air enter without forcing you to remove the door entirely. For any cabinet running high-density compute, networking gear, or power distribution equipment, the mesh door is usually the right call over a solid panel.
The 8402E-M24-B is built to fit Vertiv E-Series cabinets specified at 84 inches tall and 24 inches wide. Vertiv publishes cabinet width compatibility across the 8402E door family as 24-inch and 29/30/32-inch variants — this listing covers the 24-inch form factor. Height compatibility listed for the 8402E door line spans 30, 48, 60, 72, and 84 inches, with this unit designed for the 84-inch configuration.
Key Features
- Round Mesh Perforation Pattern: Round mesh apertures provide consistent airflow distribution across the door face. Unlike louvered or solid doors, mesh minimizes turbulence at the cabinet entry point, which matters when you're running high-CFM fans inside densely loaded enclosures.
- 84-Inch Height Fit: Matched to full-height Vertiv E-Series cabinets. If your data center standardized on 84-inch racks, this door fits without modification or adapter hardware — no guessing on hinge alignment.
- 24-Inch Width: The 24-inch footprint suits network-closet and secondary-row deployments where floor space is tighter. The 8402E line also offers 29/30/32-inch-wide variants for wider primary compute rows.
- Black Finish: Ships in black. Vertiv lists color options across the 8402E door family as Black, Other, and Clear — confirm your cabinet's finish before ordering if color matching matters in a customer-facing or co-lo environment.
- E-Series Family Compatibility: Designed as part of the Vertiv E-Series door ecosystem, so hinges, latches, and mounting points align with existing E-Series cabinet frames. Replacement and retrofit installs are straightforward if the cabinet is already in place.
- Factory-New Genuine Part: Sourced direct — no remanufactured or grey-market units. For a structural cabinet component that takes daily handling, factory-new matters for long-term hinge and latch integrity.
Integration and Compatibility
The 8402E-M24-B is engineered for Vertiv Vertiv rack and enclosure products within the E-Series line. Before ordering, verify your cabinet's height (84 inches for this SKU) and width (24 inches) against your existing frame. If you are building out a network cabinet or rack enclosure from scratch, pair this door with the corresponding E-Series base frame and side panels. For broader data center infrastructure planning — including cable management, PDUs, and blanking panels — check the full Vertiv enclosure accessory line for compatible add-ons. If you need guidance on rack density and airflow management for your installation, the rack planning guide covers row layout and cooling zone considerations.
Frequently Asked Questions
Q: What cabinet dimensions does the 8402E-M24-B fit?
A: The 8402E-M24-B is designed for Vertiv E-Series cabinets at 84 inches tall and 24 inches wide. The 8402E door family covers heights of 30, 48, 60, 72, and 84 inches, and widths of 24 inches and 29/30/32 inches — make sure both dimensions match your cabinet before ordering.
Q: Is the 8402E-M24-B a front door, rear door, or either?
A: The 8402E-M24-B is a mesh door compatible with Vertiv E-Series cabinet frames. Verify front vs. rear door positioning with your specific E-Series cabinet model, as hinge orientation can differ between front and rear configurations.
Q: What color does the 8402E-M24-B ship in?
A: The 8402E-M24-B ships in black. The broader 8402E door family is also available in other finishes and clear variants — confirm the finish matches your installed cabinet if appearance is a requirement.
Q: Can the 8402E-M24-B be used as a retrofit on an existing Vertiv E-Series cabinet?
A: Yes — Vertiv E-Series doors are designed for retrofit and replacement installs on existing E-Series frames. Hinge and latch points align with the cabinet family, so installation does not require modification to the cabinet frame.
Q: Why choose a round mesh door over a solid cabinet door?
A: Mesh doors allow airflow to pass through the cabinet face without removing the door. This is important in high-density deployments where solid doors would trap heat and raise intake temperatures for rack-mounted equipment. Round mesh provides consistent perforation distribution, reducing hotspots compared to louvered designs.
The spec I always verify first on a cabinet door order is the width-height combination — and the 8402E-M24-B locks that in at 84 inches tall by 24 inches wide for the Vertiv E-Series line. I've seen retrofit orders go sideways when someone pulls the 29-inch-wide variant for a 24-inch frame, so confirm both dimensions against your installed cabinet before the order ships.
Technical Highlights:
- Round Mesh Airflow: Round perforations distribute airflow evenly across the door face — better than louvers for high-CFM fan trays that pull air through unevenly shaped openings.
- 84-Inch Height Fit: Full-height E-Series compatibility means no adapter brackets or modified hinges — the door mounts directly to the existing frame in a standard retrofit.
- Black Finish: Ships black to match standard E-Series cabinet finishes. Vertiv offers clear and other finishes in the 8402E family for visibility or color-match requirements in co-location or customer-facing rooms.
Deployment Considerations:
- Confirm front vs. rear door orientation before install — hinge direction on E-Series frames differs between front and rear positions, and a door ordered for the wrong position won't swing correctly without reversing the hinge.
- This door is specific to the 24-inch cabinet width; the 8402E line has a separate SKU for 29/30/32-inch-wide cabinets. Ordering the wrong width means the door won't close flush against the frame gasket.
The 8402E-M24-B is the right call for facilities teams replacing damaged doors on 84-inch Vertiv E-Series cabinets in wiring closets, IDF rooms, or secondary compute rows where the 24-inch footprint is the installed standard.
