Middle Atlantic Vented Front Door Fits 46 Space Racks Black Textured Powder Coat Finish - VFD-46

Middle Atlantic VFD-46 Vented Front Door for 46U SR-Series Racks

Overview

The Middle Atlantic VFD-46 is a purpose-built vented front door engineered to fit 46-space SR-series rack enclosures. At 81.37 inches tall and 20.04 inches wide, it closes out the full front face of a 46RU rack while its 25% open vent area keeps airflow moving through equipment bays — a real factor when you're housing active network gear, UPS units, or power distribution inside a closed rack cabinet. If you've fought thermal shutdowns in sealed enclosures, this is the hardware-level fix: no fans, no controllers, just passive airflow by design. The VFD-46 (often searched as VFD 46) ships in a textured black powder coat finish that matches standard Middle Atlantic SR rack aesthetics and resists surface wear in working installations. For integrators building out rack enclosures for security, AV, or IT infrastructure, this door closes the front panel without trapping heat.

Key Features

• 46U Rack Fit — SR Series: Designed exclusively for the Middle Atlantic SR base series in 46-space configurations. If your enclosure isn't an SR-series frame, verify compatibility before ordering — this door is not a universal fit.
• 25% Open Vent Area: One-quarter of the door face is perforated, providing passive front-to-back airflow without forced cooling. For rack deployments with moderate heat loads — switches, patch panels, access control hardware — this is often enough to keep temps in range without adding fan trays.
• 81.37-Inch Panel Height: Covers the full 46RU (81.37 in / 206.7 cm) front face, leaving no exposed rack space at the top or bottom. Consistent coverage matters in environments where dust ingress or physical access control are concerns.
• 20.04-Inch Width: Matches the 50.9 cm standard width of SR-series frames. This isn't a trimmed or oversized panel — it's a direct dimensional match to the enclosure specification.
• Textured Black Powder Coat Finish: The matte textured surface resists fingerprints and minor abrasion better than gloss powder coat, which matters in working equipment rooms and machine rooms where the rack gets touched regularly during installs and maintenance cycles.
• 1.39-Inch Depth Profile: At under 1.5 inches of added depth, the door doesn't meaningfully change the rack's footprint. In tight server rooms or AV equipment closets where front clearance is limited, that shallow profile keeps aisle space intact.
• 50-lb Shipping Weight: Factor this into installation planning — the door is a substantial panel and requires two people to hang safely on a floor-standing rack frame.

Integration and Compatibility

The VFD-46 is matched to Middle Atlantic's Middle Atlantic SR-series rack family in 46U configurations. If you're specifying a new rack build, pair this with the corresponding SR enclosure frame and rear door (sold separately) for a complete enclosure. For mixed-depth deployments — where some bays hold shallow patch panels and others hold deep UPS or power distribution — the 25% vent open area provides passive cooling without requiring active airflow management hardware. Integrators sourcing rack accessories for government, enterprise, or commercial AV installations should confirm the base rack model before ordering, as Middle Atlantic's door lineup is series- and RU-specific rather than universal. See the rack enclosure buying guide for help matching doors, side panels, and accessories to your enclosure series. If you need to populate the enclosure with power distribution or UPS hardware, verify that your PDUs and UPS units meet the thermal envelope that passive 25% venting supports — active heat loads above roughly 1–2kW in a sealed enclosure typically warrant supplemental fan panels.

Frequently Asked Questions

Q: What rack series does the VFD-46 fit?

A: The VFD-46 is designed for Middle Atlantic SR-series rack enclosures in 46-space (46RU) configurations. It is not a universal-fit door and should only be ordered when the base enclosure is confirmed as an SR-series frame.

Q: How much airflow does the VFD-46 provide?

A: The door has a 25% open vent area across its face. This provides passive front-face airflow without requiring fans or active cooling. It is suitable for moderate heat loads; high-density active equipment may require supplemental fan trays inside the rack.

Q: What are the exact dimensions of the VFD-46?

A: The VFD-46 measures 81.37 inches (206.7 cm) tall, 20.04 inches (50.9 cm) wide, and 1.39 inches (3.5 cm) deep. These dimensions correspond to a full 46RU SR-series enclosure front face.

Q: What finish does the VFD-46 come in?

A: The VFD-46 ships in a textured black powder coat finish, which matches standard Middle Atlantic SR-series rack aesthetics and offers surface durability in working installation environments.

Q: How much does the VFD-46 weigh for shipping?

A: The shipping weight is 50 lbs (22.7 kg). Plan for two-person installation when mounting this door on a floor-standing rack frame.

Eden Phillips

The VFD-46 is one of those components that gets underspecified until the rack runs hot — at which point everyone wishes they'd ordered the vented door from the start. The 25% open vent area is the number to anchor on: it's not a mesh panel with token perforations, it's a meaningful quarter of the front face open to passive convection. For a 46RU SR-series enclosure loaded with switches, access control panels, and power distribution, that's often the difference between stable thermals and nuisance shutdowns on edge gear.

Technical Highlights:

• 25% Vent Open Area: Passive front-face airflow with no moving parts. For enclosures housing low-to-moderate heat loads (network gear, AV distribution, access control), this eliminates the need for front fan trays and simplifies the enclosure bill of materials.
• 81.37-Inch Panel Height: Exact 46RU face coverage at 206.7 cm — no gaps at the top or bottom of the frame, which matters in installations where dust control or physical security of rack contents is a requirement.
• 1.39-Inch Depth: Thin enough to preserve front clearance in tight equipment rooms. At under 1.5 inches added depth, it doesn't push the rack footprint into aisle clearance minimums even in constrained spaces.

Deployment Considerations:

• Confirm the base enclosure is SR-series before ordering — Middle Atlantic's door lineup is series- and RU-specific. Ordering the wrong series door means a return, not a workaround.
• At 50 lbs shipping weight, the VFD-46 is a two-person hang. Don't underestimate panel weight on a tall rack frame; hinge alignment requires controlled placement during install.

For integrators building out 46RU SR-series enclosures in enterprise security or commercial AV infrastructure — where the rack houses a mix of NVR, switching, and access control hardware — the VFD-46 closes the front panel without sacrificing the airflow that keeps that gear running around the clock.