Middle Atlantic 6 Pieces EB3 Contractor Pack Flanged Blank Panels in Plain Poly Bags - EB3-CP6

Middle Atlantic EB3-CP6 3U Flanged Steel Blank Rack Panels — 6-Pack

Overview

The Middle Atlantic EB3-CP6 is a contractor-pack of six 3U flanged blank panels designed to fill open rack space in standard 19-inch equipment racks. At 5.25 inches tall (3 rack units) each and finished in flat black powder coat, these panels close off unused slots that would otherwise allow hot exhaust air to recirculate through the front of the rack — a real thermal management issue in densely loaded security equipment enclosures and AV racks. If you're commissioning a new rack or retrofitting a partially loaded cabinet, keeping a few EB3-CP6 packs on the shelf is standard practice for integrators working in enterprise, data center, and physical security environments.

Each panel ships in a plain poly bag and is fabricated from steel with a flat black powder coat finish that blends cleanly with Middle Atlantic rack enclosures and most third-party 19-inch racks. The flanged style means the panel face sits flush against the rack rail with the flange sitting behind, providing a clean front appearance without the stepped look of unflanged panels. Two mounting points keep installation fast — line it up, drive two screws, move on.

Key Features

• 3U Height (5.25 in / 13.3 cm): Fills three rack units per panel — useful when you have a block of open space below a recorder or UPS and need to close it off in a single pass rather than stacking three 1U fillers. Fewer fasteners, faster install.
• Standard 19-Inch Panel Width (48.3 cm): Fits universally in EIA-310-compliant 19-inch racks. No adapter strips, no custom cutouts — drops straight in alongside switches, NVRs, patch panels, and power distribution units.
• Flanged Construction: The flanged style seats the panel body behind the rail face, producing a flush, finished front appearance. Flanged panels also resist flex better than flat-tab designs under incidental contact — relevant in high-traffic equipment rooms where rack doors get bumped.
• Flat Black Powder Coat Finish: Baked-on powder coat holds up to scratches and handling better than painted finishes — important in a contractor pack that may sit in a job-box for months before installation. The flat black matches standard rack aesthetics without showing fingerprints.
• Steel Construction: Steel panels support airflow baffling, cable management accessories, or light-duty mounting clips if needed down the road. Cheaper plastic fillers crack under minor rack door pressure; these don't.
• Shallow Depth (0.52 in / 1.3 cm): At just over half an inch deep, the panel doesn't intrude on cable runway space behind the rail — a real consideration in shallow-depth wall-mount racks common in network switch and access control deployments.
• 6-Panel Contractor Pack: Packaged as a six-piece lot, the EB3-CP6 (often searched as EB3 CP6) reduces per-panel cost and ensures you have spares on-site when a rack layout changes mid-project. Buying singles when you need six wastes budget and time.
• Two Mounting Points per Panel: Standard two-screw mounting pattern aligns with EIA rack hole spacing. Quick to install, and won't rack-rattle under vibration from nearby HVAC or cooling fans.

Integration & Compatibility

The EB3-CP6 is compatible with any EIA-310-compliant 19-inch open-frame or enclosed rack. That covers Middle Atlantic's own rack and enclosure line as well as standard rack accessories from other manufacturers. The 3U footprint makes these panels particularly practical alongside 2U or 4U network video recorders, 1U PoE switches, and multi-space UPS units where open slots tend to cluster in 2–4U gaps. For integrators building out physical security racks — NVR plus switch plus power distribution — these fill the inevitable gaps left by non-contiguous equipment heights.

There is no electrical or network component to configure. Install is mechanical only: position panel in open rack space, align to rail holes, fasten with appropriate rack screws (not included — standard M6 or 10-32 depending on your rack). The flanged design works in both square-hole and threaded-hole rails.

What's in the Box

• 6x Middle Atlantic EB3-CP6 3U Flanged Blank Panels (individual plain poly bags)

Frequently Asked Questions

Q: How many rack units does each panel in the EB3-CP6 pack cover?

A: Each panel is 3U (5.25 inches / 13.3 cm tall). The EB3-CP6 pack contains six panels, so the full pack covers 18U of open rack space.

Q: Are rack screws included with the EB3-CP6?

A: No. The EB3-CP6 panels ship without mounting hardware. Use standard M6 or 10-32 rack screws appropriate for your rack rail type.

Q: Will the EB3-CP6 fit a non-Middle Atlantic 19-inch rack?

A: Yes. The 19-inch panel width (48.3 cm) and standard two-hole mounting pattern are compatible with any EIA-310-compliant 19-inch rack, regardless of manufacturer.

Q: What is the finish on the EB3-CP6 panels?

A: Flat black powder coat over steel. The baked-on finish is more durable than spray paint and matches standard rack aesthetics.

Q: Is the flanged style different from a standard flat blank panel?

A: Yes. On a flanged panel, the face plate sits flush with the rack rail and the flange wraps behind it. This gives a cleaner front appearance and slightly better panel rigidity compared to flat-tab designs.

Q: What is the panel depth of the EB3-CP6?

A: 0.52 inches (1.3 cm). This shallow profile keeps the panel from intruding on rear cable management space — useful in wall-mount or shallow-depth rack enclosures.

Ted Perry

The EB3-CP6 is one of those products that sounds trivial until you've dealt with a rack that's running 8–10°F hotter than it should because open slots are short-circuiting the front-to-back airflow path. At 3U per panel and six panels per pack, this contractor pack covers 18U of gap in one order — enough to button up a full 42U rack that's two-thirds loaded with NVRs, switches, and power gear.

Technical Highlights:

• Flanged construction at 0.52 in depth: The shallow 0.52-inch profile keeps rear cable runway fully accessible — a real win in wall-mount enclosures where every inch behind the rail matters. The flange locks the panel flush against the rail face with no forward protrusion.
• Steel + powder coat durability: Flat black powder coat over steel means these panels survive job-site handling, tool bags, and years of rack access without the cracking or chipping you get from plastic fillers or cheap painted steel.
• 6-pack contractor quantity: At 3U per panel, six panels is the right job-lot quantity for a single 42U rack buildout. Buying six at once rather than singles reduces reorder friction on multi-rack projects.

Deployment Considerations:

• Rack screws are not included — have M6 or 10-32 hardware on hand before installation. The two-hole mounting pattern is standard EIA, so no special fasteners are needed, but forgetting screws on a remote site install is a real delay.
• The EB3-CP6 ships at 11.4 lbs for the six-panel pack — plan accordingly for freight on large orders, as bulk rack accessory shipments can add up quickly on multi-site projects.

For integrators building out physical security equipment rooms with network video recorders, PoE switches, and access control hardware, keeping the EB3-CP6 in standard project BOM templates prevents the last-minute open-slot problem that leaves racks thermally compromised on day one.