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Middle Atlantic EFB45CTCBZTR Evolution Series Floor Box Surface Cover Insert

The Middle Atlantic EFB45CTCBZTR is a surface-style floor box cover insert designed for the Evolution Series EFB45 raised floor box platform. At 9.94 in (25.2 cm) wide and 1.19 in (3 cm) tall, it sits flush enough for high-traffic floor environments while providing a finished, professional appearance over structured cabling infrastructure in conference rooms, boardrooms, and open office deployments.

Overview

Middle Atlantic's Evolution Series floor boxes are a common infrastructure element in AV and security integrations — providing power and data access points at the floor level without exposed cabling. The EFB45CTCBZTR cover insert completes that installation with a bronze finish that blends into commercial flooring environments where brushed metal aesthetics are preferred over standard white or ivory.

Key Features

• Bronze finish: The bronze color coordinates with commercial-grade flooring hardware and furniture legs in corporate and hospitality environments — avoids the visual mismatch that comes with a white cover plate on dark hardwood or tile.
• Tamper-resistant receptacles: The TR-rated receptacle type meets NEC tamper-resistant requirements for commercial and some educational occupancies — relevant if the AHJ or owner specification requires TR compliance throughout the facility.
• Surface cover style: Designed as a surface-mount cover (not a flush or recessed profile), which simplifies installation on raised floor systems where the box sits proud of the subfloor — no additional depth management required.
• Compact profile at 1.19 in tall: The low-profile height keeps trip hazards minimal in open floor plan deployments where the box is in a pedestrian path rather than under a fixed workstation.
• 9.94 in footprint: Sized specifically for the EFB45 platform — do not attempt to fit this cover on a different box series without confirming dimensional compatibility first.

Integration & Compatibility

The EFB45CTCBZTR is designed for use with Middle Atlantic's EFB45 Evolution Series floor box. Confirm your existing floor box model before ordering — the EFB45 platform has multiple cover and insert configurations, and mixing incompatible cover styles will result in fitment issues. TAA compliance is not applicable to this SKU, which is worth noting for federal procurement contexts where TAA compliance is a hard requirement across all bill-of-materials line items.

Frequently Asked Questions

Q: Is the EFB45CTCBZTR TAA compliant?

A: No. The EFB45CTCBZTR is not TAA compliant. If your project requires TAA compliance across all components, verify with Middle Atlantic whether an alternative cover insert in the EFB45 family meets that requirement.

Q: What floor box is the EFB45CTCBZTR compatible with?

A: The EFB45CTCBZTR is designed for the Middle Atlantic Evolution Series EFB45 floor box platform. Do not assume cross-compatibility with other box series without confirming dimensions.

Q: What does the tamper-resistant receptacle designation mean for this cover?

A: Tamper-resistant (TR) receptacles include shutters that block insertion of foreign objects into a single slot — a requirement in NEC-regulated commercial and educational facilities. The EFB45CTCBZTR's TR rating means it satisfies this code requirement where applicable.

Q: What are the dimensions of the EFB45CTCBZTR?

A: Width is 9.94 in (25.2 cm) and height (profile above floor) is 1.19 in (3 cm). Depth data is not published in the available specification sheet.

Q: Is this a flush or surface-mount cover?

A: Surface-mount. The EFB45CTCBZTR sits on top of the floor box rather than recessing flush with the floor surface — factor this into your finished floor height planning on raised-access floor systems.

Karl Wilson

The EFB45CTCBZTR is a finish and compliance detail that tends to get specified late and ordered wrong. The tamper-resistant receptacle requirement is the spec that matters most from an inspection standpoint — if your AHJ is enforcing NEC 406.12 on commercial occupancies, a non-TR cover will flag on rough-in inspection regardless of how clean the rest of the install is.

Technical Highlights:

• Tamper-Resistant Receptacles: TR-rated shuttered outlets satisfy NEC 406.12 requirements in commercial and educational occupancies — spec this intentionally, not as an afterthought.
• Surface Cover Style: At 1.19 in tall, the surface profile is low enough for open-floor deployments but still proud of the finished floor — account for this in raised-access floor height calculations.
• Bronze Finish: Bronze is a specific finish match for commercial environments with dark wood, stone, or metallic flooring hardware — it is not interchangeable with brushed nickel or black covers on the same platform.

Deployment Considerations:

• Confirm the host box is the EFB45 platform before ordering — Middle Atlantic's Evolution Series has multiple box sizes and the cover dimensions (9.94 in wide) are platform-specific, not universal across the line.
• TAA compliance is explicitly listed as No for this SKU — if this is a federal, GSA schedule, or DoD-adjacent project with a TAA hard requirement on every BOM line item, do not spec this part without an approved substitution.

Best fit for corporate conference room and hospitality AV buildouts where bronze finish hardware is part of the interior specification and TR receptacles are a code or owner requirement — not a general-purpose cover for utility or back-of-house installations.