Middle Atlantic 4INCOVERASSEMBLYSURFACEBZ - 4CTCBZ

Middle Atlantic 4CTCBZ Surface-Style Poke-Thru Cover Assembly in Bronze

Overview

The Middle Atlantic 4CTCBZ is a surface-style cover assembly designed for the 4AT Evolution poke-thru device family — the finish piece that transforms a floor-core infrastructure rough-in into a clean, professional installation. At 5.63" x 5.63" x 5.5" (143.1 x 143.1 x 139.7 mm), it sits flush over standard poke-thru cutouts and delivers a polished bronze surface termination for conference rooms, open office floors, and AV integration environments where exposed conduit or bare cores are not acceptable. If you are specifying Middle Atlantic infrastructure products for a commercial buildout, the 4CTCBZ is the bronze-finish cover that completes the assembly.

Key Features

• Surface Cover Style: The surface mount profile means no recessed cavity is required in the finished floor — the assembly sits on top of the floor surface, which simplifies installation in retrofit environments where cutting a deeper pocket is not feasible or permitted.
• Standard Receptacle Type: Accepts standard receptacle configurations, so you are not locked into proprietary inserts. This matters on projects where the electrical or AV contractor sources receptacle modules separately or where future moves-adds-changes need off-the-shelf replacements without hunting for specialty parts.
• Bronze Finish: The bronze color coordinates with commercial flooring hardware in hospitality, corporate, and higher-education environments where silver or black covers would clash with existing floor box hardware. Specify bronze early — finish mismatches on floor boxes are a punchlist item that delays occupancy sign-off.
• 5.63" x 5.63" Footprint: The square 143.1 x 143.1 mm footprint fits within the standard 4AT family cutout envelope. Verify your rough-in dimensions before ordering — this cover is not interchangeable with larger 6-port or round-cover variants in the Evolution line.
• 5.5" Profile Height: At 139.7 mm tall, the assembly provides enough internal clearance for standard cable dressing and strain relief inside the poke-thru body. Tight bend radii on Cat6A or coax are a common field problem on shallow covers — this profile gives you working room.
• Part of the Middle Atlantic Evolution Poke-Thru Ecosystem: Designed specifically for the 4AT Evolution poke-thru device platform, which means mechanical fit, gasket alignment, and cover retention are engineered as a system — not field-adapted. Mixing covers across product families is a common integration mistake that results in gaps, rocking, or trim misalignment.

Integration and Compatibility

The 4CTCBZ is engineered for the 4AT Surface-Style Evolution poke-thru device. Before ordering, confirm your base device part number begins with the 4AT surface-style designation. If your rough-in uses a flush or recessed-style base, you need a different cover variant — surface and flush covers are not interchangeable within the Evolution family. For projects specifying AV and power infrastructure, pair this cover with the correct 4AT base unit, receptacle inserts, and any required data or AV modules to complete the assembly. Consult the poke-thru device category for compatible base units and module options.

Frequently Asked Questions

Q: What poke-thru base device is the 4CTCBZ designed to work with?

A: The 4CTCBZ is the cover assembly for the Middle Atlantic 4AT Surface-Style Evolution poke-thru device. It is not designed for flush or recessed-style base variants in the same family.

Q: What are the overall dimensions of the 4CTCBZ?

A: The 4CTCBZ measures 5.63" x 5.63" x 5.5" (143.1 x 143.1 x 139.7 mm).

Q: What color finish does the 4CTCBZ come in?

A: Bronze. If your project requires a different finish, Middle Atlantic offers other color variants in the 4CT cover line — confirm the correct suffix before ordering.

Q: What receptacle type does the 4CTCBZ support?

A: Standard receptacle type. It is not configured for a specialty or proprietary insert format.

Q: Can the 4CTCBZ be used as a standalone floor box cover without the 4AT base?

A: No. The 4CTCBZ is a cover assembly designed specifically for the 4AT Evolution poke-thru device. It requires the correct base unit for proper fit and function.

Marty Allison

The 4CTCBZ is a detail item that integrators often order last and regret not specifying first. Its 5.63" x 5.63" footprint and bronze finish are fixed — there is no field-adjustable color or size option — so locking in the finish early avoids the punchlist scramble that happens when a client notices the floor hardware does not match the room's other bronze fixtures on walk-through day.

Technical Highlights:

• 5.5" Internal Height: At 139.7 mm, the cover body provides meaningful cable management clearance inside the poke-thru column — enough to properly dress Cat6A, HDMI, or low-voltage runs without forcing tight bends at the transition point.
• Surface Mount Profile: No floor pocket required beyond the standard 4AT rough-in. In retrofit installs on concrete slab or raised-access floors where deeper cutouts are cost-prohibitive, this surface-style cover is the practical termination solution.
• Standard Receptacle Format: Non-proprietary insert compatibility means the AV or electrical contractor can source replacement modules through standard supply channels — no factory-order lead time if a receptacle needs swapping post-occupancy.

Deployment Considerations:

• Verify the base device part number starts with the 4AT surface-style designation before ordering — a flush-base rough-in will not accept this cover and the mismatch is not field-correctable without re-cutting the floor.
• The bronze finish is a fixed attribute of this SKU. If the project finish schedule changes after order, there is no field repaint option that matches the factory bronze — order the correct finish variant from the start.

The 4CTCBZ is the right call for corporate conference rooms, hotel meeting spaces, and higher-education collaborative classrooms where bronze floor hardware is part of the finish specification and the 4AT surface-style base is already in the rough-in plan.