Middle Atlantic 881RC4ATCBS Rachet Pro 881 Series Floor Box Cover Kit — Brass and Black
Overview
The Middle Atlantic 881RC4ATCBS is the activation cover kit for the 881 Rachet Pro Series multiple-service concrete floor box — the brass-and-black finish variant built for commercial environments where floor-level power and signal distribution needs to look intentional, not improvised. At 8.25 inches square with a 3.75-inch profile depth, this cover kit fits flush with finished concrete or tile surfaces and provides the trim and activation hardware that converts a rough-in floor box into a finished, serviceable multi-port installation point.
This is the component you specify when the 881RC4AT floor box body is already roughed into the slab and the project reaches finish phase. The 881RC4ATCBS supplies the brass-finished cover assembly, the activation hardware, and the black accent elements that complete the installation — making this the right line item on a finish-phase purchase order for conference rooms, boardrooms, trading floors, lobbies, or any concrete-deck space where underfloor power and data routing feeds workstations or AV equipment at the floor plane.
Explore the full Middle Atlantic product line for raceway, power management, and structured cabling solutions that pair with floor box deployments.
Key Features
- TAA Compliant: The 881RC4ATCBS carries TAA (Trade Agreements Act) compliance, which means it satisfies federal procurement requirements under GSA schedules and qualifies for government, education, and defense projects where Buy American / TAA rules are enforced. If your project requires TAA-compliant infrastructure throughout, this cover kit won't create a compliance gap at the floor level.
- 8.25 × 8.25-inch square footprint: The 8.25-inch square plan dimension fits the 881 Series rough-in cutout without modification. Standard floor box rough-ins in concrete decks are typically cut to the box manufacturer's template — confirm your rough-in was cut to the 881RC4AT body spec before ordering this cover kit to avoid a rematch job at finish phase.
- 3.75-inch profile depth: At 3.75 inches deep (9.5 cm), the cover assembly sits at a depth compatible with standard poured-concrete and raised-access floor applications. This depth accommodates the ratchet activation mechanism without protruding above the finish floor plane — critical in high-traffic areas where a proud cover edge becomes a trip hazard.
- Brass and black finish combination: The brass-over-black color scheme suits hospitality, corporate headquarters, and boardroom deployments where a raw metallic or brushed-aluminum floor plate would look out of place. Brass reads as intentional architectural hardware rather than industrial infrastructure — relevant when interior design sign-off is part of the project scope.
- Ratchet Pro activation mechanism: The Rachet Pro designation indicates the cover uses a ratcheting engagement system rather than a screw-down or bayonet lock. This matters in high-use environments: the ratchet mechanism allows one-handed opening and positive re-engagement without tools, which reduces fumble time when users are plugging in laptops or AV cables at the floor.
- Multiple-service design: The 881 Series is engineered for multiple-service deployment — meaning power, data, and AV signal can all route through the same floor box body. The 881RC4ATCBS cover kit is specified to match this multi-port capability, so the finish hardware accommodates several service ports in the same 8.25-inch footprint rather than requiring separate floor boxes per service type.
Integration and Compatibility
The 881RC4ATCBS is the cover kit activation component for the 881RC4AT Rachet Pro floor box body. It is not a standalone floor box — the rough-in body must be installed in the concrete deck before this kit is ordered and installed. Confirm the base box model before specifying this cover kit; mismatched cover-to-body combinations will not align correctly at the finish surface. For structured cabling and floor box and cover solutions, verify compatibility with the installed base box series before procurement.
For projects integrating underfloor power distribution with rack or cabinet infrastructure, pair this floor box finish with a power management solution from the same product family to maintain consistent TAA compliance across the installation. If your deployment also includes overhead cable management or wall-mounted rack systems, the broader cable management catalog carries complementary components.
Frequently Asked Questions
Q: Is the 881RC4ATCBS TAA compliant?
A: Yes. The 881RC4ATCBS is confirmed TAA (Trade Agreements Act) compliant, making it eligible for federal, state, education, and defense procurement under GSA schedules and similar programs.
Q: What are the dimensions of the 881RC4ATCBS cover kit?
A: The cover kit measures 8.25 inches wide × 8.25 inches deep × 3.75 inches tall (21 cm × 21 cm × 9.5 cm). These dimensions correspond to the 881RC4AT floor box body rough-in footprint.
Q: What finish/color is the 881RC4ATCBS?
A: Brass and black. The brass finish is the primary cover surface; black accent elements provide contrast. This combination is suited to corporate, hospitality, and boardroom environments where architectural hardware aesthetics matter.
Q: Is the 881RC4ATCBS a complete floor box, or just the cover?
A: It is a cover kit only — specifically the activation hardware and cover assembly for the 881RC4AT floor box body. The body must be roughed into the concrete slab separately. Order the body and cover kit as complementary line items.
Q: What type of floors is the 881RC4ATCBS designed for?
A: The 881 Series is designed for concrete floor installations, including poured-concrete decks and compatible raised-access floor applications. It is not designed for wood-subfloor or shallow-depth installations.
Q: What does the Rachet Pro activation mechanism mean in practice?
A: The ratchet mechanism allows the cover to be opened and re-engaged without tools, using a one-handed ratcheting action. This is faster and more reliable in day-to-day use than screw-down or bayonet covers, particularly in high-traffic conference and trading-floor environments.
The 881RC4ATCBS is one of those finish-phase items that only matters when it's wrong. At 8.25 inches square, this brass-and-black cover kit is spec'd to the 881RC4AT body rough-in — and if someone swaps in a mismatched cover at final trim, you're looking at a rework call on a concrete slab, which is never a quick fix. I recommend confirming the body model is on-site and verified before this kit ships.
Technical Highlights:
- TAA Compliance: Government, education, and defense projects with TAA-enforcement requirements can use the 881RC4ATCBS without a compliance exception — it satisfies Trade Agreements Act procurement rules as confirmed for this SKU.
- 8.25 × 8.25-inch footprint, 3.75-inch depth: The plan dimensions match the 881RC4AT rough-in template precisely. The 3.75-inch depth keeps the cover flush with finish floor surfaces in standard concrete deck pours — no grinding required on a properly prepared rough-in.
- Brass and black finish: This is an architectural-grade finish selection, not a utility color. Brass reads as intentional design hardware in boardrooms and hospitality lobbies — relevant when the interior design team has sign-off authority on visible infrastructure.
Deployment Considerations:
- This is the cover kit only — the 881RC4AT floor box body is a separate procurement item. Specify both on the same purchase order and confirm the body is already roughed into the slab before scheduling finish installation.
- The ratchet activation works tool-free, but the mechanism needs a clean, unobstructed opening arc. In high-foot-traffic zones, verify the installation orientation doesn't conflict with furniture legs or fixed seating that could block the cover swing.
The 881RC4ATCBS is the right call on any corporate boardroom, hospitality ballroom, or federal conference room project where the finish floor carries brass or warm-metal hardware standards and TAA compliance is a contract requirement — not optional.
