Middle Atlantic Nonmetal Rectnglr Floorbx - 880MP2

Middle Atlantic 880MP2 Rectangular Plastic Floor Box with 2-Inch Conduit Opening

Overview

The Middle Atlantic 880MP2 is a rectangular non-metallic floor box from the ModuLink 880MP Series, designed for below-grade cable management in concrete floor installations. At 4.13 inches wide, 6.25 inches tall, and 8.25 inches deep, it fits into standard concrete floor cutouts while providing a 2-inch conduit opening — the entry point that determines how much cabling infrastructure you can route through a single floor penetration. If you're wiring conference rooms, security operations centers, or open-plan office floors where pulling conduit through the slab is the only practical cable path, the 880MP2 gives you a defined, code-friendly termination point at floor level.

TAA compliance means this unit is produced in accordance with the Trade Agreements Act — a procurement requirement for many federal, state, and education projects. If your job spec calls for TAA-compliant infrastructure throughout, the Middle Atlantic floor box line covers this requirement without requiring a substitution request.

Key Features

• 2-Inch Conduit Opening: Accommodates standard 2-inch EMT or rigid conduit — the most common conduit size in commercial concrete floor pours. Matching your conduit spec at rough-in avoids rework at the box stage.
• Non-Metallic Construction: Plastic housing eliminates galvanic corrosion concerns in damp concrete environments and reduces weight during installation — relevant when setting boxes before the pour.
• Compact Rectangular Footprint (4.13" × 6.25" × 8.25"): The slim 4.13-inch width allows placement in tighter floor tile grids where round boxes won't fit flush, and the 8.25-inch depth provides adequate cavity for low-voltage terminations without requiring a deep-pour slab.
• TAA Compliant: Meets Trade Agreements Act requirements — clears the procurement gate on government, GSA schedule, and many education contracts without a waiver.

Integration & Compatibility

The 880MP2 is part of the Middle Atlantic ModuLink 880MP Series, which means covers, inserts, and module frames from the same family are designed to seat correctly in this box. If you're specifying a complete floor box system — box, cover plate, and data/power inserts — verify insert compatibility against the 880MP Series configuration guide before ordering. The 2-inch conduit opening is the critical interface spec: confirm your conduit trade has the matching stub-up diameter before the floor pour, since correcting a mismatched conduit after concrete placement is a significant change order. For broader structured cabling and AV infrastructure planning, review the floor box category to compare depth and conduit options across the series.

Frequently Asked Questions

Q: Is the Middle Atlantic 880MP2 TAA compliant?

A: Yes. The 880MP2 is confirmed TAA compliant, satisfying Trade Agreements Act procurement requirements for federal, state, and qualifying education projects.

Q: What conduit size does the 880MP2 accept?

A: The 880MP2 is designed for a 2-inch conduit opening, which aligns with standard 2-inch EMT or rigid conduit used in commercial concrete floor installations.

Q: What are the exact dimensions of the 880MP2?

A: Width 4.13 inches (10.5 cm), Height 6.25 inches (15.9 cm), Depth 8.25 inches (21 cm).

Q: Is the 880MP2 a metallic or non-metallic floor box?

A: The 880MP2 is a non-metallic (plastic) floor box, which reduces corrosion risk in concrete environments and lowers weight during pre-pour setting.

Q: What series does the 880MP2 belong to, and are compatible covers available?

A: The 880MP2 is part of the Middle Atlantic ModuLink 880MP Series. Compatible covers and inserts from the same series are designed to fit this box — confirm insert compatibility with the 880MP Series configuration guide before ordering.

Karl Wilson

The 880MP2 is one of those spec items that causes real problems when it gets overlooked at rough-in. The 2-inch conduit opening is the fixed constraint — once the concrete is poured, there's no adjusting it. I've seen integrators order the box on-site only to find the conduit trade has stubbed up 1.5-inch, or the opposite. The 4.13-inch width is also narrower than most round floor boxes in this depth class, which matters on raised-access flooring or tile grids with tight module spacing.

Technical Highlights:

• 2-Inch Conduit Opening: Matches standard commercial conduit spec — verify with the electrical sub before the pour, not after. This single dimension drives the whole rough-in coordination.
• Non-Metallic Body: Plastic construction won't corrode in wet-set concrete or in slabs with moisture migration. For security and AV low-voltage runs, non-metallic also eliminates bonding/grounding questions that come up with metal boxes in some jurisdictions.
• TAA Compliance: Confirmed on the 880MP2 — clears procurement on GSA schedules and federal/education specs without a separate waiver. Worth calling out on your submittal package.

Deployment Considerations:

• The 8.25-inch depth requires adequate slab thickness — confirm finished floor depth before specifying on thin slabs or post-tension decks where penetration depth is constrained.
• The 880MP2 is the box only — covers, power modules, and data inserts are separate 880MP Series components. Spec the complete assembly, not just the box, to avoid a cover mismatch at finish-out.

The 880MP2 is the right call on new-construction commercial projects — conference centers, SOCs, and open-plan offices — where the floor pour is still ahead and the low-voltage conduit layout is being coordinated with the EC. It's a poor fit for retrofit work where the slab is already poured and the conduit stub-up diameter isn't a 2-inch.