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Middle Atlantic 525ACT Four-Piece In-Floor Communication Service Fitting

The Middle Atlantic 525ACT is a die-cast aluminum communication service fitting designed for in-floor cable management systems where structured cabling infrastructure needs a clean, durable, and reconfigurable floor access point. If you're routing low-voltage communication runs beneath raised flooring or through slab penetrations, the 525ACT provides a commercial-grade termination point that holds up to daily foot traffic without looking like an afterthought.

Overview

The 525ACT belongs to Middle Atlantic's 525 Series of in-floor cable management fittings, engineered for commercial and institutional environments where cable access points must be both functional and aesthetically consistent with finished flooring. The four-piece construction allows the fitting to be disassembled and serviced in place — a practical advantage when wiring changes are needed without cutting into the floor. This is the kind of fitting you spec into AV infrastructure, security system cable runs, and communications closet floor penetrations where longevity and replaceability matter.

For integrators building out Middle Atlantic structured cabling solutions or AV infrastructure, the 525ACT slots into broader in-floor system planning alongside compatible floor boxes and raceway components.

Key Features

• Die-Cast Aluminum Construction: Aluminum die-casting delivers a rigid, dimensionally stable housing that won't flex or crack under rolling loads common in commercial spaces. Unlike plastic fittings, die-cast aluminum resists deformation from furniture casters and foot traffic — meaning the fitting stays flush and functional years after installation.
• 27 cu. in. (442 ml) Capacity: With 27 cubic inches of interior volume, the 525ACT accommodates multiple cable terminations, connectors, and service loops without crowding. That's meaningful headroom when you're landing shielded Cat6A, coax, and low-voltage control cables in the same box — you won't be forcing tight bends that degrade signal integrity.
• Four-Piece Modular Design: The four-piece assembly with interchangeable faceplates means you can swap insert modules without pulling the entire fitting from the floor. Field changes — adding an HDMI port, swapping a keystone, or reconfiguring for a different connector type — become a few-minute job rather than a floor repair.
• Interchangeable Faceplates: Faceplate interchangeability lets you match the fitting's surface to different connector standards or aesthetic requirements. For multi-phase AV and security deployments where communication needs evolve, this future-proofs the floor infrastructure without requiring new rough-in work.
• Satin Finish: The satin finish reduces glare in lit commercial environments and blends with standard commercial flooring hardware. In conference rooms, lobbies, and open offices — where aesthetics factor into acceptance — this is the finish that gets approved without pushback from facilities teams.
• In-Floor Mounting: Designed specifically for flush in-floor installation, the 525ACT integrates with standard in-floor system rough-in boxes and conduit pathways. The flush profile eliminates trip hazards and keeps the cable access point invisible until it's needed.
• 525 Series Compatibility: As part of the 525 Series, this fitting is designed to work within Middle Atlantic's coordinated ecosystem of in-floor components — relevant when you're building a multi-outlet floor box installation and need consistent dimensions, finish, and interoperability across all floor access points on a project.

Integration & Compatibility

The 525ACT is built for in-floor cable management system installations and is compatible with Middle Atlantic's 525 Series floor box ecosystem. It fits standard commercial rough-in applications and supports a range of low-voltage communication cable types, making it appropriate for security system home-runs, AV distribution, and structured data cabling in commercial, government, and institutional settings. Integrators specifying this fitting alongside network infrastructure or access control cable runs benefit from a termination point that holds its form factor under real-world conditions.

The interchangeable faceplate design is particularly relevant when working across multiple trades or phased construction schedules — the rough-in can be completed early, with final faceplate selection deferred until the cabling standard is confirmed.

Frequently Asked Questions

Q: What is the interior capacity of the Middle Atlantic 525ACT?

A: The 525ACT provides 27 cubic inches (442 ml) of interior volume, giving you adequate space for cable terminations, connectors, and service loops without forcing tight bends.

Q: What material is the 525ACT housing made from?

A: The 525ACT is constructed from die-cast aluminum with a satin finish, providing durability under commercial floor traffic conditions.

Q: Can the faceplates on the 525ACT be swapped out after installation?

A: Yes. The four-piece design includes interchangeable faceplates, so you can reconfigure the insert modules or change connector types without removing the fitting from the floor.

Q: What series does the 525ACT belong to, and does it work with other Middle Atlantic in-floor components?

A: The 525ACT is part of Middle Atlantic's 525 Series of in-floor systems, designed for compatibility with other 525 Series components including floor boxes and in-floor cable management accessories.

Q: Is the 525ACT intended for surface-mount or in-floor installation?

A: The 525ACT is designed exclusively for in-floor installation, providing a flush mount profile suitable for commercial flooring environments.

Eden Phillips

The Middle Atlantic 525ACT earns its place on in-floor cable management specs primarily because of the 27 cu. in. interior volume — that's enough real estate to land multiple cable types and maintain proper bend radius, which matters when you're mixing Cat6A and coax in the same penetration point. I've seen undersized floor fittings force tight coax bends that show up as return loss issues months after commissioning; the 525ACT gives you the margin to avoid that.

Technical Highlights:

• Die-Cast Aluminum Body: Aluminum die-casting holds tight dimensional tolerances under repeated load, keeping the fitting flush and the faceplate seated correctly even in high-traffic zones like conference rooms and trading floors.
• 27 cu. in. (442 ml) Capacity: Sufficient volume for multi-cable terminations with service loops — avoids the performance degradation and future serviceability problems caused by overstuffed floor boxes.
• Four-Piece Modular Assembly: Field-swappable faceplate modules let you adapt the communication port layout without floor surgery — a real time-saver on phased construction projects where cabling standards aren't finalized at rough-in.

Deployment Considerations:

• Confirm the rough-in box dimensions match 525 Series specifications before pouring or closing floors — the in-floor mounting design is not forgiving of dimensional mismatches at that stage.
• The satin finish blends well in standard commercial interiors but verify with the flooring finish spec before committing to quantity; some high-gloss or stone tile environments may warrant a different finish option.

The 525ACT is the right call for conference rooms, training centers, and open-plan offices where floor power and communications access points are part of the base building infrastructure and need to hold up through multiple tenant cycles without requiring floor core replacement.