Middle Atlantic NM Transition FTG Right 5 - 5408R-WH

Middle Atlantic 5408R-WH Non-Metallic Raceway Right Transition Fitting

Overview

The Middle Atlantic 5408R-WH is a right-hand transition fitting designed for the 5400-series non-metallic (NM) raceway system. At 6.8 in wide and 1.8 in tall, it bridges raceway runs at direction changes — keeping cable management continuous, professional, and code-friendly without resorting to ad-hoc field cuts or exposed wiring at transition points.

For integrators running structured cabling, low-voltage security wiring, or AV signal paths along walls and baseboards, transition fittings like the 5408R-WH are the detail that separates a clean installation from one that draws callbacks. The white finish integrates directly into commercial interiors where painted or white-trimmed walls are the standard — no repainting or touchup required after commissioning.

TAA compliance is verified for the 5408R-WH, which satisfies procurement requirements for federal facilities, GSA projects, and any government-adjacent deployments subject to the Trade Agreements Act. If your bid spec or contract vehicle requires TAA-compliant components throughout, this fitting qualifies without requiring a substitution or waiver.

Key Features

• Right-hand transition geometry (6.8 in × 1.8 in): sized to match the 5400-series raceway profile precisely — no gap at the transition joint that would expose conductors or create a snag point for future cable pulls. The 6.8 in width accommodates the full interior channel width of the raceway body.
• Non-metallic construction: NM fittings eliminate grounding concerns at transition points in low-voltage and Class 2 wiring runs. In environments where metallic raceways would require bonding conductors, NM fittings reduce both labor and materials at each transition point — a real factor on projects with dozens of direction changes.
• White finish: matches standard commercial interior trim and painted drywall without additional finishing. For retail, office, and healthcare environments where a visible raceway must blend rather than stand out, specifying the white variant at bid time avoids post-install painting or color-mismatch punch list items.
• TAA compliant: verified for the 5408R-WH (often searched as 5408R WH), satisfying Trade Agreements Act requirements for federal, state, and municipally-funded projects. Specify this fitting on government bids without a compliance footnote.
• 5400-series system compatibility: designed as a purpose-built component of the Middle Atlantic 5400 NM raceway family. Using matched system fittings rather than generic alternatives ensures consistent interior channel dimensions — critical when you need to pull additional conductors through a completed run post-commissioning.

Integration & Compatibility

The 5408R-WH is a component fitting within the Middle Atlantic 5400 non-metallic raceway system. It is intended for use alongside the 5400-series base and cover sections, other transition fittings in the same family, and compatible inside/outside corner fittings to complete a full raceway layout. For integrators deploying cable management in commercial security, access control, or structured cabling environments, matching fittings to the raceway base model ensures the interior channel cross-section remains consistent throughout the run.

Low-voltage security and AV cabling — including runs from IP cameras, access control readers, and intercom panels — routes cleanly through NM raceway systems when the full fitting set is specified at design. Mixing fitting families or substituting field-fabricated transitions introduces channel mismatches that complicate future cable additions. Pair with the appropriate raceway and cord cover base sections and a compatible network infrastructure layout for a complete low-voltage pathway plan.

Frequently Asked Questions

Q: Is the Middle Atlantic 5408R-WH TAA compliant?

A: Yes. TAA compliance is verified for the 5408R-WH, making it suitable for federal, GSA, and government-funded projects subject to Trade Agreements Act requirements.

Q: What are the dimensions of the 5408R-WH?

A: The 5408R-WH measures 6.8 inches wide (17.3 cm) and 1.8 inches tall (4.6 cm). Depth is not published in the available specification data.

Q: What raceway series is the 5408R-WH designed for?

A: The 5408R-WH is a purpose-built fitting for the Middle Atlantic 5400-series non-metallic raceway system. It should be paired with 5400-series base and cover sections for a matched installation.

Q: What does the 'R' designation mean in 5408R-WH?

A: The 'R' indicates a right-hand transition fitting orientation. For left-hand transitions, a separate fitting in the 5400 family would be required.

Q: Is the 5408R-WH available in colors other than white?

A: The 5408R-WH is the white variant. Other color options (such as ivory or gray) may exist within the 5400 fitting family under different suffix designations — verify with the Middle Atlantic 5400 series product lineup.

Eden Phillips

The detail that separates a professional low-voltage installation from a messy one is often a $3 fitting — and the 5408R-WH is exactly that detail. At 6.8 inches wide, it matches the full interior channel of the Middle Atlantic 5400-series NM raceway, so when you reach a right-hand transition point, the conductor pathway stays continuous without a visible gap or a field-cut patch. I specify this fitting on every government-adjacent security project where the bid spec requires TAA compliance throughout — the 5408R-WH is verified compliant, which keeps the submittal clean.

Technical Highlights:

• 6.8 in channel width: matches the 5400-series interior channel exactly — no reduction in pull capacity at the transition point, which matters when you're adding conductors to a completed run after the walls are finished.
• Non-metallic construction: eliminates grounding and bonding requirements at each transition in Class 2 and low-voltage wiring runs — fewer materials, faster installs, and no NEC bonding conductor to account for in the conduit fill calculation.
• TAA compliance (verified): the 5408R-WH qualifies without a waiver on federal, GSA, and government-contract bids — specify it in the schedule of materials and move on.

Deployment Considerations:

• Right-hand orientation is fixed — order the correct hand before the install crew arrives. Transposing a left-hand and right-hand fitting mid-run means a return trip or a visible workaround that won't pass inspection.
• Depth is not published in the available specification data — confirm physical fit against your specific 5400-series raceway body before committing to a large quantity order on a tight schedule.

This fitting is the right call for commercial security and access control deployments in federal buildings, GSA-leased office space, or any TAA-gated contract where the raceway system is Middle Atlantic 5400 NM and the finish environment is standard white interior. It's a small component with a compliance implication that can hold up a submittal if you get it wrong.