Middle Atlantic NM Entrance END Fitting P - PN10F21WH

Middle Atlantic PN10F21WH Eclipse PN10 Entrance End Fitting for Cable Management Raceway

Overview

The Middle Atlantic PN10F21WH is the entrance end fitting for the Eclipse PN10 non-metallic cable management raceway series. At 3-7/8" L x 7/8" H, it caps and transitions the open end of your raceway run where cables enter or exit — preventing edge abrasion, projecting a finished appearance, and providing controlled entry points for 1/2" or 3/4" conduit trade-size connections. If you're running cable management raceway through commercial security or AV infrastructure and need a code-friendly, clean termination at the raceway endpoint, the PN10F21WH is the piece that closes out the installation.

Non-metallic construction in white keeps it electrically inert — no grounding concerns at raceway transitions, no galvanic interaction with aluminum or PVC pathways — and the white finish integrates with standard suspended-ceiling and wall-surface raceway installations without standing out. This is the detail component that separates a professional cable pull from a rough-cut end sitting exposed in a hallway or IT closet.

Key Features

• 1/2" and 3/4" Concentric Trade-Size Knockouts: Two knockout sizes in a single fitting means you're not committed to a conduit size at rough-in. Knock out the 1/2" or 3/4" opening on-site to match the conduit you're actually pulling — eliminates the need to stock two SKUs for different conduit gauges on the same job.
• Includes PN153R Reducer Adapter: The reducer ships in the box, so smaller-diameter cable bundles or conduit transitions are handled without a separate hardware order. On multi-drop cable runs where conduit size varies by zone, this adapter gives you the flexibility to downsize without a trip back to the supply house.
• Non-Metallic Construction: Molded polymer construction means no sharp metal burrs at the entry point — a real factor for Cat6 and low-voltage cable where jacket nicks at the raceway entrance create callbacks. It also means no corrosion in humid environments like parking structures or mechanical rooms where metallic fittings can oxidize over time.
• White Finish: Matches standard white raceway and ceiling tile grid colors. In commercial office, retail, and institutional installations, an unmatched fitting color on an otherwise clean surface is the kind of detail that gets flagged on punch lists. The PN10F21WH blends with the PN10 series and most common surface raceway finishes.
• Eclipse PN10 Series Compatibility: Designed as a purpose-built fitting for the PN10 raceway family — not a universal adapter. Fitment is tight and correct, no shimming or improvised attachment needed, which matters when fittings are going in above ceiling tiles or inside furniture-mounted raceways where you can't easily revisit.
• Compact 3-7/8" x 7/8" Profile: The fitting's footprint stays within the raceway's own profile — it doesn't project sideways or require clearance beyond the raceway channel itself. In constrained pathways (alongside cable trays, behind equipment panels, inside modular furniture) this keeps the installation within its allocated space.

Integration & Compatibility

The PN10F21WH is engineered for the Middle Atlantic Eclipse PN10 raceway product family. It installs at the end of a PN10 raceway run as an entrance transition — where cables feed in from a conduit stub, junction box, or open cable drop. The concentric knockouts support 1/2" EMT or NM conduit and 3/4" EMT or NM conduit trade sizes, covering the majority of low-voltage rough-in conduit work in commercial installations.

For integrators building out structured cabling, access control wiring, or camera cable runs within surface-mount cable management raceways, this fitting is the standard endpoint component. Pair it with the appropriate PN10 raceway couplings, inside/outside corners, and tee fittings from the Eclipse family to complete a fully matched installation. For PoE camera deployments where you're also managing power and data in the same surface raceway, review your PoE switch cabling plan to confirm conduit sizing aligns with cable bundle diameter before specifying the knockout size.

What's in the Box

• 1x PN10F21WH Eclipse PN10 Entrance End Fitting (white, non-metallic)
• 1x PN153R Reducer Adapter

Frequently Asked Questions

Q: What raceway series is the PN10F21WH designed for?

A: The PN10F21WH is purpose-built for the Middle Atlantic Eclipse PN10 cable management raceway series. It functions as the entrance end fitting at the terminal point of a PN10 raceway run.

Q: What conduit trade sizes do the knockouts support?

A: The PN10F21WH includes concentric knockouts for both 1/2" and 3/4" trade-size conduit. You select the size on-site by removing the appropriate knockout at installation.

Q: Is the PN153R Reducer Adapter included, or does it need to be ordered separately?

A: The PN153R Reducer Adapter is included in the box with the PN10F21WH — no separate order required.

Q: Is the PN10F21WH metallic or non-metallic?

A: Non-metallic. The fitting is molded polymer, which eliminates grounding concerns at the raceway transition and prevents corrosion in humid environments.

Q: What are the dimensions of the PN10F21WH?

A: The fitting measures 3-7/8" in length by 7/8" in height, staying within the profile of the PN10 raceway channel.

Karl Wilson

The PN10F21WH is one of those fittings that integrators order without much thought — until they're on-site and realize the entrance end fitting is the one component that determines whether a raceway run looks finished or improvised. The concentric 1/2" and 3/4" knockouts in this single piece are what I focus on during pre-job layout: on mixed-conduit jobs where one zone pulls 1/2" EMT and another pulls 3/4", stocking one PN10F21WH covers both transitions rather than splitting the BOM across two SKUs.

Technical Highlights:

• Concentric Dual Knockouts (1/2" and 3/4"): Both sizes in one fitting — decide on-site which knockout to remove based on actual conduit diameter. Eliminates the back-order risk of having the wrong size at closeout.
• PN153R Reducer Included: The reducer ships with the fitting, not as a separate line item. On jobs where cable bundle diameter is smaller than the knockout opening, the adapter is already in hand — no secondary hardware order, no delay.
• Non-Metallic, 3-7/8" x 7/8" Profile: Stays within the PN10 raceway footprint. No metal edges to nick low-voltage cable jackets at the entry point, and the profile doesn't extend beyond the channel — relevant when raceways run through tight furniture or panel cutouts.

Deployment Considerations:

• Verify conduit stub height aligns with the 7/8" fitting height before rough-in — if the conduit stub protrudes more than the fitting depth accommodates, you'll need an offset nipple to transition cleanly.
• The PN10F21WH is white only; if your raceway run is a non-white PN10 variant, confirm color matching with the broader Eclipse PN10 accessory lineup before ordering in bulk.

This fitting is the right spec for commercial security installations — access control conduit drops, IP camera cable runs, structured cabling pulls — anywhere you're terminating a PN10 surface raceway at a wall penetration or junction box and need a code-clean, finished entry point that holds up to repeated cable pulls without cracking or deforming.