Panduit FRFWCSC4LYL FiberRunner 4-Way Cross Split Cover
Overview
The Panduit FRFWCSC4LYL is a split cover designed specifically for the 4x4 FiberRunner 4-way cross fitting, used in data centers and telecommunications central offices where structured fiber cable management is a baseline requirement. Sized at 12.95 × 12.95 inches (328.9 mm square) with a 2.15-inch (54.6 mm) profile, it snaps over the 4-way cross to provide enclosed cable routing while still allowing technicians to open access points for adding or pulling cables without disturbing adjacent runs. If you are building or maintaining a fiber routing system on overhead ladder rack or wall-mounted channels and need to keep the cross-junction covered between moves, this is the component that closes that gap.
The FRFWCSC4LYL ships in yellow — the standard FiberRunner color coding that distinguishes fiber pathways from copper runs in high-density environments. That visual separation matters in busy facilities where technicians are working quickly and need to identify cable categories at a glance without tracing individual fibers.
Key Features
- Split Cover Design — Open-Access Without Full Disassembly: The cover creates openings that let you add or remove cables at the 4-way cross junction without pulling the entire cover off the fitting. In a live data center where cables are being added incrementally, this means less disruption to adjacent runs during MAC (moves, adds, changes) work.
- 12.95 × 12.95 Inch Footprint (328.9 mm): Sized for the 4x4 FiberRunner cross, this cover fills the full junction area so there are no exposed gaps where cables could snag, be snagged by personnel, or accumulate dust over time. Verify your cross fitting matches the 4x4 FiberRunner system before ordering — this cover is not interchangeable with 2x2 or 4x2 cross variants.
- 2.15-Inch Height Profile (54.6 mm): The relatively low profile keeps overhead clearance predictable in ceiling-mounted installations. Where rack space and above-ceiling clearance are constrained, a bulky cover creates interference with adjacent trays or structure — the 2.15-inch envelope fits within standard FiberRunner stack heights.
- Polycarbonate/ABS Construction: The material combination gives you impact resistance from polycarbonate and the dimensional stability and moldability of ABS. In a data center environment, the cover handles the occasional ladder or equipment bump without cracking. It is not rated for outdoor or wet-location use — this is an indoor data center and telecom room component.
- Yellow Color — FiberRunner System Identification: Yellow is the Panduit FiberRunner system color, giving your installation a consistent visual language. If your facility uses color coding for cable tray identification (fiber vs. copper vs. power), this integrates into that convention without requiring additional labeling at the cross point.
- UL Listed (UL 2024A) for Fiber Cable Routing Assemblies: UL 2024A listing for optical fiber cable routing assemblies means the component has been independently evaluated for its intended use. This matters for AHJ inspections and for facilities that require listed components in the cable plant — a generic plastic cover does not carry this listing.
- NEBS Level 3 Compliant (Telcordia GR-63-CORE): NEBS Level 3 is the full environmental qualification required for equipment deployed in central office and carrier environments — covering seismic, thermal, fire, and airborne contaminant performance. If you are deploying in a carrier CO, regional data center, or any facility that mandates NEBS compliance, the FRFWCSC4LYL meets the bar without requiring a variance or substitution waiver.
- RoHS Compliant: Meets the EU Restriction of Hazardous Substances directive, which is a procurement requirement for many enterprise and government buyers and simplifies disposal at end of life.
Integration and Compatibility
The FRFWCSC4LYL is engineered exclusively for the Panduit 4x4 FiberRunner system. It pairs directly with the FiberRunner 4-way cross fitting — do not attempt to fit it on a 2x2 or mixed-size cross without verifying dimensional compatibility first. The wire routing and cable management category includes the full range of FiberRunner straights, bends, tees, and end caps; this cover is the dedicated junction closure for the 4-way cross configuration. For complete installations, pair with FiberRunner horizontal and vertical bend covers, straight section covers, and tee covers to maintain a fully enclosed, consistent fiber pathway throughout the run. The system's yellow color applies across all cover components, so the visual continuity holds from straight runs through every transition fitting.
For data center deployments that require structured cable management at the distribution layer, the FiberRunner system — and this cross cover specifically — provides the enclosed pathway that open ladder rack does not. If your design calls for covered fiber pathways from the MDA to the HDA or from patch panels to active equipment rows, the 4-way cross fitting with this cover handles the routing junction where pathways branch in multiple directions.
What's in the Box
- 1x Panduit FRFWCSC4LYL FiberRunner 4x4 Split Cover for 4-Way Cross (Yellow)
Note: Sold individually (Package Quantity: 1). Carton quantity is 5 — ordering multiples ships in full cartons where quantities align.
Frequently Asked Questions
Q: What FiberRunner fitting does the FRFWCSC4LYL cover, and will it fit a 2x2 or 4x2 cross?
A: The FRFWCSC4LYL is designed specifically for the Panduit 4x4 FiberRunner 4-way cross fitting. It is not compatible with 2x2 or 4x2 cross variants — size and clip geometry differ. Verify your installed cross fitting is the 4x4 FiberRunner model before ordering.
Q: Is the FRFWCSC4LYL NEBS Level 3 compliant?
A: Yes. The FRFWCSC4LYL meets the requirements for relevant tests in Telcordia GR-63-CORE and NEBS (Network Equipment Building Systems) Level 3, making it suitable for carrier central office and telecommunications facility deployments where NEBS qualification is mandated.
Q: Is the FRFWCSC4LYL UL Listed?
A: Yes — it is UL Listed under UL 2024A for fiber optic cable routing assemblies. This listing is relevant for AHJ inspections and for enterprise or carrier facilities that require listed cable management components in the structured cabling plant.
Q: What are the overall dimensions of the FRFWCSC4LYL?
A: The cover measures 12.95 × 12.95 inches (328.9 × 328.9 mm) in footprint with an overall height of 2.15 inches (54.6 mm). These dimensions correspond to the 4x4 FiberRunner cross fitting envelope.
Q: How many covers come in a package, and what is the carton quantity?
A: The FRFWCSC4LYL ships with a package quantity of 1 (one cover per unit). The carton quantity is 5, so bulk orders that align to multiples of 5 will ship in full cartons.
Q: Is the FRFWCSC4LYL RoHS compliant?
A: Yes — the FRFWCSC4LYL is RoHS compliant, meeting the EU Restriction of Hazardous Substances directive. This is relevant for enterprise procurement policies and end-of-life disposal requirements.
The detail that most installers miss on the FRFWCSC4LYL is the NEBS Level 3 qualification. Most cable management covers at this price point carry nothing beyond UL listing — having Telcordia GR-63-CORE seismic and environmental compliance on a fiber cross cover means you can specify this component into carrier CO builds without a separate qualification process. That saves time on submittals and avoids the 'approve a substitute' back-and-forth with the CO facility manager.
Technical Highlights:
- UL 2024A Listing: Independent listing for fiber cable routing assemblies — not a self-declared rating. Required by many AHJs and enterprise cable plant standards; a generic cover does not substitute.
- 12.95 × 12.95 in. (328.9 mm) Footprint: Sized to close the full 4x4 FiberRunner cross junction with no exposed gap — cable snag points and dust accumulation at open junctions are real maintenance issues in high-uptime environments.
- Polycarbonate/ABS Material: PC gives impact resistance, ABS gives dimensional stability under repeated thermal cycling. In a data center that runs at controlled temp year-round, the material holds its clip geometry so the cover doesn't loosen over time.
Deployment Considerations:
- This cover is sold as a single unit (Package Quantity: 1) but cartons pack 5 — if you are covering multiple cross fittings in a large install, order in multiples of 5 to avoid partial-carton shipping complications and keep spare covers on the shelf for future MACs.
- The split cover design allows cable access without full removal, but 'access openings' are fixed by the molded design — if your cross fitting has a high fill ratio approaching full capacity, plan cable routing before closing the cover, not after.
The FRFWCSC4LYL is the right specification choice for carrier central offices, regional data centers under NEBS compliance mandates, and any enterprise data center where the structured cabling design calls for fully enclosed, color-coded FiberRunner fiber pathways with listed components throughout.
