Panduit FRIVRA6X4LYL FiberRunner 6x4 Inside Vertical 90° Fitting
Overview
The Panduit FRIVRA6X4LYL is the inside-radius half of a two-piece vertical 90-degree bend for the Panduit FiberRunner® cable management system. It creates a controlled upward turn from a horizontal run — pair it with the outside fitting FROVRA6X4LYL to complete the plane change. If you are routing fiber from a horizontal cable tray up to an overhead pathway or down into a floor chase in a fiber cable management system, this is the component that handles the inside radius of that turn. Without the matched inside fitting, bend-radius protection is incomplete and fiber stress at the corner becomes a real risk.
Sized for the 6x4 FiberRunner channel (6 inches wide, 4 inches tall), this fitting handles the capacity demands typical of high-density data center spine runs and telecom central offices. Yellow color aligns with standard fiber identification conventions, making it straightforward to distinguish fiber pathways from copper in mixed-media environments.
Key Features
- 6x4 Channel Compatibility: Designed exclusively for the 6x4 FiberRunner system — the largest standard FiberRunner channel, suited to high-count fiber trunk runs where smaller 2x2 or 4x4 channels would be undersized. Verify your installed channel size before ordering; this fitting does not adapt to other channel widths.
- Inside-Radius Geometry (8.64 in. × 7.08 in.): At 219.4 mm tall and 179.8 mm wide, the inside fitting maintains the minimum bend radius required to prevent attenuation in singlemode and multimode fiber — critical on long backbone runs where even small bends accumulate loss.
- Polycarbonate/ABS Construction: The PC/ABS blend delivers impact resistance and dimensional stability under the thermal cycling common in active data centers, without the weight of metal raceway fittings. Easier to handle during overhead installation.
- UL Listed (2024A): Listed for fiber optic cable routing assemblies — satisfies the code compliance requirements most data center general contractors and AHJs require before final sign-off on structured cabling installations.
- NEBS Level 3 Compliance: Meets Telcordia GR-63-CORE seismic and environmental test requirements. For carrier-grade and telecom central office deployments where NEBS qualification is a contract requirement, this is documented and verifiable — not just a marketing claim.
- RoHS Compliant: Meets EU RoHS restrictions on hazardous substances, relevant for projects with environmental compliance specifications or international procurement requirements.
- Sold as Single Unit (Package Qty: 1): Ordered individually so you can match exact quantities to your routing plan. Carton quantity is 5 if you are stocking for a large rollout.
Integration & Compatibility
The FRIVRA6X4LYL works exclusively within the Panduit FiberRunner® 6x4 system. It must be paired with the outside vertical fitting FROVRA6X4LYL — the inside fitting alone does not complete the bend enclosure. Straight sections, horizontal bends, tees, and end caps in the same 6x4 family connect directly without adapters. For network infrastructure planning involving structured cabling and network switching infrastructure, confirm the full pathway bill of materials includes both inside and outside fittings at each vertical transition point.
Frequently Asked Questions
Q: Does the FRIVRA6X4LYL work as a standalone fitting, or does it require a matching outside piece?
A: It requires the matching outside vertical fitting FROVRA6X4LYL to complete the 90-degree bend enclosure. The inside fitting alone does not enclose the cable pathway at the corner.
Q: What channel size does the FRIVRA6X4LYL fit?
A: It is sized for the 6x4 FiberRunner channel only — 6 inches wide by 4 inches tall. It is not compatible with 2x2, 4x4, or other FiberRunner channel sizes.
Q: Is the FRIVRA6X4LYL NEBS compliant?
A: Yes. It meets the relevant test requirements in Telcordia GR-63-CORE and qualifies at NEBS (Network Equipment Building Systems) Level 3, making it suitable for carrier-grade and telecom central office installations.
Q: What are the overall dimensions of the FRIVRA6X4LYL?
A: Overall height is 8.64 inches (219.4 mm) and overall width is 7.08 inches (179.8 mm).
Q: Is the FRIVRA6X4LYL RoHS compliant?
A: Yes, it is RoHS compliant and UL listed under standard 2024A for fiber optic cable routing assemblies.
The FRIVRA6X4LYL is the inside-radius component of a two-piece vertical transition — and the piece most often forgotten on a bill of materials. At 8.64 inches tall and 7.08 inches wide, it is sized to maintain fiber bend-radius compliance on a 6x4 channel, which is the right pathway for high-count backbone runs in dense data center environments.
Technical Highlights:
- NEBS Level 3 (GR-63-CORE): Documented seismic and environmental qualification — a hard contract requirement in carrier and central office builds, not just a checkbox most integrators notice after procurement.
- UL Listed 2024A: AHJ sign-off on fiber routing assemblies is straightforward with a UL listing in hand; unlisted fittings can stall final inspection on data center buildouts.
- PC/ABS Material: Lighter than metal raceway alternatives and dimensionally stable under thermal cycling — relevant when you are installing dozens of fittings overhead in an active hot-aisle/cold-aisle environment.
Deployment Considerations:
- Always order the FROVRA6X4LYL outside fitting at the same time — the FRIVRA6X4LYL ships as a single unit (package qty 1) and the vertical transition is incomplete without both halves.
- Yellow color is the FiberRunner convention for fiber; if your site uses a different color-coding standard, confirm before ordering — this fitting is not available in alternate colors in this SKU.
Best fit for new data center spine builds and telecom central office projects where NEBS Level 3 documentation is a contract deliverable and high-density fiber pathways need a verified, code-compliant vertical transition at the 6x4 channel scale.
