Panduit FRFWC12X4LBL FiberRunner 4-Way Cross Fitting 12x4

Overview

The Panduit FRFWC12X4LBL is a four-way cross fitting for the FiberRunner™ 12x4 fiber routing system, designed specifically for data centers and central telecommunications offices where horizontal cable paths intersect. It connects to 12x4 FiberRunner channels and fittings on all four sides, creating a clean, managed crossover junction without improvised splices or exposed bend points. If you're building out structured fiber distribution in a raised-floor data center or telecom room, this is the fitting that keeps intersecting runs contained and compliant.

Constructed from polycarbonate/ABS in black, the FRFWC12X4LBL measures 22.25 inches in overall length and 4.22 inches in height (107.2 mm), sized to mate directly with standard 12x4 FiberRunner channel. It ships as a single unit (package quantity: 1), so quantity planning maps directly to the number of four-way intersections in your routing layout.

Key Features

• Four-Way Horizontal Cross Configuration: Creates a true four-directional junction with two 12x4 outputs, so intersecting fiber runs stay fully enclosed at the crossover point. This eliminates the exposed slack loops or makeshift bridging that accumulate at busy cross-aisle junctions in dense data center deployments.
• FiberRunner 12x4 System Integration: Designed exclusively for use with the FiberRunner 12x4 system — the 12x4 profile (approximately 300mm x 100mm nominal) means ample capacity for high-count fiber bundles traversing the intersection. Mixing channel sizes at a junction is a common field mistake; this fitting keeps you dimensionally consistent.
• Polycarbonate/ABS Construction: This material combination provides the impact resistance and dimensional stability needed in live data center environments where cable managers are regularly accessed for MACs. It's not decorative — polycarbonate/ABS handles the mechanical loads of populated fiber trays without warping or cracking over time.
• RoHS Compliance: Meets RoHS requirements, which matters for enterprise procurement in regulated industries and for facilities with environmental compliance requirements on installed infrastructure materials.
• UL-Listed Cable Routing Assemblies (to 2024A): UL listing for optical fiber cable guidance assemblies covers this fitting for use in building code-compliant installations. The 2024A designation is the current NEC article governing optical fiber raceways — relevant to any AHJ inspection or insurance requirement tied to fiber infrastructure.
• Telcordia GR-63-CORE and NEBS Level 3 Compliance: These standards govern seismic and environmental performance for network equipment building systems. NEBS Level 3 is the carrier-grade bar — if you're installing in a colocation facility or carrier central office with seismic zone requirements, this fitting has been tested to those criteria, not just assumed compliant.
• Black Finish: Matches standard black FiberRunner channel runs, maintaining visual continuity in installations where color coding or uniform appearance is specified. Avoids the aesthetic inconsistency of mixing finish colors across a structured cabling system.

Integration & Compatibility

The FRFWC12X4LBL is engineered for use within the Panduit FiberRunner ecosystem. It mates with 12x4 FiberRunner straight sections, bends, tees, and end caps — all components within the 12x4 channel family. It does not cross-fit to 6x4, 4x4, or other FiberRunner profiles, so confirm your installed channel size before ordering. For structured fiber cable management in data centers, pair this cross fitting with FiberRunner straight sections, 90-degree bends, and tee fittings to build out a complete routing grid.

When planning a multi-rack data center layout, the number of four-way cross fittings equals the number of interior grid intersections — a simple topology count before procurement prevents short-ordering on fittings mid-installation. If your layout uses predominantly T-intersections with only one or two through-runs crossing, evaluate whether a tee fitting meets the need before specifying a full four-way cross.

For broader infrastructure planning, review a structured cabling planning guide to map channel routes before committing to fitting quantities. Complementary components include FiberRunner straight sections and fiber raceway accessories for complete runs.

What's in the Box

• 1x Panduit FRFWC12X4LBL FiberRunner 12x4 Four-Way Cross Fitting

Frequently Asked Questions

Q: What channel size does the FRFWC12X4LBL fit?

A: The FRFWC12X4LBL is designed exclusively for the FiberRunner 12x4 system. It connects to 12x4 FiberRunner channels and fittings only — it is not compatible with 6x4, 4x4, or other FiberRunner profile sizes.

Q: Is the FRFWC12X4LBL RoHS compliant?

A: Yes. The FRFWC12X4LBL meets RoHS requirements as stated in the product standards documentation.

Q: Does the FRFWC12X4LBL meet NEBS Level 3 requirements?

A: Yes. The fitting is compliant with Telcordia GR-63-CORE and Network Equipment Building Systems (NEBS) Level 3 criteria, making it suitable for carrier-grade and colocation environments with seismic zone requirements.

Q: What is the UL listing for this fitting?

A: The FRFWC12X4LBL is part of UL-listed optical fiber cable guidance assemblies rated to NEC Article 2024A, which governs optical fiber raceways in building code-compliant installations.

Q: How many units come in a package?

A: Each order of the FRFWC12X4LBL ships as one (1) fitting. Plan quantity based on the number of four-way intersections in your fiber routing layout.

Q: What material is the FRFWC12X4LBL made from?

A: The fitting is constructed from polycarbonate/ABS — a combination that provides impact resistance and dimensional stability suitable for data center environments where cable management is regularly accessed.