Panduit FREC12X4LYL FiberRunner 12x4 End Cap

The Panduit FREC12X4LYL end cap provides the critical closure point for 12x4 FiberRunner cable routing systems in data centers and telecom central offices. This polycarbonate/ABS hybrid component seals open channel terminations and fitting ends to maintain physical protection for high-performance copper and fiber optic cabling throughout the pathway. Yellow finish matches Panduit's standard FiberRunner color coding for network infrastructure visibility. UL 2024A certification for optical fiber cable routing assemblies ensures this end cap meets National Electrical Code Article 770 requirements for fiber installation in plenum, riser, and general-purpose spaces.

Key Features

• 12x4 FiberRunner system compatibility — purpose-built for Panduit's 12-inch-wide by 4-inch-deep cable channel
• Polycarbonate/ABS construction — impact-resistant blend withstands installation handling and environmental stress in equipment rooms
• UL 2024A Listed optical fiber cable routing assembly component — meets NEC Article 770 pathway requirements
• Telcordia GR-63-CORE NEBS Level 3 compliance — validated for earthquake, thermal shock, and vibration exposure in telecom installations
• RoHS-compliant material formulation — eliminates lead, mercury, cadmium, and restricted flame retardants
• Yellow identifier finish — maintains visual network infrastructure zone coding in multi-pathway facilities

FiberRunner end caps serve a structural and safety role that installers frequently underestimate during initial pathway design. Every open channel termination — whether at wall penetrations, equipment rack transitions, or mid-run service access points — creates a physical hazard for cable jacket abrasion and a code compliance gap under NFPA 70. The FREC12X4LYL seats into the 12x4 channel profile with Panduit's snap-lock retention geometry, eliminating fastener requirements and allowing removal for future pathway extensions without cutting or destructive disassembly. The 13.79-inch width spans the full outside dimension of the 12x4 trough, while the 5.28-inch height creates an enclosed termination that prevents cable spillover during high-density fills. Polycarbonate/ABS material selection balances impact resistance with long-term dimensional stability — critical for pathways installed above suspended ceilings or in seismically active regions where Telcordia GR-63-CORE Zone 4 certification applies.

Data center and telecom deployments rely on FiberRunner end caps at every structured cabling junction: ladder rack to horizontal trough transitions, vertical riser entries into floor-level distribution frames, and MDA-to-HDA pathway handoffs where jurisdiction changes or cable types shift. The yellow colorway integrates with Panduit's FiberRunner color taxonomy, typically assigned to general network infrastructure or caution zones in facilities using color-coded pathway systems. Unlike generic raceway end plates that require field drilling and sheet metal screws, the FREC12X4LYL installs tool-free via integral snap clips that engage the channel's side rail profile — a detail that matters when pathways run 15 feet overhead or in congested ceiling spaces where ladder access is limited. Carton quantity of 5 units matches typical per-floor installation volumes for medium-density telecom rooms.

UL 2024A certification covers this end cap as part of a complete optical fiber cable routing assembly, which means the pathway maintains its plenum or riser fire rating when FREC12X4LYL end caps close all terminations. Telcordia GR-63-CORE testing subjects the assembly to earthquake simulation (Zone 4 seismic), temperature cycling (-40°C to +65°C), and office vibration exposure — the validation protocol that telecom carriers and colocation providers require for central office builds. This end cap ships individually packaged with 5-piece contractor cartons for project staging; coordinate with 12x4 FiberRunner straight sections (available in 6-foot and 10-foot lengths) and junction fittings to complete pathway bills of material.