Panduit FRH454X4LYL 45° Horizontal FiberRunner Fitting

The Panduit FRH454X4LYL creates precision 45° horizontal bends in FiberRunner 4x4 pathway systems, snapping directly to channels and adjacent fittings to route fiber bundles around obstacles without exceeding minimum bend radius. Built from LSZH-rated polycarbonate/ABS for data centers and telecom central offices where smoke and toxicity matter during fire events. Measures 9.8" long × 7.86" wide × 4.22" high to maintain the 4x4 system profile. Yellow housing improves pathway visibility during moves/adds/changes in dense rack environments. UL-certified to 2024A for optical fiber cable runway assemblies and Telcordia GR-63-CORE NEBS Level 3 compliant for seismic and thermal cycling in carrier-class installations.

Key Features

• 45° horizontal elbow joins FiberRunner 4x4 channels for controlled direction changes without kinking single-mode or multimode fiber
• LSZH polycarbonate/ABS construction meets low-smoke zero-halogen requirements for enclosed spaces and air-handling plenums
• Snap-fit attachment to 4x4 channel sidewalls and adjacent fittings — no tools required for pathway assembly or reconfiguration
• 4.22" internal height preserves full 4" × 4" cross-section for high-density trunk routing between distribution frames
• Yellow color coding distinguishes single-mode, multimode, or copper pathways in multi-system layouts
• UL 2024A listing for optical fiber cable runway assemblies ensures code compliance for inspected installations
• Telcordia GR-63-CORE NEBS Level 3 qualification validates performance under seismic Zone 4 and –40°C to +65°C thermal cycling for CO and headend deployments
• RoHS compliant for restriction-of-hazardous-substances regulations in EU and state-level markets

The FRH454X4LYL handles the 45° horizontal plane change that occurs when a vertical riser meets a horizontal overhead run or when pathways navigate around structural columns in the hot aisle. The elbow's radiused interior maintains the 1.5" minimum bend radius required by TIA-568 for OM3/OM4/OM5 multimode and OS2 single-mode fiber, preventing attenuation spikes from micro-bending. Polycarbonate sidewalls resist impact from ladder contact during installs and provide flame rating without emitting corrosive halogen gases — a code requirement in many international data centers and a best practice in U.S. hyperscale facilities. The 7.86" width dimension accounts for the channel width plus the snap-latch clearance; plan 8" of lateral space when routing around I-beams or cable trays.

Snap-fit tabs on both ends mate with the molded slots on FiberRunner 4x4 straight channels (part families FRN4X4 and FRRL4X4) and with other fittings in the system — tees, crosses, and vertical elbows. No screws or adhesive simplifies adds when expanding from 144-fiber to 288-fiber trunks or rerouting around new equipment. The yellow finish improves traceability in facilities using color-coded pathway systems (yellow for single-mode, aqua for OM3/OM4, orange for OM1/OM2, or custom schemes). In mixed-media environments, yellow can designate the fiber-only zone separate from copper Cat6A overhead ladder rack.

UL 2024A certification covers the entire assembled runway system — channels, fittings, and covers — confirming the product meets the safety standard for optical fiber cable runway assemblies. This listing is required for AHJ sign-off in many jurisdictions and for insurance underwriter approval in tenant improvement projects. Telcordia GR-63-CORE NEBS Level 3 compliance means the fitting survived the full seismic shake table protocol (Zone 4, 2.5g), temperature cycling (–40°C to +65°C), and fire/smoke tests that telecom carriers demand for central office and mobile switching center installations. The 9.8" overall length dimension represents the arc travel; when planning conduit-to-pathway transitions or calculating total route length for OTDR testing, add this elbow length to your straight-run segments.