Panduit FRTSC4LYL FiberRunner 4x4 Horizontal Tee Split Cover

Overview

The Panduit FRTSC4LYL is the two-section split cover for the FiberRunner 4x4 horizontal tee fitting — a purpose-built accessory that completes the Panduit FiberRunner raceway system at every tee junction. If you've ever needed to pull a cable through an already-populated horizontal tee without disturbing the entire run, the tool-free clip design is the spec that matters most here. The cover snaps on and off without any tools, and the two-section construction creates a rounded 19 mm access opening so you can add or remove fibers mid-run without forcing cables through a blind channel. At 12.95 in wide and 2.15 in tall, it fits precisely over the fiber cable management FRT4X4LYL horizontal tee fitting — those are the only two parts this cover is designed for, so verify your tee fitting matches before ordering.

Key Features

• Tool-Free Two-Section Clip Design: The split construction snaps directly onto the FRT4X4LYL horizontal tee — no screwdrivers, no hardware. In a dense data center where you're pulling new strands through live trays weekly, the ability to pop the cover off and back on in seconds is the difference between a 30-second task and a 10-minute one.
• 19 mm Rounded Access Opening: The two sections meet to form a smooth, rounded 19 mm aperture at the tee junction. That geometry matters for fiber: sharp edges at tee transitions are one of the leading causes of bend-radius violations and microbend attenuation. The rounded opening keeps bend radius in spec even when cables are routed under load.
• Polycarbonate/ABS Construction: The blend gives you the impact resistance of ABS with the dimensional stability of polycarbonate — relevant in a telecommunications room where ambient temperature swings and physical contact from cable pulls are routine. This isn't a decorative cover; it's structural protection for the tee junction.
• Yellow Color for System Identification: Yellow is the fiber optic cable management industry convention for single-mode fiber pathways. If your facility uses color-coded raceway to distinguish fiber types or network segments, the FRTSC4LYL keeps that scheme intact through every horizontal tee in the run.
• RoHS Compliant: Restricts hazardous materials in the polycarbonate/ABS mix — required for data center deployments subject to EU RoHS directives and increasingly referenced in domestic enterprise procurement specs. No special disposal handling required.
• UL-Listed Optical Fiber Cable Guidance Assemblies (up to 2024A): UL listing to 2024A confirms the cover assembly meets the construction and performance criteria for optical fiber cable guidance — relevant for compliance sign-off in jurisdictions that require listed raceways.
• Telcordia GR-63-CORE and NEBS Level 3 Compliant: These are the telecom carrier-grade environmental standards — seismic zone 4 vibration, thermal cycling, and airflow requirements. If you're deploying in a carrier central office or any facility that mandates NEBS, this cover carries the same compliance as the underlying FiberRunner system.
• Sold as Single Unit (Carton Qty 5): Package quantity is 1, so you can order exactly the number of tee covers your layout requires. Carton quantity is 5 if you're stocking spares or covering a large installation in one order.

Integration and Compatibility

The FRTSC4LYL is designed exclusively for the FiberRunner 4x4 horizontal tee fitting (FRT4X4LYL). It is not interchangeable with 2x4, 6x4, or other FiberRunner channel sizes — the clip geometry and overall dimensions (12.95 in W × 9.15 in L × 2.15 in H) are specific to the 4x4 form factor. Before purchasing, confirm your horizontal tee fitting is the FRT4X4LYL; covers for other channel sizes use different part numbers. This cover is intended for data center and central telecommunications office deployments where the full FiberRunner system is in use. It does not function as a standalone raceway — it is a cover accessory only.

What's in the Box

• 1x Panduit FRTSC4LYL FiberRunner 4x4 Horizontal Tee Split Cover (Yellow)

Frequently Asked Questions

Q: Which tee fitting does the FRTSC4LYL cover fit?

A: The FRTSC4LYL is designed specifically for the Panduit FiberRunner 4x4 horizontal tee fitting, model FRT4X4LYL. It is not compatible with other FiberRunner channel sizes or tee fittings from other product lines.

Q: Does the FRTSC4LYL require tools to install or remove?

A: No. The two-section split cover uses a clip mechanism that snaps on and off without any tools, allowing installers to open and close the tee cover for cable adds or changes without disturbing adjacent sections of the run.

Q: What is the access opening size created by the two-section design?

A: When installed, the two sections form a rounded 19 mm opening at the tee junction, providing a smooth-edged access point for routing or adding fiber cables while maintaining bend radius compliance.

Q: Is the FRTSC4LYL RoHS compliant?

A: Yes. The FRTSC4LYL is RoHS compliant, restricting hazardous substances in its polycarbonate/ABS construction — suitable for deployments subject to EU RoHS directives or enterprise procurement requirements referencing RoHS compliance.

Q: Does the FRTSC4LYL meet NEBS Level 3 requirements?

A: Yes. The cover is compliant with Telcordia GR-63-CORE and Network Equipment Building Systems (NEBS) Level 3 standards, making it appropriate for carrier central office and other telecom environments where NEBS compliance is mandated.

Q: What quantity is included per order, and what is the carton quantity?

A: Each order ships as 1 cover (package quantity: 1). The standard carton quantity is 5 units, which is useful for stocking spares or completing a larger installation in a single order.

James Everett

The FRTSC4LYL is one of those parts that looks minor on a BOM but causes real frustration when you skip it. I've seen FiberRunner 4x4 tee junctions left uncovered in finished data centers because the project manager assumed covers were optional — and then watched technicians fight with unsupported fiber loops at every tee during subsequent MACs. The clip-on, tool-free design specifically matters at tee points because those are your highest-activity cable management locations; a cover you need a screwdriver to remove gets left off permanently after the second service call.

Technical Highlights:

• 19 mm Rounded Access Opening: At a horizontal tee, fiber is changing direction in two axes simultaneously — this is exactly where bend radius violations accumulate. The 19 mm rounded geometry keeps the transition smooth at the point of highest stress on the cable bundle.
• NEBS Level 3 / Telcordia GR-63-CORE: Most enterprise data centers don't mandate NEBS, but carrier central offices and colocation providers with telecom tenants often do. Specifying a NEBS-compliant cover on a NEBS-compliant tee fitting keeps the entire assembly in compliance — mixing in a non-rated cover can void the assembly listing.
• Polycarbonate/ABS at 12.95 in × 9.15 in × 2.15 in: The cover dimensions are fixed to the 4x4 channel geometry — this is not adjustable. Confirm your tee fitting dimensions match before procurement; a 2x4 or 6x4 FiberRunner installation requires a different cover SKU.

Deployment Considerations:

• This cover is an accessory for the FRT4X4LYL horizontal tee fitting only. It does not fit vertical tees, reducers, or cross fittings in the FiberRunner line — each junction type in a complete raceway installation requires its own corresponding cover part number.
• Package quantity is 1, but if you're covering a structured cabling installation with multiple horizontal tees, the carton quantity of 5 makes for a cleaner procurement order — and you'll want at least one spare on-site for post-commissioning cable adds.

The FRTSC4LYL is the right specification call for any carrier central office or NEBS-compliant colocation build using FiberRunner 4x4 — particularly in high-MAC-rate environments where technicians will be opening and closing tee covers regularly throughout the facility's operational life.