Panduit PWBPF4X8BL Formed Wire Basket Tee Fitting
Ninety-degree intersections in wire basket cable tray systems create three problems: exposed cable bundles at the turn radius, sharp steel edges where sidewalls meet, and NEC grounding continuity questions when sections join. The Panduit PWBPF4X8BL formed tee fitting solves all three in a single UL-classified assembly. Designed for 4" wide basket with 8" sidewall height, this powder-coated steel tee arrives complete with base liner, two side liners, and two mounting brackets—everything needed to route low-voltage, fiber, and power cables through perpendicular junctions without exposure or abrasion risk. Two threaded rod mounting holes support overhead installation in seismic zones and plenum spaces where basket trays carry maximum cable load.
Key Features
- Complete 90-degree turn solution with integrated cable protection at intersection points
- Includes base liner, two side liners, and two mounting brackets for full edge coverage
- Powder-coated steel construction resists corrosion in datacenter, telecom, and industrial environments
- Two threaded rod mounting points for secure overhead suspension and seismic compliance
- UL Classified as Equipment Grounding Conductor per NEC 392.3(C) and 392.7(B)
- Sized for 4" basket width with 8" sidewall height—matches Panduit standard basket tray profiles
- Black finish integrates with overhead infrastructure in equipment rooms and above drop ceilings
The liner system is the differentiator in high-density cable environments. Panduit ships this tee with a base liner that covers the bottom junction where three basket sections meet, plus two side liners that wrap the vertical edges where the perpendicular sidewalls intersect. This matters when you're routing 50+ Cat6A cables or fiber trunk bundles through a turn—any sharp edge becomes a jacket abrasion point under tension, and a single nicked cable during a pull costs more in troubleshooting labor than the fitting itself. The powder-coat finish adds corrosion resistance in mixed environments where HVAC condensation, concrete dust, or salt air exposure is a factor. Steel construction maintains structural integrity under load—critical when the tray is supporting 40 lb/ft of copper and fiber across a 10-foot span, and the tee is the lateral support point for two perpendicular runs.
Typical deployments include datacenter hot/cold aisle overhead runs where basket tray drops from the structural deck to distribution racks, surveillance headend equipment rooms where camera home-runs converge from multiple building wings, and access control riser pathways where card-reader circuits branch to individual floors. The two threaded rod mounting holes let you suspend the tee independently from the basket sections it joins—important in seismic zones where AHJs require separate support within 12" of direction changes, and in plenum spaces where basket tray is the only support for cables and you need to maintain clearance from sprinkler heads and ductwork. Installers use 3/8" all-thread rod with beam clamps or concrete inserts, torquing the assembly to prevent sway under cable weight. The formed construction means no field fabrication—critical when you're working from a scissor lift 18 feet up and can't measure, cut, and deburr flat tee components at height.
UL classification as an Equipment Grounding Conductor per NEC 392.3(C) and 392.7(B) means this fitting isn't just a passive cable support—it's part of your electrical safety system. The National Electrical Code allows metal cable tray to serve as the grounding path for circuits it supports, but only if every tray section and fitting in the run meets UL's bonding and conductivity requirements. Inspectors check for this classification during rough-in, and non-compliant fittings trigger a rejection and rework. Panduit's UL listing covers bonding jumper requirements and ensures grounding continuity across the tee junction when you torque the mounting hardware per installation instructions. This tee cross-references to competitor part WBT-R90-4X8BL, but Panduit's inclusion of base and side liners in the base SKU eliminates the need to source edge protection separately—a real advantage when you're ordering for a 50,000 sq ft build and need to keep the BOM consolidated.
