Panduit CCSSTR5057-X Trefoil Stainless Steel Cable Cleat
The Panduit CCSSTR5057-X delivers IEC 61914:2015-certified short-circuit protection for high-current three-phase cable runs in extreme environments. Engineered for trefoil-configured conductors 50-57mm in diameter, this cleat retains cables during fault events up to 172kA peak—the protection backbone for datacenter electrical rooms, industrial switchgear, and outdoor utility substations where single-point failures cascade into six-figure downtime. The 316L stainless steel construction resists chloride corrosion in coastal power distribution, chemical plant motor control centers, and rooftop solar combiner installations where galvanized or mild steel cleats pit and fail within 18 months. Ships in 10-packs with removable spacers; mounting hardware sold separately or field-supplied M8 bolts install directly to cable tray ladder rungs.
Key Features
- IEC 61914:2015 certified for 172kA peak short-circuit current—holds cables during fault events that vaporize inadequate clamps
- Type 316L stainless steel body and hardware—marine-grade corrosion resistance for outdoor switchgear, coastal substations, and chemical processing facilities
- Trefoil geometry for 50-57mm cable diameter—optimized spacing for three-phase conductor runs in conduit-free tray installations
- Removable spacer design—field-adjustable for mixed cable sizes within the 50-57mm range without stocking multiple SKU variants
- Dual mounting options—pairs with Panduit mounting brackets (sold separately) or direct M8 bolt attachment to cable tray rungs
- 10-pack carton quantity—economical coverage for standard 20-meter tray runs at 2-meter cleat spacing per IEC installation guidelines
Short-circuit-rated cable cleats prevent the electromagnetic repulsion forces during fault events from ejecting live conductors out of open cable trays—a Code requirement in IEC regions and an NFPA 70E arc-flash mitigation best practice in North America. The CCSSTR5057-X's trefoil configuration maintains the triangular three-phase geometry that balances magnetic fields during normal operation and contains cables during the violent mechanical shock of bolted faults. The 172kA peak rating covers utility service entrance feeders, generator paralleling switchgear, and medium-voltage distribution circuits where available fault current exceeds 100kA RMS; installations below 50kA can use lower-rated variants, but datacenter Tier III/IV designs and industrial plants fed from utility substations require this tier of protection to pass electrical inspection and maintain insurance coverage.
The Type 316L stainless steel alloy (2-3% molybdenum content vs. 304's zero) forms a passive chromium oxide layer that self-heals in salt spray and acidic condensation—critical for rooftop solar array DC combiner runs, wastewater treatment lift-station controls, and petrochemical analyzer shacks where 304 stainless or zinc-plated mild steel cleats develop crevice corrosion at the cable contact points within two annual inspection cycles. The removable spacer allows field adjustment across the 50-57mm range without returning to the truck; a single 10-pack SKU covers 12 AWG through 500 kcmil three-conductor assemblies in trefoil, reducing inventory complexity for electrical contractors who stock cleats for multiple project phases. The natural mill finish eliminates the paint adhesion failures common in powder-coated cleats exposed to thermal cycling and UV degradation in outdoor switchgear lineups.
Installation pairs the cleat with Panduit's Universal Cable Cleat Mounting Bracket system (search "CCTMB" series, sold separately) for unistrut/trapeze hanger attachment, or techs drill the cleat's integrated mounting holes for direct M8 bolt installation to the cable tray rung—common in retrofit projects where adding external hardware disrupts adjacent circuits. The IEC 61914:2015 third-party test certification provides the fault-current withstand documentation required by EU electrical inspectors, UK BS 7671 compliance audits, and North American projects following IEC adoption for mission-critical facilities; competitor cleats claiming "short-circuit rated" without IEC test reports fail permit review in jurisdictions enforcing the 2020 NEC Article 392 update referencing international cable support standards. Cross-references Thomas & Betts 9SS6-CCT series, Ellis Patents DSCS-A4955, and Panduit's own ER48-55 variants—all solve the same 50-57mm trefoil application, but only 316L stainless variants survive marine and chemical service without midlife replacement.
