Panduit CCALTR3741-X Aluminum Trefoil Cable Cleat

The Panduit CCALTR3741-X aluminum cable cleat is engineered for intermediate-to-large fault current installations requiring IEC 61914:2015 compliant short-circuit protection in trefoil cable configurations. Rated for peak fault currents up to 114kA, this cleat retains cables during fault events, preventing cable movement and the cascading damage that follows. Designed for trefoil cable diameters from 37mm to 41mm, the CCALTR3741-X mounts directly to standard cable tray rungs using a user-supplied M8 bolt and accommodates the three-cable triangular arrangement common in three-phase power distribution. Aluminum construction provides adequate mechanical strength in indoor or less corrosive outdoor environments, while the natural finish maintains compatibility with galvanized tray systems when paired with appropriate insulating washers and spacers sold separately.

Key Features

• IEC 61914:2015 certified for short-circuit cable retention in trefoil configurations
• Rated for peak fault current up to 114kA for medium and large fault scenarios
• Fits trefoil cable bundle diameters from 37mm to 41mm
• Aluminum construction for less corrosive environments, balancing strength and weight
• Direct mounting to cable tray rung via single M8 bolt (user-supplied)
• 4.99" overall height accommodates standard tray rung profiles
• Natural aluminum finish for visual compatibility with existing infrastructure
• Sold in packages of 10 cleats for efficient project procurement
• Cross-compatible with multiple manufacturer part numbers for retrofit and standardization projects

The CCALTR3741-X addresses the specific mechanical demands of trefoil cable routing, where three single-core cables are arranged in a triangular configuration to balance electromagnetic forces and minimize inductance in high-current AC distribution systems. During short-circuit fault conditions, electromagnetic forces between conductors can reach destructive levels—cables can jump, twist, or collide with adjacent metalwork, leading to insulation damage, arcing, and secondary faults. This cleat's 114kA peak fault current rating means it can withstand the mechanical forces generated during faults in systems with available fault currents up to that threshold, a range that covers many utility substation, industrial plant, and large commercial building distribution scenarios. The aluminum body provides the necessary rigidity to resist deformation under fault forces while keeping weight manageable for installations on ladder tray or perforated tray systems. The single-point M8 mounting hole allows secure attachment directly through the tray rung, eliminating the need for auxiliary brackets or complex hardware assemblies. Installers should note that insulating washers and spacers are sold separately and are required when the cleat is installed on galvanized or dissimilar-metal tray systems to prevent galvanic corrosion between the aluminum cleat and the steel tray.

This cleat is typically deployed in utility substations, industrial power distribution systems, data center utility entrances, and renewable energy installations where trefoil cable routing is specified for three-phase circuits above 1000V or high-current low-voltage feeders. IEC 61914:2015 certification is often mandated by project specifications, utility standards, or local electrical codes for installations where fault current levels exceed lower-rated domestic standards. The 37-41mm cable diameter range corresponds to common medium-voltage single-core cables in the 150mm² to 300mm² cross-sectional area range, as well as large low-voltage conductors used in 1000A to 2000A three-phase feeders. Installation on cable tray allows for efficient routing of long horizontal runs while maintaining code-required support intervals; the cleat spacing is determined by fault current magnitude, cable size, and tray span per IEC 61914 Annex B tables or project-specific short-circuit analysis. The natural aluminum finish integrates visually with aluminum tray systems and does not require additional surface treatment in indoor or sheltered outdoor environments; for harsher conditions or coastal/chemical exposure, stainless steel cleats should be considered instead.

Each package contains 10 cleats, which simplifies procurement for projects requiring multiple support points along a cable run—typical installations may require cleats every 1 to 3 meters depending on fault level and cable configuration. The extensive cross-reference list (including parts from Ellis, Daring, and other global manufacturers) makes the CCALTR3741-X a drop-in replacement for existing installations undergoing expansion or standardization. When planning installations, confirm that your cable tray rung thickness and profile accommodate the M8 bolt and that you have sourced the appropriate insulating washers and spacers for your specific tray material. The cleat does not include the mounting bolt, allowing installers to select bolt length and grade based on tray thickness and local fastener standards.