Product Description
The CF A-500 is a heavy-duty, high-capacity mechanical terminal designed for the secure termination of large-gauge power feeders. Precision-machined from high-strength 6061-T6 extruded aluminum alloy, this lug is engineered to handle massive electrical loads in panelboards, switchgear, and transformer secondary connections. Its single-hole mounting design and robust set-screw mechanism provide a permanent, high-integrity electrical bond for critical infrastructure.
Every CF A-500 lug is electro-tin plated to inhibit oxidation and maintain exceptionally low contact resistance over the life of the installation. As a dual-rated (AL9CU) connector, it offers the ultimate flexibility, allowing for safe termination of both copper and aluminum conductors in systems ranging from standard 600V commercial power to 35kV high-voltage industrial applications.
Technical Specifications
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Part Number: CF A-500
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Conductor Range: 4 AWG up to 500 kcmil (MCM)
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Material: 6061-T6 High-Strength Aluminum Alloy
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Plating: Electro-Tin Plated (Corrosion Resistant)
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Rating: Dual-Rated AL9CU (Aluminum and Copper compatible)
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Voltage Rating: 600V (Standard) / Up to 35kV (Uninsulated)
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Temperature Rating: 90°C (194°F)
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Mounting Hole: 3/8-inch Stud (Bolt Size)
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Screw Type: Heavy-Duty Hex Socket Set Screw
Physical Dimensions & Design
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Compact Power: Designed to provide maximum current-carrying capacity in a space-saving footprint.
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Structural Integrity: The extruded aluminum body is significantly more durable than cast alternatives, allowing for the high torque required to secure 500 MCM cables without the risk of the lug body cracking.
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Large Entry Port: Features a wide-profile wire entry to accommodate high-strand flexible conductors or standard rigid feeders.
Key Features & Benefits
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Massive Versatility: One lug handles everything from 4 AWG branch circuits to 500 MCM main feeders, reducing inventory needs for large projects.
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Bimetallic Compatibility: Specifically treated to prevent galvanic corrosion between dissimilar metals, making it safe for copper-to-aluminum transitions.
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Enhanced Conductivity: The heavy tin plating ensures a gas-tight connection and prevents the formation of resistive aluminum oxides.
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High-Voltage Ready: Certified for high-voltage environments up to 35kV when installed with proper spacing and insulation per NEC guidelines.
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Hex Screw Termination: Provides superior clamping force compared to slotted screws, ensuring the conductor stays secure under thermal cycling.
