Product Description
The ILSCO D831 is an industrial-grade, single-barrel mechanical terminal lug engineered for high-integrity electrical power connections. Precision-machined from high-strength 6061-T6 extruded aluminum alloy, this lug is designed to terminate conductors ranging from 6 AWG up to 250 kcmil (MCM). It is a trusted standard for terminating main feeders and branch circuits in panelboards, motor control centers, and industrial switchgear.
Every D831 is electro-tin plated to ensure exceptionally low contact resistance and provide a permanent barrier against atmospheric and galvanic corrosion. As a dual-rated (AL9CU) connector, it is certified for the safe termination of both copper and aluminum conductors at operating temperatures up to 90°C.
Technical Specifications
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Manufacturer: ILSCO
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Part Number: D831
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Conductor Range: 6 AWG up to 250 kcmil (MCM)
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Material: 6061-T6 High-Strength Aluminum Alloy
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Finish: Electro-Tin Plated (Corrosion Resistant)
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Rating: Dual-Rated AL9CU (Aluminum and Copper compatible)
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Temperature Rating: 90°C (194°F)
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Voltage Rating: 600V (Standard) / Up to 35kV (Uninsulated/High Voltage)
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Mounting Hole: Single Hole (5/16" / 0.328" Stud Size)
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Configuration: 1 Port / Solderless Mechanical Connection
Key Features & Benefits
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Range-Taking Flexibility: A single lug handles a wide range of wire sizes (6 AWG to 250 MCM), reducing inventory needs for large-scale industrial projects.
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High-Voltage Certified: Rated for use in power systems up to 35kV when installed with proper high-voltage spacing and insulation per NEC guidelines.
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Mechanical Simplicity: Features a rugged internal hex set-screw that provides high-clamping force without the need for specialized hydraulic crimping tools.
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Bimetallic Compatibility: Specifically engineered to prevent galvanic corrosion between dissimilar metals, making it safe for copper-to-aluminum transitions.
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Reusable Terminal: Designed for longevity and reusability, making it ideal for maintenance upgrades or temporary power configurations.
