Product Description
The Burndy KA31UM is a heavy-duty, high-capacity mechanical terminal lug specifically designed for global industrial applications requiring Metric Hardware compatibility. Engineered from high-strength 6061-T6 extruded aluminum alloy, this lug is built to terminate large-gauge feeders up to 350 kcmil. Its specialized design ensures a seamless fit in international panelboards, motor control centers, and machinery where metric studs and fasteners are the standard.
Every KA31UM is finished with a premium electro-tin plating to ensure exceptionally low contact resistance and maximum protection against oxidation. Fully dual-rated (AL9CU), this lug is certified for use with both copper and aluminum stranded conductors, offering the versatility needed for complex modern power distribution.
? Technical Specifications
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Manufacturer: Burndy (Hubbell)
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Part Number: KA31UM
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Conductor Range: 6 AWG (Stranded) up to 350 kcmil (MCM)
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Hardware Type: Metric Mounting Configuration
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Configuration: Single Barrel (1-Port) / One-Hole Mount
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Material: High-Strength 6061-T6 Extruded Aluminum Alloy
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Finish: Electro-Tin Plated
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Rating: Dual-Rated AL9CU (Al/Cu Rated)
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Voltage Rating: 600V - 2000V (Standard) / Up to 35kV (Uninsulated)
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Temperature Rating: 90°C (194°F)
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Screw Type: Rugged Hex Socket Set Screw
? Physical Dimensions & Design
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Body Style: Universal Straight Tongue
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Construction: Extruded body provides superior structural integrity compared to cast lugs, allowing it to withstand high-torque environments without cracking.
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Metric Advantage: Engineered for precision fitment with metric busbar studs, eliminating the need for over-sized standard holes and ensuring maximum surface area contact.
✅ Key Features & Benefits
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Global Compatibility: The "M" designation identifies this unit as Metric-ready, perfect for exported machinery or facilities using international electrical standards.
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Massive Conductor Range: Accommodates a wide variety of wire sizes from 6 AWG branch circuits up to 350 kcmil heavy feeders.
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Superior Corrosion Shield: Premium tin plating prevents galvanic corrosion between dissimilar metals, essential for longevity in industrial settings.
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High-Voltage Reliability: Rated for applications up to 35kV (when properly spaced and insulated), providing a professional-grade safety margin for medium-voltage projects.
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Mechanical Efficiency: Features a heavy-duty hex socket screw for high-pressure wire retention, ensuring a gas-tight electrical bond.
