Product Description
The ILSCO TA-350 is a heavy-duty, single-barrel mechanical terminal lug and a signature component of the ClearChoice series. Precision-machined from high-strength 6061-T6 extruded aluminum alloy, this lug is engineered for maximum reliability in high-amperage panelboards, switchgear, and industrial distribution equipment. It features a wide range-taking ability that safely supports wire sizes from 6 AWG up to 350 kcmil (MCM).
Every TA-350 is electro-tin plated to ensure exceptionally low contact resistance and to provide a permanent barrier against oxidation and galvanic corrosion. As a dual-rated (AL9CU) connector, it provides a safe, fire-rated bond for both copper and aluminum conductors in standard 2000V systems or high-capacity 35kV industrial applications.
Technical Specifications
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Manufacturer: ILSCO / Hubbell
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Series: ClearChoice
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Part Number: TA-350
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Conductor Range: 350 kcmil (MCM) down to 6 AWG
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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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Drive Type: 3/8-inch Internal Hex Socket
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Rating: Dual-Rated AL9CU (Al/Cu Compatible)
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Voltage Rating: 2000V (Standard) / Up to 35kV (High-Voltage)
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Temperature Rating: 90°C (194°F)
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Mounting Configuration: Single Hole (Fits 3/8-inch Stud)
Physical Dimensions
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Overall Length: ~2.25 inches
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Overall Width: ~1.125 inches
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Overall Height: ~1.25 inches
Key Features & Benefits
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Industrial Strength: Machined from solid extruded aluminum alloy to handle the high mechanical stress and thermal demands of 350 MCM power feeders.
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Precision Hex Drive: The 3/8-inch internal hex socket allows for high-pressure termination and prevents screw stripping, ensuring a gas-tight electrical connection.
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Bimetallic Safety: Specifically treated to prevent galvanic corrosion between dissimilar metals, ensuring a long-lasting connection for copper-to-aluminum transitions.
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High-Voltage Versatility: Listed for use in power systems up to 35kV when installed with proper high-voltage spacing and insulation per NEC guidelines.
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ClearChoice Reliability: Part of ILSCO’s premier mechanical line, ensuring UL 486A/B compliance and industry-leading quality control.
