Product Description
The Square D DA-350 is a high-performance, single-barrel mechanical terminal lug engineered for seamless integration with Schneider Electric equipment. Specifically designed for PowerPacT M-Frame and L-Frame circuit breakers as well as low-voltage transformers, this lug is precision-machined from high-strength 6061-T6 extruded aluminum alloy. It provides a robust, code-compliant termination for conductors ranging from 6 AWG up to 350 kcmil (MCM).
Every DA-350 is finished with premium electro-tin plating to ensure exceptionally low contact resistance and to provide a permanent barrier against oxidation and galvanic corrosion. As a dual-rated (AL9CU) connector, it is certified for the safe termination of both copper and aluminum conductors in standard power distribution applications.
Technical Specifications
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Manufacturer: Square D (Schneider Electric)
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Part Number: DA-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: Internal Hex Socket
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Rating: Dual-Rated AL9CU (Compatible with Al/Cu)
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Mounting Configuration: Single Hole (Designed for 3/8" Stud)
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OEM Compatibility: PowerPacT M-Frame, PowerPacT L-Frame, and specific Square D Transformers
Physical Dimensions & Design
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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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OEM Reliability: Designed to the exact specifications of Square D equipment, ensuring a perfect fit and maintaining the UL listing of your breakers and transformers.
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Broad Range-Taking Ability: A single lug handles everything from 6 AWG branch circuits to 350 MCM main feeders, reducing the need for multiple lug sizes in your inventory.
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Bimetallic Safety: Specifically treated to prevent galvanic corrosion between dissimilar metals, ensuring long-term reliability for copper-to-aluminum transitions.
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Solderless Installation: Features a rugged mechanical set-screw that provides high-pressure termination without the need for expensive hydraulic crimping tools.
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Compact Footprint: Engineered to fit within the narrow terminal shields and lug pads of modern industrial circuit breakers.
