Product Description
The CMC LA-330 is a high-performance, single-barrel mechanical terminal lug manufactured by Connector Mfg. Co. (a Hubbell Power Systems brand). While nearly identical in form factor to the popular LA-300, the LA-330 is specifically engineered for a precise conductor range, accommodating wire sizes from 4 AWG up to 300 kcmil (MCM). It is the industrial standard for secure, high-current terminations in panelboards, switchgear, and motor control centers.
Precision-machined from high-strength 6061-T6 extruded aluminum alloy, the LA-330 offers superior structural integrity compared to cast alternatives. The entire body is electro-tin plated to ensure exceptionally low contact resistance and provide a durable barrier against atmospheric and galvanic corrosion.
? Technical Specifications
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Manufacturer: CMC (Connector Mfg. Co. / Hubbell)
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Part Number: LA-330
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Conductor Range: 4 AWG (Stranded) up to 300 kcmil (MCM)
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Material: 6061-T6 High-Strength Aluminum Alloy
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Plating: Electro-Tin Plated (Low Resistance)
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Rating: Dual-Rated CU9AL (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)
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Mounting Hole: Single Hole (Fits 5/16" Stud)
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Certifications: UL Listed and CSA Certified
? Physical Dimensions & Design
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Length: 2.00 inches
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Width: 1.00 inch
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Height: 1.13 inches
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Design: Streamlined L-shape with a heavy-wall barrel for high-torque mechanical pressure.
✅ Key Features & Benefits
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Optimized Conductor Range: Provides a more focused range (4 AWG to 300 MCM) than some universal lugs, ensuring a tighter mechanical fit for mid-to-large-sized feeders.
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CU9AL Dual-Metal Rated: Fully certified for use with both copper (Cu) and aluminum (Al) conductors, making it a "go-to" lug for mixed-metal power distribution.
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No Specialized Tooling: The robust mechanical set-screw allows for high-pressure termination using only a standard hex or Allen wrench—no hydraulic crimpers required.
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Corrosion Shield: Premium tin plating prevents oxidation, ensuring a long-lasting, gas-tight electrical bond even in damp industrial settings.
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Hubbell/CMC Reliability: Backed by industry-leading quality control, these lugs are designed to be reusable for maintenance or system upgrades.
