Product Description
The CMC LI-50S (Hubbell) is a high-performance mechanical lay-in grounding lug designed for fast and efficient electrical terminations. Its unique open-faced design allows installers to "lay-in" a continuous grounding conductor as a jumper across multiple conduits or connection points without having to break or cut the wire.
Manufactured from high-strength 6061-T6 aluminum alloy and finished with electro-tin plating, the LI-50S provides superior conductivity and protection against oxidation. Its dual-rating (AL9CU) makes it fully compatible with both copper and aluminum conductors.
Technical Specifications
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Manufacturer: CMC (Connector Manufacturing Co.)
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Part Number: LI-50S
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Type: Lay-In Mechanical Grounding Lug
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Conductor Range: 4 AWG to 14 AWG (Copper or Aluminum)
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Stud Size: 0.22" (Standard #10 or 3/16" bolt)
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Material: 6061-T6 Aluminum Alloy
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Plating: Electro-Tin Plated
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Connection Type: Slot-head set screw
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Dimensions: 1.07" L x 0.38" W x 0.78" H
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Rating: AL9CU Dual Rated (90°C Rated)
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Certifications: UL Listed, CSA Certified
Key Features & Benefits
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Open-Face Lay-In Design: Drastically reduces installation time by allowing the wire to be dropped in from the side, eliminating the need to thread long runs of wire through a closed port.
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Continuous Conductor Support: Ideal for grounding bushings and solar rail grounding where one continuous wire acts as a jumper for multiple locations.
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Superior Strength & Conductivity: Made from 6061-T6 aluminum to prevent stripping and ensure a gas-tight mechanical bond even under thermal expansion.
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Corrosion Protected: Tin plating ensures a low-resistance connection and prevents galvanic corrosion when used with copper wiring.
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Compact Footprint: Small enough for tight spaces in junction boxes, conduit bushings, and solar racking systems.
Typical Applications
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Conduit Grounding: Specifically designed for use on conduit grounding bushings to maintain a continuous ground path.
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Solar Rail Grounding: Perfect for bonding solar panels and racking systems together without cutting the ground wire.
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Pool & Spa Bonding: Used in grounding and bonding applications where a continuous copper loop is required.
