Product Description
The Ilsco PB4-600-2N is a heavy-duty, space-saving mechanical terminal designed for high-density power distribution. Featuring a specialized stacked 4-port design, this lug allows you to terminate four large-gauge conductors in a fraction of the horizontal busbar space required by traditional side-by-side lugs.
Precision-machined from high-strength 6061-T6 aluminum alloy and electro-tin plated, the PB4-600-2N is AL9CU dual-rated for both copper and aluminum conductors. Its 2-hole NEMA mounting configuration ensures maximum surface contact and superior anti-rotation stability for mission-critical industrial applications.
Technical Specifications
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Manufacturer: Ilsco
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Part Number: PB4-600-2N
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Configuration: 4-Port / 4-Conductor (Stacked)
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Conductor Range: 600 kcmil (MCM) down to 2 AWG (Copper or Aluminum)
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Mounting Pad: 2-Hole NEMA Standard
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Stud/Bolt Size: 1/2"
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Hole Spacing: 1-3/4" Center-to-Center
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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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Voltage Rating: 600V (Up to 35kV with proper insulation)
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Temperature Rating: 90°C
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Drive Size: 1/2" Hex Drive
Key Features & Benefits
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Space-Efficient Stacked Design: Provides four termination ports in a vertical stack, significantly reducing the footprint required on switchgear busbars and transformer pads.
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Universal AL9CU Rating: Fully certified for use with both Copper (Cu) and Aluminum (Al) conductors, providing ultimate flexibility for any installation site.
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Easy Wire Insertion: Features a chamfered wire entry at each port, preventing strand "hang-up" and making the installation of heavy 600 MCM cable smooth and fast.
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Maximum Conductivity: The electro-tin plating ensures a low-resistance electrical path and protects against galvanic corrosion in harsh environments.
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NEMA Standard Mounting: The 1-3/4" hole spacing is the industry standard for industrial-grade power distribution equipment, ensuring a perfect fit for existing bus systems.
⚙️ Typical Applications
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Industrial Panelboards: Consolidating multiple feeder lines into a single main connection point.
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Transformer Secondary Taps: Terminating large-gauge cables in outdoor utility or indoor facility transformers.
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Motor Control Centers (MCC): Providing high-amperage power feeds to large industrial machinery.
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Switchgear Overhauls: Upgrading existing systems to handle higher conductor counts without replacing the entire busbar.
Technical Installation Notes
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Hex Size: A 1/2" hex (Allen) wrench is required for the mechanical set screws.
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Torque Requirement: For 600 MCM conductors, recommended torque is typically 375–500 in-lbs. Always verify the torque value printed on the lug body for safety.
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Oxide Inhibitor: As with all aluminum terminations, the use of a quality joint compound (like Penetrox) is highly recommended to ensure a gas-tight, long-term connection.
