The Ilsco PB4-600 is a high-capacity mechanical terminal lug from the premium ClearChoice® series. Specifically engineered for space-constrained panelboards and switchgear, its innovative stacked 4-port design allows you to terminate up to four separate conductors vertically, saving critical horizontal busbar space.
Precision-machined from high-strength 6061-T6 aluminum alloy and finished with electro-tin plating, the PB4-600 provides maximum conductivity and superior resistance to oxidation. It is AL9CU dual-rated, making it the industry-standard choice for both copper and aluminum conductors in heavy-duty commercial and industrial power systems.
Manufacturer: Ilsco (nVent ILSCO)
Part Number: PB4-600 (Type PB)
Series: ClearChoice® Stack Lug
Conductor Range: 2 AWG to 600 kcmil (MCM)
Port Configuration: 4-Port (Vertical Stacked)
Material: High-Strength 6061-T6 Aluminum Alloy
Finish: Electro-Tin Plated
Rating: Dual-Rated AL9CU (CU9AL)
Voltage Rating: 600V to 35kV (with proper insulation)
Temperature Rating: 90°C (194°F)
Mounting Configuration: 2-Hole Pad
Mounting Bolt/Stud Size: 3/8-inch
Hole Spacing: 1-3/8 inch (1.375")
Overall Dimensions: 4.91" L x 2.47" W x 3.00" H
Drive Type: 1/2-inch Internal Hex
Certifications: UL 486A/B Listed, CSA Certified (C22.2 No. 65-03)
Compact Stacked Design: Terminate four 600 MCM conductors in a vertical arrangement, reducing the horizontal footprint on the busbar by up to 75% compared to standard lugs.
Chamfered Wire Entry: Each of the four ports features a smooth, chamfered edge to ensure fast, easy insertion of large conductors without fraying wire strands.
Universal AL9CU Compatibility: Certified for use with both copper and aluminum wire, providing maximum field flexibility and preventing galvanic corrosion.
Corrosion Resistance: Durable electro-tin plating ensures low contact resistance and protects the connection from oxidation in industrial environments.
Professional Grade: Manufactured to the highest industrial standards by nVent ILSCO, ensuring a gas-tight, high-torque mechanical connection for mission-critical power systems.
Wire Binding Torque: For 600 MCM conductors, set screws must be torqued to 500 in-lbs. A calibrated 1/2-inch hex drive torque wrench is required.
Wire Preparation: For aluminum conductors, it is highly recommended to apply a quality oxide inhibitor (such as Ilsco De-Ox) to the stripped wire prior to insertion.
Mounting: Designed for 2-hole 3/8" stud mounting. Ensure the mounting surface is clean and free of paint for optimal electrical contact.
Fast Dispatch: Ships within 1 business day.
Local Pickup: Available – Contact seller for details.
Peace of Mind: Returns Accepted – 30-day return policy