Product Description
The Blackburn ADR25 is a high-performance, single-barrel mechanical terminal lug engineered for reliable power distribution and grounding. Part of the industry-leading Blackburn line by ABB, this lug is precision-machined from high-strength aluminum alloy to ensure long-term mechanical stability. It is the preferred choice for terminating main or branch circuit conductors in industrial control panels, switchgear, and electrical enclosures.
Featuring a premium electro-tin-plated finish, the ADR25 provides a low-resistance electrical connection while effectively inhibiting oxidation and corrosion. Its AL9CU dual-rating makes it fully compatible with both aluminum and copper conductors, providing the versatility required for modern service entrance and distribution equipment.
Technical Specifications
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Manufacturer: Blackburn (ABB)
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Part Number: ADR25
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Conductor Range: 6 AWG (Stranded) to 250 kcmil (MCM)
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Conductor Type: Aluminum (Al) or Copper (Cu)
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Configuration: Single Port (1-Barrel) / One-Hole Mount
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Material: High-Strength 6061-T6 Aluminum Alloy
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Finish: Electro-Tin Plated
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Rating: Dual-Rated AL9CU (CU9AL)
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Voltage Rating: 600V (Standard) / Up to 1000V in specific applications
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Temperature Rating: 90°C (194°F)
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Mounting Hole Size: 5/16-inch Stud
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Pressure Screw: 5/16-inch Internal Hex (Socket)
Physical Dimensions
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Overall Length: 2.0 inches
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Width: 1.0 inch
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Height: 1.125 inches (1-1/8")
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Tongue Dimensions: 1.0" L x 1.0" W x 0.25" Thick
Key Features & Benefits
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Compact Footprint: The 2-inch overall length makes it ideal for tight wiring gutters and compact panelboard applications where space is limited.
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Universal AL9CU Compatibility: Certified for use with both copper and aluminum stranded wires, simplifying job-site inventory and preventing galvanic corrosion.
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Corrosion Protection: Durable electro-tin plating provides a protective barrier against atmospheric oxidation, essential for outdoor or industrial environments.
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High-Torque Performance: The 5/16" internal hex pressure screw allows for high clamping force to maintain a permanent, gas-tight electrical bond.
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Slotted Mounting Tongue: Designed for easy alignment and secure installation onto busbars or equipment pads using standard 5/16" hardware.
