Allen-Bradley 51140-306-08F Lug Terminal Block

Description:

The 51140-306-08F Lug is used in electrical power distribution systems to provide a secure termination point for copper (CU) and aluminum (AL) conductors. Commonly installed in switchboards, panelboards, motor control centers, and industrial electrical equipment requiring dual-rated conductor terminations. Electricians, maintenance teams, and system integrators use this lug for electrical repairs, panel upgrades, and replacement of worn or damaged conductor terminations.

Applications:

The 51140-306-08F is a mechanical lug designed for terminating copper and aluminum conductors in industrial and commercial electrical systems. It is commonly used in power distribution panels, switchgear, motor control centers, and grounding systems where secure, low-resistance electrical connections are required. Dual-rated AL/CU lugs are widely used to simplify installations involving either conductor type while maintaining code-compliant connections.

Technical Specifications:

• Manufacturer Part Number (MPN): 51140-306-08F
• Product Type: Mechanical Lug / Conductor Terminal Lug
• Conductor Compatibility: Copper (CU) and Aluminum (AL)
• Conductor Rating: Dual Rated (AL/CU)
• Application: Power Distribution and Electrical Termination
• Mounting Type: Mechanical Fastening
• Connection Type: Set Screw Terminal
• Voltage Rating: Typically up to 600 V for building wire applications
• Construction Material: Tin-Plated Aluminum Alloy
• Corrosion Resistance: Electro-Tin Plated Surface
• Installation: Requires Specified Torque per Manufacturer Instructions
• Typical Uses: Panelboards, Switchgear, MCCs, Distribution Equipment
• Standards: UL Listed Mechanical Connector Requirements for AL/CU Conductors

Common Replacements:

• Burndy AL/CU Mechanical Lug
• ILSCO Dual-Rated Mechanical Lug
• Penn-Union AL/CU Mechanical Lug