Burndy K3A31U2N Mechanical Terminal Lug Tin Plated

Burndy K3A31U2N is an aluminum universal terminal lug designed for three-conductor, mechanical bolted terminations. It accepts conductors from #6 AWG stranded up to 350 kcmil and uses a 1/2" stud for mounting, with 1.75" stud-hole spacing to align with standard bus-bar layouts. The lug features two holes and three screws, enabling secure termination of up to three conductors in a single connection. Constructed from high-strength aluminum alloy and electro-tin plated, it offers corrosion resistance and low contact resistance, while being dual-rated for aluminum and copper conductors (Al/Cu). This configuration supports compact, multi-conductor terminations in electrical distribution applications where a single lug must serve multiple lines. The K3A31U2N is a compact, versatile solution for scenarios requiring multiple conductors to converge on a single bolted lug, combining robust mechanical integrity with compatible materials for mixed-metal installations. With electro-tin plating on an aluminum alloy body, it resists oxidation at the contact surfaces, helping maintain reliable conductivity over time.