55826-1 is a pre-insulated sealed butt splice connector designed for joining wires in the 12-10 AWG (2.62-6.64 mm²) range with CMA ratings of 5,180-13,100. It features a copper body with tin plating and polyolefin heat-shrinkable insulation that provides an environmentally sealed connection to prevent corrosion from fluids and vapors. The splice has a maximum length of 1.796 inches (45.62 mm) and accommodates wire insulation up to 0.240 inches (6.10 mm). UL 486 C recognized, this butt splice is ideal for automotive, marine, and industrial applications where moisture protection and reliable electrical connections are critical.