3M 30019 One-Hole Lug Compression Connector 4 AWG PK50

30019 One-Hole Lug Compression Connector

The 3M 30019 is a straight-barrel compression lug for 4 AWG copper cable, supplied in a pack of 50. It suits electricians and panel builders terminating power conductors in control cabinets, motor leads or heavy-duty appliance wiring. The tin-plated copper barrel accepts a standard die code 8 or 95 crimp for a reliable mechanical and electrical joint. The single 1/4 inch stud hole centres the lug on common terminal blocks and bus bars.

Tin-plated copper barrel and gray colour code

Tin plating protects the copper from oxidation in humid or industrial atmospheres, extending service life without extra coating steps. The gray colour code matches standard crimp-chart identification so the correct die is selected at a glance, reducing rework on site. A short barrel length keeps the overall lug compact at 1.94 inches while still providing full crimp engagement. No peep hole is present, so visual wire-insertion checks rely on the installer’s technique.

0.49 inch width and 0.375 inch hole centre-to-end

The 0.49 inch tongue width fits standard 1/4 inch stud terminals without overhang, keeping adjacent connections clear in dense terminal strips. A 0.375 inch hole centre-to-end distance positions the conductor close to the mounting surface, minimising bending radius stress on the cable. Copper construction ensures low contact resistance and high ampacity for continuous-duty circuits. The pack quantity of 50 supports volume panel builds and maintenance stock.