Cable Lug Selection Guide by Cable Size

Match the conductor first

A cable lug must match the conductor material, construction and nominal cross-sectional area. A lug that is too large may not compress correctly; one that is too small can damage strands or prevent full insertion. Check whether the conductor is copper or aluminium and use a compatible lug.

Check palm and stud dimensions

The palm must fit the terminal surface and the hole must match the stud without excessive clearance. Verify that the palm can sit flat and that adjacent lugs, covers and barriers still have enough space.

Use the specified crimping system

Select the die profile and size recommended for the lug. Mixing an unverified die and lug can produce a joint that looks acceptable but has high resistance or poor pull-out strength. Keep tools calibrated, place the crimp in the specified position and complete the required number of compressions.

Prepare and inspect the joint

Strip only the required insulation length without cutting conductor strands. Insert the conductor fully, crimp, and inspect the finished joint for cracks, flash, incomplete compression and exposed strands. Apply suitable heat-shrink or insulation where needed, while keeping the contact surface clean.

Ordering checklist

• Conductor material and cross-section in mm²
• Solid, stranded or flexible conductor class
• Stud or bolt diameter
• Operating current and temperature
• Indoor, outdoor or corrosive environment
• Compatible tool and die reference

Correctly matched lugs and tooling reduce heat, voltage drop and maintenance risk in power connections.