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95201128 - Tweco L-3040 Copper Hammer Lug for 3/0-4/0 Cable

Packaging: pack of 5
$20.38/EA $70.05/pack of 5 only $14.01/EASave 31%

Usually ships within 3-5 business days

OVERVIEW

High-Conductivity Copper Termination for Heavy-Duty Cables

The Tweco WeldSkill Hammer Lug (Part Number 9520-1128, Model L-3040) is a premium cable termination solution designed for industrial welding environments. Engineered to accommodate 3/0 and 4/0 AWG welding cables, this lug provides a secure and electrically efficient connection point for power sources, wire feeders, and grounding clamps. Manufactured from high-grade copper tubing, the lug ensures minimal electrical resistance, reducing heat buildup at the connection point and maximizing current transfer efficiency during high-amperage operations.

The design features a flared barrel entry, which significantly simplifies the insertion of stranded welding cable, preventing strand splaying and ensuring a full-contact fit. The 17/32-inch stud hole is precision-sized to fit standard 1/2-inch studs commonly found on welding power supplies and grounding terminals. A top-facing opening on the barrel serves a dual purpose: it allows for the introduction of solder for those preferring a soldered connection, and it provides a visual inspection window to verify full cable insertion depth before crimping or hammering.

Installation is versatile and field-ready. While compatible with standard crimping tools, the "Hammer Lug" design allows for secure installation using a simple hammer strike or a lug punch, making it an essential component for field repairs where specialized hydraulic tools may not be available. The flat contact surface is machined to ensure flush mounting against bus bars or machine terminals, further enhancing conductivity and mechanical stability.

Additional Information
Product Type:Hammer Lug
Material:Copper
Connection Type:Hammer-On, Solder
----- new values below ----
Cable Capacity:3/0 AWG, 4/0 AWG
Stud Hole Size:17/32" (13.5mm)
Material:Copper
Connection Type:Hammer-On, Solder
Model Number:L-3040
Brand:Tweco
Product Type:Hammer Lug

INCLUDED

  • 1 x Tweco WeldSkill Hammer Lug (L-3040)

APPLICATIONS

  • Terminating 3/0 and 4/0 welding cables
  • Connecting cables to welding machine output studs
  • Attaching cables to ground clamps
  • Repairing damaged cable ends in the field
  • Custom welding lead fabrication

FAQ

This Tweco L-3040 lug is designed to fit 3/0 AWG and 4/0 AWG welding cables.

The stud hole diameter is 17/32 inches, making it suitable for standard 1/2-inch studs.

No, while you can use a crimper, these 'Hammer Lugs' are designed to be installed by striking them with a hammer to compress the copper barrel onto the cable.

Yes, the lug features a top opening that allows for solder to be fed in for a soldered connection if preferred.

It is made from high-conductivity copper tubing for maximum electrical efficiency.

This product listing is typically for a single lug, but please check the specific quantity selector or packaging description.

These are copper lugs designed primarily for copper welding cable. Using them on aluminum cable may result in galvanic corrosion unless specific inhibitors and procedures are used.

Strip the insulation off the end of the cable to a length that matches the barrel of the lug, insert the bare copper strands fully, and then crimp or hammer.