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96101103 - Tweco S-40 Mechanical Cable Splicer for 3/0-4/0 Wire

Packaging: pack of 5
$17.91/EA $64.95/pack of 5 only $12.99/EASave 27%

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OVERVIEW

Heavy-Duty Connection for 3/0 and 4/0 Cables

Maximize the versatility of your welding setup with the Tweco 9610-1103 (Model S-40) Lug-Set Cable Splicer. This high-performance connector is the industry standard for joining large-gauge welding cables, specifically accommodating 3/0 and 4/0 AWG sizes. In the demanding world of industrial welding, maintaining the integrity of your power leads is critical for arc stability and weld quality. The S-40 splicer ensures that extending your cables doesn't compromise performance, offering a low-resistance link that handles high amperage with ease.

The genius of the Lug-Set system lies in its simplicity and strength. Unlike crimp connectors that require heavy hydraulic presses, or solder joints that are time-consuming and brittle, the S-40 uses a mechanical screw-down mechanism. Large ball-point screws compress the cable strands against the solid copper alloy body, ensuring maximum surface area contact. This design not only provides exceptional electrical conductivity but also offers high mechanical strength to resist the tugging and pulling common in shop environments. The copper alloy body is resistant to corrosion and thermal deformation, ensuring a long service life.

Ideal for repairing damaged cables or creating custom-length leads, the Tweco S-40 is a reusable solution that belongs in every welder's toolbox. If a cable needs to be shortened or re-routed, the screws can simply be loosened and the splicer removed. Please note that while the metal splicer block provides the electrical connection, appropriate insulation—such as a cable cover or electrical tape—must be applied over the splice to prevent accidental arcing and ensure operator safety. Choose Tweco for reliable, professional-grade cable connections.

Additional Information
Cable Size:3/0 to 4/0 AWG
Packaging Description:1 per each
Model:S-40
Connection Type:Mechanical Lug-Set (Double Screw)
Material:Copper Alloy
Amperage Capacity:Up to 500A

INCLUDED

  • 1 x Tweco S-40 Lug-Set Cable Splicer Block
  • 2 x Ball-Point Set Screws

APPLICATIONS

  • Extending welding power leads for greater reach
  • Repairing cut or damaged 3/0 and 4/0 welding cables
  • Joining cable sections in field maintenance operations
  • Creating custom-length cable assemblies for heavy industrial equipment
  • Temporary or permanent cable splicing in shipyards and fabrication shops

FAQ

The Tweco S-40 (9610-1103) is designed to fit welding cables sized 3/0 AWG and 4/0 AWG.

No, this part number (9610-1103) typically refers to the metal splicer block and screws only. A protective cover or heat shrink must be purchased separately or applied by the user.

Strip the insulation from the ends of both cables, insert the bare copper into the splicer block, and tighten the ball-point set screws firmly using a hex wrench (Allen key) until the cable is secure.

Yes, the mechanical screw design allows you to loosen the screws and remove the cables, making the splicer block reusable for future connections.

The body is constructed from a high-conductivity copper alloy to ensure efficient current transfer and minimize heat build-up.

While it physically fits, mechanical lug splicers are generally optimized for copper cable. Aluminum cable often requires compression (crimping) with an oxide inhibitor to prevent loosening due to thermal expansion/contraction, though mechanical lugs can be used if rated for dual use.

Lug-Set splicers can be installed in the field with just a wrench, whereas crimping requires a heavy-duty crimping tool or hammer lug, making the Lug-Set easier for quick repairs.