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Tweco 1-MPC WeldSkill Female Cable Connector (#4-#1)

$26.93/EA $39.08/pack of 2 only $19.54/EASave 27%

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OVERVIEW

Reliable Connections for the Professional Welder

Every welder knows that a bad ground or a loose lead can ruin a perfect bead. The Tweco WeldSkill 1-MPC Female Connector (Part #9425-1127) is built to solve those problems, giving you a solid, reliable connection every time you strike an arc. Whether you are building custom extension leads to reach across the shop or repairing a damaged cable that’s seen better days, this connector is the industry standard for a reason. Designed to fit cable sizes from #4 to #1, it covers the most common lead sizes used in light to medium-duty fabrication, maintenance, and repair work.

Built for the Shop Environment
Shop floors are tough on equipment. Cables get dragged over concrete, stepped on, and exposed to sparks and oil. The Tweco 1-MPC features a rugged rubber cover that stands up to this abuse, protecting the brass connection inside from shorting out against your worktable. The brass body itself is heavy-duty, ensuring that the current flows smoothly to your torch or stinger without overheating the connection. A cool-running connector means less resistance and better performance at the arc.

Quick and Easy Installation
One of the best features of the WeldSkill series is the ease of installation. You don't need a soldering iron or specialized crimping tools to attach this connector. It uses a simple but effective ball-point screw system. Just strip your cable, insert it into the brass body, and tighten the screw with an Allen wrench. The ball-point drives down into the copper strands, locking them in place for a connection that won't pull out. Once installed, the quick-connect cam-lock allows you to add or remove cable lengths in seconds—twist to lock, twist to unlock. It’s that simple.

Safety and Compatibility
Safety is paramount, and the positive locking action of the Tweco MPC series ensures your cables stay connected until you decide to disconnect them. No more popping loose in the middle of a critical weld. This female connector mates perfectly with any standard 1-MPC male plug, allowing you to mix and match with existing leads you might already have. Upgrade your setup with Tweco WeldSkill and stop worrying about your connections.

Additional Information
Brand:Tweco
Product Type:Cable Connector
Connector Type:Female
Cable Capacity:#4 AWG, #2 AWG, #1 AWG
Series:WeldSkill, 1-MPC
Connection Style:Single Ball-Point Screw
Material:Brass, Rubber
Amperage Rating:250A
Packaging Description:1 per each

INCLUDED

  • 1 x Tweco 1-MPC Female Connector Body (Brass)
  • 1 x Ball-Point Cable Screw
  • 1 x Insulating Rubber Cover
  • 1 x Copper Shim (if applicable for smaller wire)

APPLICATIONS

  • Extension of welding leads for MIG, TIG, and Stick welding
  • Repair of damaged cable ends in maintenance shops
  • Quick-disconnect setups for mobile welding rigs
  • Connection of ground clamps and electrode holders to power sources
  • General fabrication and light industrial manufacturing

FAQ

This connector is designed to fit welding cables ranging from #4 AWG to #1 AWG.

No, the 9425-1127 is the Female connector half only. You will need the corresponding Male half (typically part of the 1-MPC set) to make a connection.

It uses a mechanical connection with a single ball-point screw that compresses the cable strands against the brass body.

No, soldering is not required due to the efficient mechanical screw design, although you can solder it if you prefer a permanent bond.

Yes, the connector comes complete with the heat and oil resistant rubber cover.

It is generally rated for approximately 250 amps, though the actual capacity depends on the size of the cable used.

It is compatible with other industry-standard MPC (Mechanical Power Connection) style connectors of the same size class (No. 1).

You typically only need a cable stripper (or knife) to expose the copper strands and a hex key (Allen wrench) to tighten the set screw.