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Ten copper compression lugs, orange colour code, one-hole design

3M

3M 31041 One-Hole Lug Compression Connector 3/0 AWG PK10

SKU CH-S4GP-0S40Z

Copper compression lug for 3/0 cable with 1/2 inch stud hole, tin-plated barrel, supplied in a pack of 10

  • Copper construction ensures high conductivity
  • Tin plating provides corrosion resistance
  • One-hole design simplifies installation
  • Standard tongue fits 1/2 in. studs
  • Pack of 10 connectors for multiple jobs

3/0 AWG Copper Lug Connector

The 3M 31041 is a one-hole compression lug designed for 3/0 AWG copper conductors. It features a straight barrel profile with a long barrel length and a tin-plated copper finish. A standard tongue style accepts a 1/2 inch stud for secure termination.

Replaces damaged or undersized lugs

Swap this connector in when existing lugs show corrosion, heat damage or an incorrect wire gauge fit. The orange colour code and die code 14, 101 ensure the correct crimp tool setting for a reliable joint. It is worth the change when a permanent, low-resistance connection is required for heavy-gauge cable.

Suits installers working with 3/0 cable

Electricians and maintenance teams terminating 3/0 AWG copper into busbars, lugs or equipment pads will find the 10-piece pack convenient. Buyers needing a two-hole mounting pattern, a different stud diameter or a connector rated for aluminium conductors should look at other configurations.

How it compares

Measured against everything we stock in Wire Connectors & Cable Ties, at today’s prices. Recalculated every night.

Price $159.99
Pricier than about 91% of the 1,040 comparable items (median $13.99).

Specifications

Product
Brand name3M

Questions about this item

What stud size does the 3/0 AWG lug accept for mounting?

The lug has a 1/2 in. stud size with a hole centre to end distance of .531 in. and a width of .91 in. for bolt clearance.

How is the connector installed and what step is often missed?

Strip the cable to the barrel length, insert into the straight barrel, then crimp with a die code 14 or 101 tool; skipping the correct die code creates a loose joint.

What maintenance or replacement will the tin-plated copper lug need later?

Inspect the tin plating for oxidation or cracking after thermal cycling; replace any lug showing discolouration or a loose crimp to maintain conductivity.

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