THOMAS & BETTSOne-Hole Compression Lugs

THOMAS & BETTS Compression Lug: 5/16 in Stud Size, 4 AWG For Wire Sizes, Stranded Wire Type

The THOMAS & BETTS 54139 is a one-hole compression lug for 4 AWG stranded copper wire, with a 5/16 in stud size. This standard-type lug is designed for reliable electrical connections in industrial applications.

SKU 3G-OTH-622676

Brand

THOMAS & BETTS

Item

Compression Lug: 5/16 in Stud Size, 4 AWG For Wire Sizes, Stranded Wire Type

Technical Specifications

THOMAS & BETTS

Manufacturer Part Number

54139

Type

Stranded Wire Type, Std, Copper 

For Wire Sizes

4 AWG 

View Full Spec Sheet

Technical Documents

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THOMAS & BETTS Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the THOMAS & BETTS 54139 compression lug used for?

The THOMAS & BETTS 54139 one-hole compression lug is used to terminate 4 AWG stranded copper wire onto a 5/16 in stud. It creates a reliable, low-resistance electrical connection in industrial power distribution, control panels, and heavy equipment installations.

What are the specifications of the THOMAS & BETTS 54139 lug?

The THOMAS & BETTS 54139 is a standard-type, one-hole compression lug for 4 AWG stranded copper wire with a 5/16 in stud size. It is made of copper and is RoHS compliant. The manufacturer part number is 54139.

Where to buy THOMAS & BETTS 54139 compression lugs worldwide?

3G Electric supplies the THOMAS & BETTS 54139 compression lug to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this standard copper lug for 4 AWG wire.

How to install a THOMAS & BETTS 54139 compression lug?

Strip the 4 AWG stranded copper wire to the proper length, insert it fully into the lug barrel, and use a crimping tool matched to the lug and wire size. Apply the recommended crimp die and verify the connection is tight and corrosion-free for a reliable electrical joint.

Used in

Common applications for THOMAS & BETTS

Industrial control panel wiring organization — Thomas & Betts TYD series wiring ducts and snap-on covers for cable management.

Power distribution cable splicing — Thomas & Betts open barrel compression connectors for 350 kcmil copper conductors.

Hazardous location conduit systems — Thomas & Betts liquid-tight fittings for Class III environments in textile mills.

Motor control center connections — Thomas & Betts motor lead disconnects for 4/0 AWG wire in switchgear.

Conduit pull points and access — Thomas & Betts C-type and LR-type outlet bodies for RMC and IMC installations.

Panel building with flush covers — Thomas & Betts slotted wiring ducts with white covers for aesthetic and functional cable routing.

THOMAS & BETTS Products

3G Electric supplies THOMAS & BETTS one-hole compression lugs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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