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THOMAS & BETTS Compression Lugs: 5/16 in Stud Size, 300 kcmil For Wire Sizes, Stranded Wire Type - One-Hole Compression Lugs
THOMAS & BETTSOne-Hole Compression Lugs

THOMAS & BETTS Compression Lugs: 5/16 in Stud Size, 300 kcmil For Wire Sizes, Stranded Wire Type

The THOMAS & BETTS 54178 is a one-hole compression lug for 300 kcmil stranded copper wire with a 5/16 in stud size. This standard copper lug is designed for reliable electrical connections.

SKU 3G-OTH-622705

Brand
THOMAS & BETTS
Item
Compression Lugs: 5/16 in Stud Size, 300 kcmil For Wire Sizes, Stranded Wire Type
Category
One-Hole Compression Lugs
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Technical Specifications

THOMAS & BETTS
Manufacturer Part Number
54178
Type
300 kcmil For Wire Sizes, Stranded Wire Type, Std, Copper
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THOMAS & BETTS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The THOMAS & BETTS 54178 is a one-hole compression lug for 300 kcmil stranded copper wire with a 5/16 in stud size. This standard copper lug is designed for reliable electrical connections.

Frequently Asked Questions

What is the THOMAS & BETTS 54178 compression lug used for?

The THOMAS & BETTS 54178 is a one-hole compression lug used to terminate 300 kcmil stranded copper wire onto a 5/16 in stud. It creates a reliable, low-resistance electrical connection in industrial power distribution, switchgear, and motor control applications.

What are the specifications of the THOMAS & BETTS 54178?

The THOMAS & BETTS 54178 is a standard copper one-hole compression lug. It accepts 300 kcmil stranded copper wire and fits a 5/16 in stud size. The manufacturer part number is 54178, and it is designed for secure, long-lasting terminations.

Where to buy the THOMAS & BETTS 54178 worldwide?

3G Electric supplies the THOMAS & BETTS 54178 compression lug to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this standard copper lug for 300 kcmil wire.

How to install the THOMAS & BETTS 54178 compression lug?

Strip the 300 kcmil stranded copper wire to the recommended length, insert it fully into the lug barrel, and use the correct crimping die per THOMAS & BETTS tooling instructions. Apply the proper number of crimps to ensure a UL-rated connection. Always follow manufacturer guidelines.

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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Compression Lug: 1/4 in Stud Size, 8 AWG / 8 AWG For Wire Sizes, Solid/Stranded Wire Type, Long (MPN 60102). Key specifications — attr1307400: THOMAS & BETTS; attr1307350: No; attr1307368: Aluminum; attr1307374: 60102.
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Compression Lug: 1/2 in Stud Size, 2/0 AWG For Wire Sizes, Stranded Wire Type, Std, Copper (MPN 54160). Key specifications — attr1307400: THOMAS & BETTS; attr1307350: Yes; attr1307368: Copper; attr1307374: 54160.
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Compression Lug: 1/2 in Stud Size, 2/0 AWG For Wire Sizes, Stranded Wire Type, Std, Copper (MPN 54160). Key specifications — attr1307400: THOMAS & BETTS; attr1307350: Yes; attr1307368: Copper; attr1307374: 54160.
Compression Lugs: 5/8 in Stud Size, 400 kcmil For Wire Sizes, Stranded Wire Type, Std, Copper (MPN 54185). Key specifications — attr1307400: THOMAS & BETTS; attr1307350: Yes; attr1307368: Copper; attr1307374: 54185.
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Compression Lugs: 5/8 in Stud Size, 400 kcmil For Wire Sizes, Stranded Wire Type, Std, Copper (MPN 54185). Key specifications — attr1307400: THOMAS & BETTS; attr1307350: Yes; attr1307368: Copper; attr1307374: 54185.
Compression Lug: 3/8 in Stud Size, 250 kcmil For Wire Sizes, Stranded Wire Type, Std, Copper (MPN 54174UB). Key specifications — attr1307400: THOMAS & BETTS; attr1307350: Yes; attr1307368: Copper; attr1307374: 54174UB.
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Compression Lug: 3/8 in Stud Size, 6 AWG / 6 AWG For Wire Sizes, Solid/Stranded Wire Type, Long (MPN 60109). Key specifications — attr1307400: THOMAS & BETTS; attr1307350: No; attr1307368: Aluminum; attr1307374: 60109.
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Compression Lug: 1/2 in Stud Size, 4/0 AWG For Wire Sizes, Stranded Wire Type, Std, Copper (MPN 54170). Key specifications — attr1307400: THOMAS & BETTS; attr1307350: Yes; attr1307368: Copper; attr1307374: 54170.
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