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Compression Lug 4/0 AWG 5/16" Stud | Bare Copper 600V

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SKU: 6221-040-0516-NP

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The Conversions Tech Copper Compression Lug is a seamless tubular electrical connector engineered for 4/0 AWG copper conductors and 5/16" stud terminations. Manufactured from bare (non-tinned) copper, this lug provides maximum electrical conductivity for high-current power distribution in controlled indoor environments. The 5/16" stud size accommodates compact bolted connections on battery terminals, bus bars, grounding points, and distribution blocks where space constraints dictate a smaller hardware footprint.

Specifications

  • Wire Range: 4/0 AWG
  • Stud Size: 5/16"
  • Stud Hole (Nominal): 0.328"
  • Material: Seamless Copper (Non-Tinned)
  • Finish: Bare Copper
  • Maximum Voltage: 600V
  • Construction Type: Seamless Tubular
  • Application: Copper Cable Only
  • Overall Length (L): 2.360"
  • Width (W): 1.000"
  • Pad Thickness (T): 0.114"
  • Tube Thickness (TT): 0.059"
  • Barrel Length (BL): 0.840"
  • Barrel Inside Diameter (ID): 0.551"
  • Pad Length: 1.100"
  • Strip Length: 0.830"

Cross-Reference

This seamless tubular compression lug is equivalent in form and function to standard heavy-duty copper lugs from major manufacturers, providing comparable electrical and mechanical performance at lower cost.

FAQ

What wire size is this lug designed for?

It is designed specifically for 4/0 AWG copper conductors.

What stud size does this lug fit?

This lug fits a 5/16" stud with a nominal hole diameter of 0.328".

Is this lug tinned?

No. This version is non-tinned (bare copper). For corrosive or outdoor environments, use a tin-plated lug or seal with adhesive-lined heat shrink.

Why Pros Buy Direct from Conversions Tech

Engineered in the USA. Our U.S.-based engineering team designs and specifies our core product lines, and every product we carry — designed in-house or built to our exact specifications by certified partner factories — is quality-verified before it ships. UL/CSA listed where required, NEC compliant.

Cross-reference savings. Direct equivalents to Burndy, Hubbell, and other OEM part numbers at up to 30% less — same specs, same certifications, without the big-brand markup.

Real technical support. Need a torque spec, die reference, or an OEM quote? You’ll speak directly with the Conversions Tech engineering desk — not a script reader — for instant answers, custom kitting, and private-label options.

Fast US fulfillment. Orders in by 2PM ET ship same day from our US warehouse, nationwide ground and expedited.

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CONVERSIONS TECH

Professional-grade electrical components, networking cables, and solar hardware for contractors, distributors, and OEM partners. Same-day shipping from our U.S. distribution centers.

1 (307) 206-0534

CS@ConversionsTech.com

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© 2026 Conversions Tech Inc · Wyoming, United States
UL 486A/B CSA NEC 2023 ABYC E-11 IEEE 837
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