Copper Compression Lug 3/0 AWG 5/16" Stud | Seamless Bare Copper 600V
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SKU: 6221-030-0516-NP
55 in stock
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The Conversions Tech Copper Compression Lug is a seamless tubular electrical connector engineered for 3/0 AWG copper conductors and 5/16" stud terminations. Manufactured from bare (non-tinned) copper, this lug provides low electrical resistance and high current-carrying capacity for controlled indoor power distribution applications. The seamless barrel construction ensures uniform crimp compression and gas-tight terminations when properly installed with hydraulic or dieless compression tools.
Specifications
- Wire Range: 3/0 AWG copper conductors only
- Stud Size: 5/16"
- Stud Hole (Nominal): 0.328"
- Material: Seamless Copper (Non-Tinned)
- Finish: Bare Copper
- Maximum Voltage: 600V AC/DC
- Construction Type: Seamless Tubular
- Overall Length (L): 2.170"
- Width (W): 0.950"
- Pad Thickness (T): 0.102"
- Tube Thickness (TT): 0.055"
- Barrel Length (BL): 0.780"
- Barrel Inside Diameter (ID): 0.500"
- Pad Length: 1.020"
- Strip Length: 0.780"
Cross-Reference
This seamless tubular copper compression lug is equivalent in form and function to standard industrial compression lugs from major manufacturers. Designed for 3/0 AWG copper conductors with 5/16" stud mounting, it provides comparable electrical and mechanical performance at competitive cost for high-current power distribution, battery systems, and grounding applications.
FAQ
What crimp tool should I use for this 3/0 AWG lug?
Use a hydraulic or dieless compression crimp tool rated specifically for 3/0 AWG copper lugs. Ensure the die set matches the seamless tubular barrel geometry for proper compression and gas-tight termination.
Can I use this lug outdoors or in wet locations?
This bare copper lug is intended for controlled indoor or protected environments where corrosion resistance is not required. For outdoor, wet, or corrosive environments, specify a tin-plated copper lug or seal the termination with adhesive-lined heat shrink tubing.
What is the correct strip length before crimping?
Strip conductor insulation to 0.780" before insertion into the barrel. This matches the barrel length and ensures full conductor engagement without exposed wire beyond the crimp zone.
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.
