Conversions Tech Tinned Copper Compression Lug – 2 AWG, 3/8″ Stud
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SKU: 6221-02-038-TP
79 in stock
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Conversions Tech Tinned Copper Compression Lug – 2 AWG, 3/8″ Stud
The Conversions Tech Tinned Copper Compression Lug is a seamless tubular, heavy-duty electrical connector engineered for 2 AWG copper conductors and a 3/8″ stud interface. Manufactured from high-purity copper and fully tin plated, this lug delivers excellent electrical conductivity, corrosion resistance, and long-term mechanical stability in medium-to-high current power distribution applications.
The seamless barrel construction promotes uniform compression during crimping, helping reduce electrical resistance while improving pull-out strength and vibration resistance. The 3/8″ stud ring is ideal for bus bars, battery terminals, grounding points, and industrial distribution blocks where larger hardware and stronger mechanical retention are required.
Key Features
- Seamless tubular copper barrel for consistent compression and low joint resistance
- Tin-plated finish for corrosion resistance and stable long-term contact
- Designed for 2 AWG copper conductors
- 3/8″ stud hole for secure bolted terminations
- Rated up to 600V for power distribution and DC applications
- High mechanical strength for vibration and thermal cycling environments
Technical Specifications
| Wire Range | 2 AWG |
| Stud Size | 3/8″ |
| Stud Hole (Nominal) | 0.390″ |
| Material | Seamless Copper |
| Finish | Tin Plated |
| Maximum Voltage | 600V |
| Construction Type | Seamless Tubular |
| Application | Copper Cable Only |
Dimensions
All dimensions shown in inches. For this 2 AWG seamless tubular series, lug body and barrel geometry remain consistent across stud sizes, with the stud hole changing to 0.390″ for the 3/8″ stud version.
| Overall Length (L) | 1.900″ |
| Width (W) | 0.720″ |
| Pad Thickness (T) | 0.088″ |
| Tube Thickness (TT) | 0.045″ |
| Barrel Length (BL) | 0.720″ |
| Barrel Inside Diameter (ID) | 0.365″ |
| Pad Length | 0.820″ |
| Strip Length | 0.710″ |
| Stud Hole (Nominal) | 0.390″ |
Typical Applications
- Battery cable terminations (industrial, marine, RV)
- Power distribution and bus bars
- Renewable energy systems (inverters, battery banks)
- Industrial equipment wiring and grounding
- Backup power and telecom DC infrastructure
Installation Notes
- Use a hydraulic or dieless compression crimp tool rated for 2 AWG copper lugs
- Strip conductor insulation to the specified strip length before crimping
- Do not use with aluminum conductors
- Seal with adhesive-lined heat shrink for outdoor or corrosive environments
Frequently Asked Questions (FAQs)
What wire size is this compression lug designed for?
This lug is designed specifically for 2 AWG copper conductors.
What stud size does this lug fit?
It is designed for a 3/8″ stud and uses a nominal 0.390″ stud hole.
Is this lug seamless or welded?
This is a seamless tubular compression lug, designed for uniform crimping and strong mechanical performance.
Why is this lug tin plated?
Tin plating improves corrosion resistance, reduces oxidation, and helps maintain stable electrical contact over time.
What voltage rating does this lug support?
This lug is rated for applications up to 600V.
What crimping tool should be used?
Use a hydraulic or dieless compression crimp tool rated for 2 AWG copper lugs and follow the tool manufacturer’s die/index guidance.
What is the recommended strip length?
The recommended strip length is 0.710″ to ensure full conductor insertion and proper compression.
Can this lug be used outdoors?
Yes. For best results in wet or corrosive environments, seal the termination with adhesive-lined heat shrink.
Is this lug suitable for aluminum wire?
No. This lug is designed for copper conductors only. Use an AL/CU-rated connector for aluminum conductors.
Do dimensions change between 1/4″, 5/16″, and 3/8″ stud versions?
In this seamless tubular 2 AWG series, the primary change is the stud hole size. Always verify tongue clearance requirements (washer OD, bus bar spacing, and hardware stack-up) for your specific installation.
4 Reasons Pros Buy Direct from Conversions Tech
, we design, test, and ship every product from inside the United States— “” quality without the big-box markup.
Our , mold, and QA station behind our weatherproof boxes, conduit bodies, and power inverters. , UL-listed safety, and up to 30 % lower cost than .
Need a torque spec or an OEM quote at dawn? You’ll speak directly with the Conversions Tech engineering desk—not a script reader—for instant answers, custom kitting, and private-label options.
Bottom line: For rugged, code-compliant electrical solutions shipped fast from a trusted U.S. source, choose Conversions Tech and build it right the first time.
