Copper Long Barrel Two Hole Compression Lugs 4/0 AWG 1/2-inch Bolt Size
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SKU: 210-98102
198 in stock
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Conversions Tech 4/0 AWG Copper Compression Lug – Dual Hole, 1/2" Stud, Long Barrel (Purple Color Code)
The Conversions Tech Durable Copper Compression Lug is engineered for secure, low-resistance connections with 4/0 AWG conductors. Featuring a dual-hole configuration, 1/2-inch bolt size, and a long-barrel construction, this lug delivers superior electrical performance and mechanical strength in high-amperage applications.
Manufactured from electro-tin-plated seamless copper, it provides outstanding conductivity and corrosion resistance, even in outdoor or industrial environments. The purple color code allows fast wire-size identification for streamlined installations.
Rated for 35 kV and continuous operation up to 90 °C, this compression lug is the professional’s choice for demanding electrical, renewable-energy, and heavy-equipment systems.
Key Features
- 4/0 AWG Conductor Size: Precision-machined to fit 4/0 AWG cables for strong, efficient terminations.
- Long-Barrel Design: Provides enhanced contact area, reducing resistance and improving current flow.
- Dual-Hole Configuration: Offers mechanical stability and flexibility for dual-terminal or bus-bar mounting.
- 1/2-Inch Bolt Size: Fits standard ½-inch studs for secure mechanical fastening.
- Tin-Plated Finish: Protects against corrosion and oxidation, extending service life in harsh conditions.
- Purple Color Code: Identifies 4/0 AWG conductor size quickly per industry standards.
- High-Voltage Capacity: Rated for systems up to 35 kV and 230 A maximum current.
- Temperature Rating: Performs safely in environments up to 90 °C (194 °F).
- Chamfered Barrel Entry: Simplifies conductor insertion and ensures clean, consistent crimps.
- Compliance: Meets UL 486A/B and NEC electrical-connection requirements.
Technical Specifications
| Material | Electro-Tin-Plated Seamless Copper |
| Color Code | Purple |
| Overall Length | 4.991 in (126.8 mm) |
| Barrel Length | 1.5 in (38.1 mm) |
| Conductor Size | 4/0 AWG |
| Stud Size | ½ in |
| Voltage Rating | 35 kV |
| Maximum Current | ≈ 230 A |
| Die Index | I-54 |
| Pad Size (L × W × T) | 3 in × 0.999 in × 0.141 in |
| Pad Holes | 2 (dual-hole design) |
| Hole Spacing | 1-3/4 in (44.5 mm) |
| Inner / Outer Diameter | 0.546 in ID × 0.687 in OD |
| Barrel Type | Long, Chamfered Entry |
| Temperature Rating | 90 °C (194 °F) |
| Certifications | UL Recognized • CE Certified • RoHS Compliant |
Applications
- High-current switchgear and distribution panels
- Battery banks and renewable-energy systems
- Grounding and bonding installations
- Marine and heavy-equipment electrical systems
- Industrial automation and control panels
FAQs (Click to Expand)
1. What wire size fits this lug?
This model is designed for 4/0 AWG copper conductors, ensuring a tight mechanical and electrical fit.
2. Why use a dual-hole lug?
Dual holes provide extra mechanical stability and prevent rotation when tightened, improving vibration resistance and reliability.
3. What does the purple color indicate?
Purple is the industry color code for 4/0 AWG wire size, simplifying quick identification during installation.
4. Can this lug be used outdoors?
Yes. The electro-tin-plated finish provides long-term corrosion protection, ideal for outdoor, marine, or industrial use.
5. Which crimping die should I use?
Use an I-54 die index with a compatible compression tool to ensure a UL-compliant, gas-tight crimp.
6. What is the rated voltage and current?
The lug is rated up to 35 kV and approximately 230 A, depending on conductor and installation conditions.
7. What is the operating temperature limit?
It performs continuously at up to 90 °C (194 °F) without degradation of conductivity or mechanical strength.
8. Is this product UL listed?
Yes. It is UL Recognized, CE Certified, and RoHS Compliant, meeting all major safety standards.
9. How should I prepare the conductor before crimping?
Strip the insulation, clean the copper strands, insert fully into the chamfered barrel, and crimp using the specified die pressure.
10. Can it be used for both AC and DC circuits?
Yes. This 4/0 AWG lug supports both AC and DC applications up to 35 kV, including solar and battery systems.
Why Choose Conversions Tech
Conversions Tech manufactures precision copper compression lugs engineered for superior performance and reliability. Every connector undergoes UL-verified testing for conductivity, tensile strength, and corrosion resistance to meet the highest industry standards. Explore our complete line of compression lugs and grounding products .
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.
