Copper Long Barrel One Hole Compression Lug 4 AWG 1/2-inch Bolt Size
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SKU: 210-09855
1000 in stock
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4 AWG Copper Compression Lug | Long Barrel | 1-Hole | 1/2" Stud | Gray | Conversions Tech
The Conversions Tech 4 AWG Copper Compression Lug is a durable, high-performance electrical connector designed for reliability and long-term service life. Crafted from seamless electro-tin plated copper, this lug ensures superior conductivity and corrosion resistance, making it ideal for industrial, commercial, and power distribution applications. Its long barrel construction and chamfered entry design simplify installation while ensuring strong, stable crimps that deliver low-resistance connections. The gray color code provides quick identification for wire gauge accuracy during setup.
Rated for 35 kV and 90°C, this lug complies with UL, CE, and RoHS standards, guaranteeing quality and safety in demanding environments.
Key Features
- Seamless Electro-Tin Plated Copper: Provides maximum conductivity and corrosion resistance for extended service life.
- Long Barrel Design: Ensures enhanced mechanical strength and electrical stability through multiple crimps.
- 1/2-Inch Stud Compatibility: Standardized size fits common terminal studs for quick, secure installation.
- Gray Color Code: Allows fast wire gauge identification and streamlined field work.
- Chamfered Barrel Entry: Smoothly guides conductors for accurate insertion and consistent terminations.
- High Voltage Rating: Rated up to 35 kV with 90°C temperature performance for industrial-grade reliability.
- UL, CE, and RoHS Certified: Meets international electrical safety and performance requirements.
Technical Specifications
| Wire Size | 4 AWG |
| Stud Size | 1/2" Stud |
| Color | Gray |
| Overall Length (L) | 55.3 mm (2.18") |
| Neck Length (L1) | 28.7 mm (1.13") |
| Outer Diameter (D) | 17.7 mm (0.70") |
| Inner Diameter (D1) | 9.1 mm (0.36") |
| Hole Diameter (D2) | 7.1 mm (0.28") |
| Width (B) | 22.8 mm (0.90") |
| Hole Spacing (E) | 13.1 mm (0.51") |
| Thickness (F) | 1.4 mm (0.05") |
| Terminal Material | Tin-Plated Copper |
| Voltage Rating | 35 kV |
| Temperature Rating | 90°C |
| Max Amp Rating | 85 A |
| UL Recognized | Yes |
| CE Certified | Yes |
| RoHS Compliant | Yes |
Frequently Asked Questions (FAQs)
1. What conductor size is this lug compatible with?
This lug is designed for 4 AWG copper conductors, providing secure and efficient electrical terminations.
2. What is the voltage and temperature rating?
It is rated up to 35 kV and 90°C, offering consistent performance for various electrical applications.
3. Is this lug corrosion-resistant?
Yes, the tin-plated copper construction ensures excellent corrosion resistance, ideal for both indoor and outdoor use.
4. What die index should be used for crimping?
Use die index I-29 for accurate and consistent compression results with standard crimping tools.
5. What applications is this lug best suited for?
It is ideal for use in industrial panels, power distribution systems, HVAC setups, renewable energy installations, and general electrical wiring.
4 Reasons Pros Buy Direct from Conversions Tech
Headquartered in business-friendly Wyoming, we design, test, and ship every product from inside the United States—delivering genuine “Made-for-America” quality without the big-box markup.
Our in-house team owns every CAD file, mold, and QA station behind our weatherproof boxes, conduit bodies, and power inverters. Vertical control means tighter tolerances, UL-listed safety, and up to 30 % lower cost than private-label imports.
Thousands of SKUs sit ready to go. Orders placed by 2 p.m. ship the same day, keeping contractors, OEMs, and distributors on schedule.
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.
