Long Barrel Compression Lug 3/0 AWG 1/2" Stud | 90°C 310A Tin-Plated Copper
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SKU: 210-98072C
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3/0 AWG Copper Compression Lug – 1-Hole, 1/2" Stud, Long Barrel | Conversions Tech
The Conversions Tech 3/0 AWG Copper Compression Lug is a robust, high-performance connector engineered for secure, low-resistance electrical terminations. Designed for 3/0 AWG copper conductors, this lug features a single 1/2-inch stud hole and a long barrel construction that enhances mechanical strength and electrical stability in demanding applications.
Manufactured from seamless electro-tin plated copper, this tinned copper compression lug offers excellent corrosion resistance and long service life. The distinctive orange color code enables quick visual identification, helping installers work faster and reduce errors. While this model does not include a sight window, its precision design ensures consistent, reliable performance across industrial and commercial installations.
Key Features
- Seamless Electro-Tin Plated Copper: Delivers excellent conductivity with superior corrosion resistance.
- 3/0 AWG Conductor Size: Designed for reliable termination of 3/0 AWG copper cables.
- 1-Hole Pad with 1/2" Stud: Provides a secure, stable connection to standard electrical equipment.
- Long Barrel Design: Allows for multiple crimps, improving pull-out strength and electrical contact.
- Chamfered Barrel Entry: Guides stranded conductors smoothly into the barrel for easier installation.
- Tin-Plated Finish: Protects against oxidation and corrosion in harsh environments.
- Orange Color Code: Enables fast identification and alignment with industry color-coding practices.
- High Voltage Capability: Rated up to 35 kV for a wide range of power applications.
Common Applications
- Power distribution panels and switchgear
- Industrial electrical equipment and control panels
- Commercial electrical installations
- Renewable energy systems and battery storage
- Grounding and bonding with large copper conductors
Technical Specifications
| Material | Seamless Electro-Tin Plated Copper |
| Conductor Material | Copper |
| Conductor Size | 3/0 AWG |
| Stud Size | 1/2 Inch |
| Pad Holes | 1 |
| Barrel Type | Long Barrel |
| Barrel Entry | Chamfered |
| Color Code | Orange |
| Overall Length | 3.189 Inch |
| Barrel Length | 1.5 Inch |
| Insulation Size (ID × OD) | 0.484 Inch × 0.609 Inch |
| Die Index | I-50 |
| Pad Size | 1.25" L × 0.885" W × 0.125" Thick |
| Voltage Rating | 35 kV |
| Temperature Rating | 90°C |
Frequently Asked Questions (FAQs)
What wire type is this compression lug designed for?
This lug is designed specifically for 3/0 AWG copper conductors. It is not intended for aluminum wire.
What is the advantage of a long barrel compression lug?
A long barrel supports multiple crimps, increasing mechanical strength, reducing resistance, and improving long-term reliability.
What stud size does this lug fit?
This lug fits a standard 1/2-inch stud or bolt.
Why is the lug tin plated?
Tin plating protects the copper from corrosion and oxidation while preserving excellent electrical conductivity.
What does the orange color code indicate?
The orange color code corresponds to 3/0 AWG conductor size, allowing quick visual identification.
What crimping tool should be used?
Use a crimp tool rated for 3/0 AWG copper lugs and follow the recommended die selection, including Die Index I-50.
Does this lug include a sight window?
No, this model does not include a sight window, but it still provides reliable and consistent electrical performance.
Is this lug suitable for outdoor use?
Yes. The tin-plated copper finish provides corrosion resistance suitable for indoor and outdoor environments.
What is the voltage rating?
This compression lug is rated up to 35 kV when installed correctly.
What is the maximum operating temperature?
This lug is rated for continuous operation up to 90°C.
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.
