350 MCM Copper Compression Lug – 1-Hole, 1/2" Stud, Long Barrel | Conversions Tech
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SKU: 210-98076A
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350 MCM Copper Compression Lug – 1-Hole, 1/2" Stud, Long Barrel | Conversions Tech
The Conversions Tech 350 MCM Copper Compression Lug is engineered for high-performance electrical systems requiring dependable conductivity and long-term durability. Designed specifically for 350 MCM copper conductors, this lug features a single 1/2-inch bolt hole and a long barrel design that delivers excellent mechanical strength and low-resistance electrical performance.
Constructed from seamless electro-tin plated copper, this tinned copper compression lug provides superior corrosion resistance for use in both indoor and outdoor environments. The red color code allows for fast visual identification and compatibility with industry-standard color-coding systems, reducing installation time and minimizing errors.
Key Features
- High-Quality Copper Construction: Delivers excellent electrical conductivity and long service life.
- 350 MCM Conductor Size: Precision engineered for 350 MCM copper wire in medium to heavy-duty power systems.
- 1-Hole Pad with 1/2" Stud: Ensures a secure and stable attachment to bus bars, lugs, and electrical equipment.
- Long Barrel Design: Supports multiple crimps for enhanced pull-out strength and consistent electrical contact.
- Tin-Plated Finish: Provides corrosion and oxidation resistance while maintaining low electrical resistance.
- Red Color Code: Enables quick identification and alignment with standard electrical color codes.
- High-Performance Durability: Built to withstand demanding industrial, commercial, and utility applications.
Common Applications
- Power distribution panels and switchgear
- Industrial electrical equipment and control panels
- Utility and infrastructure installations
- Renewable energy systems and battery storage
- Grounding and bonding systems using large copper conductors
Technical Specifications
| Material | Seamless Electro-Tin Plated Copper |
| Conductor Material | Copper |
| Conductor Size | 350 MCM |
| Stud Size | 1/2 Inch |
| Pad Holes | 1 |
| Barrel Type | Long Barrel |
| Barrel Entry | Chamfered |
| Color Code | Red |
| Overall Length | 3.873 Inch |
| Barrel Length | 2.0 Inch |
| Barrel Size (ID × OD) | 0.703 Inch × 0.89 Inch |
| Die Index | I-71 |
| Pad Size | 1.25" L × 1.291" W × 0.187" Thick |
| Voltage Rating | 35 kV |
| Temperature Rating | 90°C |
Frequently Asked Questions (FAQs)
What conductor type is this lug designed for?
This lug is designed specifically for 350 MCM copper conductors and is not intended for aluminum wire.
What does a long barrel compression lug provide?
A long barrel design allows for multiple crimps, improving mechanical strength, electrical contact, and long-term reliability.
What stud size fits this compression lug?
This lug is designed for a 1/2-inch stud or bolt.
Why is tin plating important?
Tin plating protects the copper from corrosion and oxidation while maintaining excellent electrical conductivity.
What does the red color code indicate?
The red color code identifies the lug as compatible with 350 MCM conductors for quick visual verification.
What crimping tool should be used?
Use a crimp tool rated for 350 MCM copper lugs and follow proper die selection, including Die Index I-71.
Is this lug suitable for outdoor installations?
Yes. The tin-plated copper finish provides corrosion resistance suitable for indoor and outdoor use.
What is the voltage rating?
This lug is rated up to 35 kV when installed correctly.
What is the maximum operating temperature?
This compression lug is rated for continuous operation up to 90°C.
Where are these lugs commonly used?
They are commonly used in power distribution systems, industrial equipment, renewable energy installations, and utility infrastructure.
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.
