250 MCM Copper Long Barrel Compression Lug – 1-Hole, 5/8" Stud | Conversions Tech
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SKU: 210-09863
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250 MCM Copper Long Barrel Compression Lug – 1-Hole, 5/8" Stud | Conversions Tech
The Conversions Tech 250 MCM Copper Long Barrel One-Hole Compression Lug is engineered for high-performance electrical connections in demanding industrial and commercial applications. Designed for 250 MCM copper conductors, this lug features a single 5/8-inch stud hole and a long barrel construction that delivers exceptional mechanical strength and low-resistance electrical performance.
Manufactured from seamless electro-tin plated copper, this tinned copper compression lug provides excellent conductivity and corrosion resistance for long-term reliability. The vibrant yellow color code allows for fast visual identification, improving installation efficiency and reducing the risk of wiring errors in the field.
Key Features
- 250 MCM Conductor Size: Designed specifically for terminating 250 MCM copper cables in high-current systems.
- 5/8" Stud Size: Ensures a secure, stable connection to standard terminals, bus bars, and electrical equipment.
- Premium Copper Construction: Delivers outstanding electrical conductivity and long-lasting mechanical strength.
- Long Barrel Design: Supports multiple crimps for enhanced pull-out strength and consistent electrical contact.
- Chamfered Barrel Entry: Guides stranded conductors smoothly into the barrel for faster, cleaner installations.
- Tin-Plated Finish: Protects against oxidation and corrosion while maintaining low electrical resistance.
- High-Visibility Yellow Color Code: Enables quick identification and improves installation accuracy.
- Heavy-Duty Performance: Built for high-stress, high-current industrial and commercial environments.
Common Applications
- Industrial power distribution and switchgear
- Commercial electrical panels and equipment
- Renewable energy systems and battery storage
- Utility infrastructure and grounding systems
- High-current terminations requiring large stud connections
Technical Specifications
| Material | Seamless Electro-Tin Plated Copper |
| Conductor Size | 250 MCM |
| Stud Size | 5/8 Inch |
| Pad Holes | 1 |
| Barrel Type | Long, with Chamfered Entry |
| Color Code | Yellow |
| Overall Length | 3.873 Inches |
| Barrel Length | 2.0 Inches |
| 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 compression lug designed for?
This lug is designed specifically for 250 MCM copper conductors and is not intended for aluminum wire.
What is the benefit of a long barrel compression lug?
A long barrel allows for multiple crimps, increasing mechanical strength, reducing resistance, and improving long-term reliability.
What stud size does this lug fit?
This compression lug fits a standard 5/8-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 yellow color code indicate?
The yellow color code identifies the lug as compatible with 250 MCM conductors for quick visual verification.
Is this lug suitable for outdoor installations?
Yes. The tin-plated copper construction provides corrosion resistance suitable for both indoor and outdoor environments.
What voltage is this lug rated for?
This compression lug is rated up to 35 kV when properly installed.
What is the maximum operating temperature?
This lug is rated for continuous operation up to 90°C.
What crimping tool should be used?
Use a crimp tool rated for 250 MCM copper lugs and follow the manufacturer-recommended die selection.
Where are these lugs commonly used?
They are commonly used in industrial power distribution, commercial electrical systems, 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.
