Copper Long Barrel Two Hole Compression Lugs 250 MCM 1/2-inch Bolt Size
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SKU: 210-09972
1000 in stock
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250 MCM Copper Long Barrel Two-Hole Compression Lug — 1/2" Bolt
The Conversions Tech Copper Long Barrel Two-Hole Compression Lug delivers high-conductivity, vibration-resistant performance for industrial, commercial, and power distribution systems. Built from seamless premium copper and electro tin-plated for corrosion resistance, this lug supports 250 MCM conductors and a 1/2" stud. The long-barrel design ensures a solid, reliable crimp under high current. A yellow color code simplifies identification. UL Listed and rated for 600 V to 35 kV at 90°C.
Key Features
- Premium seamless copper for superior conductivity and low resistance.
- 250 MCM capacity for heavy-duty feeds and power distribution.
- 1/2" bolt size for secure attachment to busbars, switchgear, and panels.
- Long barrel for deeper compression and crimp stability under vibration.
- Two-hole pad for dual-terminal mounting and added mechanical stability.
- Electro tin-plated finish for corrosion and oxidation resistance.
- Yellow color code enables quick, accurate identification.
- UL Listed; 600 V–35 kV applications; 90°C rating.
Technical Specifications
| Material | High-strength seamless copper, electro tin-plated |
|---|---|
| Color Code | Yellow |
| Conductor Size | 250 MCM |
| Stud / Bolt Size | 1/2 inch |
| Overall Length | 5.219 in |
| Barrel Length | 1.688 in |
| Pad Size | 3.000 in (L) × 1.088 in (W) × 0.157 in (T) |
| Pad Holes | 2 (spacing 1.75 in) |
| Wire Strip Length | 1.75 in |
| Voltage Rating | 600 V to 35 kV |
| Temperature Rating | 90°C |
| Die Index | I-62 |
| Certification | UL Listed |
| Conductor Material | Copper |
Applications
Ideal for switchgear, panelboards, busbar terminations, industrial controls, and power distribution where reliable 250 MCM terminations and two-hole stability are required.
FAQs
What crimp tool and die should I use?
Use a UL-listed hydraulic crimper compatible with Die Index I-62. Always follow the tool and lug manufacturer’s crimp pattern and number of compressions.
Is this lug suitable for outdoor or corrosive environments?
Yes. The electro tin-plated finish enhances corrosion resistance. For highly corrosive locations, consider additional sealing (heat-shrink, antioxidant compound) per your spec.
Can I use this on aluminum conductors?
No. This model is designed for copper conductors. For aluminum, choose a bi-metal lug or an AL-rated termination.
Why choose a two-hole lug over a one-hole lug?
Two-hole pads provide greater mechanical stability, help maintain proper alignment, and reduce loosening under vibration—ideal for high-current, mission-critical terminations.
What is the operating voltage and temperature rating?
Rated for 600 V to 35 kV and 90°C when installed to code with the correct crimp and insulation practices.
Does the yellow color code mean 250 MCM?
Yes. The yellow color code corresponds to the die index and conductor range for this 250 MCM lug, streamlining identification and inspection.
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.
