CT-LB250-12 Copper Compression Lug — Long Barrel, 1-Hole, 250 kcmil, 1/2 in Stud, Tin-Plated
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SKU: CT-LB250-12
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The Conversions Tech CT-LB250-12 is a one-hole long-barrel compression lug for terminating 250 kcmil Class B stranded copper conductors in power distribution, switchgear, transformer, motor, and grounding applications. The barrel is manufactured from seamless high-conductivity electrolytic copper tubing and electro tin-plated for low contact resistance and long-term corrosion protection. The extended barrel accepts two crimps for maximum pull-out strength, and the chamfered entry eases conductor insertion. Each lug is stamped with conductor size, die index, and color code for correct die selection.
| Specifications (dimensions per manufacturer UL data sheet) | |
| Part number | CT-LB250-12 |
| Manufacturer catalog number | LB25012 |
| Conductor | 250 kcmil copper, Class B stranded through M (flex-rated) |
| Stud | 1/2 in, 1 hole |
| Barrel | Long, 1.58 in (E), chamfered entry, inspection window |
| Overall length | 3.06 in (B) |
| Die | Index 62, Yellow, two crimps |
| Material | Electrolytic copper, electro tin plated |
| Rating | UL 486A, cULus, 90 C, 600 V, 255 A at 75 C |
| Color code | Yellow |
Key Specifications
| Catalog Number | CT-LB250-12 |
| Connector Type | Compression lug, long barrel, chamfered entry |
| Conductor | 250 kcmil copper, Class B (Code) stranded • also 250 (61) Navy |
| Stud / Hole | 1/2 in stud • Ø0.53 in (13.5 mm), 1-hole |
| Tongue | Standard straight, 1.11 in W × 0.16 in thick |
| Barrel | 1.62 in long, Ø0.75 in OD • 2 crimps |
| Overall Length | 3.26 in (83 mm) |
| Strip Length | 1-11/16 in |
| Die / Color Code | Die index 16 • Yellow — compatible with standard U-type 12-ton dies |
| Voltage Rating | 600 V – 35 kV max (with proper spacing and insulation) |
| Temperature Rating | 194°F (90°C) |
| Material / Finish | Seamless electrolytic copper, electro tin-plated |
| Certifications | UL Listed 486A-486B • CSA Certified • RoHS Compliant |
Features
- Seamless electrolytic copper — maximum conductivity and ductility
- Long barrel accepts two crimps for superior pull-out strength
- Chamfered barrel entry eases conductor insertion
- Electro tin plating resists corrosion and keeps contact resistance low
- Yellow color code and die index 16 stamped on every lug for fast die selection
- Rated 600 V through 35 kV
Cross-Reference
| Manufacturer | Catalog No. | Notes |
| Burndy® | YA29 | Direct equivalent — same format, die index 16 |
| Panduit® | LCB250-12-X | Direct equivalent — 1-hole long barrel, 1/2 in stud |
| ILSCO | CLNS-250-12 | Functional equivalent — long barrel, no window; ILSCO die I-62 |
Trademarks are property of their respective owners and used for cross-reference identification only. Verify die selection with your tooling manufacturer.
Install per NEC and applicable local codes. Crimp with a calibrated compression tool using die index 16. For circuits above 600 V, apply proper high-voltage spacing and insulation techniques.
Specifications
| Part Number | CT-LB250-12 |
| Category | Electrical connector |
| Stud Size | 1/2" |
| Weight | 0.6 lb (est.) |
| HS Code | 8536.90.4000 |
Direct Cross-Reference — One-Hole Long Barrel, 250 kcmil, 1/2" stud
CT P/N CT-LB250-12 is a dimensional and electrical equivalent replacement for:
| Manufacturer | Part Number |
|---|---|
| Burndy (Hubbell) | YA29 |
| Panduit | LCB250-12-X |
| NSI Industries | L25048 |
All trademarks are property of their respective owners and are used for compatibility identification only. Conversions Tech products meet the same UL 486A dimensional and electrical standards at distributor-direct pricing.
Why Pros Buy Direct from Conversions Tech
Quality-tested and UL Listed. Every product we carry is built to our specifications by certified manufacturing partners and 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.
