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 with trade 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.
