2-Hole Copper Compression Lug 3 AWG 1/4" Stud | 90°C 170A UL
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SKU: 210-09922
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The Conversions Tech 2-Hole Copper Compression Lug is a short-barrel terminal connector engineered for 3 AWG conductors in industrial electrical installations. Designed for switchgear, panelboards, motor control centers, and transformer terminations, this lug provides secure two-bolt mounting with visual confirmation of proper conductor insertion through the integrated sight window. The tin-plated copper construction delivers reliable conductivity with corrosion resistance for long-term service in commercial and industrial power distribution systems.
| Specifications (dimensions per manufacturer UL data sheet) | |
| Part number | 210-09922 |
| Manufacturer catalog number | ST314 |
| Conductor | 3 AWG copper, Class B stranded |
| Stud | 1/4 in, 2 hole, 0.63 in center spacing |
| Barrel | Short, 0.80 in (E), chamfered entry, inspection window |
| Overall length | 2.30 in (B) |
| Tongue width | 1.189 inch |
| Tongue thickness | 0.152 Inch |
| Die | Index 33, Brown, one crimp |
| Material | Electrolytic copper, electro tin plated |
| Rating | UL 486A, cULus, 90 C, 600 V, 100 A at 75 C |
| Color code | Brown |
Specifications
- Conductor Size: 3 AWG
- Stud/Bolt Size: 1/4"
- Barrel Type: Short barrel, chamfered entry
- Pad Configuration: Two-hole design
- Pad Hole Spacing: 1-3/4" (44.5mm)
- Pad Dimensions: 3" L x 1.189" W x 0.152" Thk
- Overall Length: 58.4mm (2.30")
- Neck Length: 34.3mm (1.35")
- Conductor Length: 16.0mm (0.63")
- Outer Diameter: 17.8mm (0.70")
- Inner Diameter: 9.1mm (0.36")
- Hole Diameter: 7.8mm (0.31")
- Width: 20.3mm (0.80")
- Hole Spacing: 7.1mm (0.28")
- Thickness: 2.0mm (0.08")
- Terminal Material: Seamless electro-tin plated copper
- Temperature Rating: 90°C
- Voltage Rating: 35 kV
- Maximum Ampere Rating: 170A
- Color Code: White
- Features: Sight window for visual inspection
- Certifications: UL Recognized, CE Certified, RoHS Compliant
Cross-Reference
Equivalent form factor to Burndy YAV-L, Panduit LCCX, and Ilsco OCI-2H two-hole compression lug series. Conversions Tech lugs are engineered to US specifications and manufactured to equivalent dimensional and performance standards at lower total cost than legacy brands.
FAQ
What crimping tool and die are required for this 3 AWG lug?
Use a standard compression tool with a die set matched to short-barrel copper lugs for 3 AWG conductors. The chamfered barrel entry accommodates standard industry crimpers. Verify die index alignment with the sight window to confirm full conductor insertion before crimping.
Does the 35 kV rating apply to all installation conditions?
The 35 kV rating applies to the lug's insulation withstand capability when properly installed with compatible insulation systems. For medium-voltage applications above 600V, follow NEC Article 310 and manufacturer installation instructions for clearances, insulation, and termination methods appropriate to the system voltage class.
Why does this lug have two holes instead of one?
The two-hole pad design distributes mechanical and electrical load across two mounting points, reducing stress on individual bolts and providing redundant contact in high-vibration environments such as generator terminations, switchgear lineups, and heavy industrial equipment. The 1-3/4" hole spacing matches standard busbar drilling patterns.
Specifications
| Part Number | 210-09922 |
| Category | Electrical connector |
| Weight | 1.0 lb |
| HS Code | 8536.90.4000 |
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.
