What size compression lug do I need?

Match the lug barrel to your conductor AWG and the stud hole to your terminal bolt. Common stud sizes are 1/4 inch, 5/16 inch, 3/8 inch, and 1/2 inch. Use our lug sizing guide at conversionstech.com for the complete AWG-to-stud chart.

What is the difference between compression and mechanical lugs?

Compression lugs use a permanent crimp creating a gas-tight connection with lower resistance and better long-term reliability. Mechanical lugs use set screws allowing removal for maintenance. Compression is preferred for permanent installations.

Are Conversions Tech compression lugs UL listed?

Yes. All Conversions Tech compression lugs carry UL 486A/B listing and meet IEEE 837 pull-out force requirements. They are suitable for power circuit terminations per NEC Article 110.14.

Do you offer bulk pricing on compression lugs?

Yes. Contractors and distributors can save up to 25 percent through our Pro Pricing Program with volume breaks on 100 plus units and Net 30 or 60 payment terms. Apply at conversionstech.com/pages/wholesale.

When do I need a two-hole lug instead of one-hole?

When the equipment or specification requires it - typically utility, switchgear, and seismic applications where the second bolt prevents rotation. NEMA 2-hole pads are the default in most T&D standards.

What is standard NEMA two-hole spacing?

Common spacings are 5/8 in and 1 in centers on smaller lugs and 1-3/4 in on larger pads, matching NEMA drilling. Check the product's pad dimensions against your bus drilling before ordering.

Do two-hole lugs use the same dies as one-hole?

Yes. Die selection is driven by conductor size and barrel type, not pad style. Use the die index on the product page.

Compression Lugs — 2-Hole | Trade Pricing

Two-hole (NEMA pad) copper compression lugs for stranded copper conductors, 10 AWG through 750 MCM. The two-bolt pad prevents rotation and meets utility and industrial specifications requiring NEMA 2-hole terminations. UL listed, tin plated, color-coded, die-indexed — equivalents to Burndy YA-2N/YAV-2, Panduit LCC/LCD, and Ilsco 2-hole series at distributor pricing.

When a spec calls for two-hole

Two-hole pads are mandatory in most utility, substation, switchgear, and seismic-rated installations because the second bolt eliminates rotation under fault current and vibration. Standard hole spacings (1" and 1-3/4" on larger sizes) match NEMA drilling patterns — verify your bus or equipment pad drilling before ordering.

Contractor & distributor pricing →