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Silver aluminium compression lug with a single half-inch stud hole and straight tongue

Burndy

Burndy YA28A3 One-Hole Compression Lug 4/0 AWG 1/2 in Stud

SKU CH-S2X2-T8AHV

One-hole compression lug for 4/0 AWG copper or aluminum conductor with 1/2 in stud, CSA certified and UL listed to 35 kV

  • TypeElectrical Connectors
  • Rated for 35 kV maximum voltage
  • UL 486A-486B listed for safety compliance
  • CSA certified to meet standards
  • Accepts 4/0 AWG aluminum or copper conductors
  • Operates up to 194 degrees Fahrenheit

Compression Lug for 4/0 AWG Conductors

This BURNDY YA28A3 compression lug accepts stranded copper or aluminum conductors at the 4/0 AWG size. A single 1/2 inch stud hole provides a straight, standard-barrel termination for panel or busbar connections. The white colour code and die code 298 identify the correct crimping tool setting for installers.

Replaces loose bolted lugs and split-bolt connectors

A crimped compression joint removes the need for periodic re-torquing that bolted lugs demand in vibration-prone equipment. The upgrade is worth it when a permanent, low-resistance connection must meet CSA and UL 486A-486B listings without inspection-hole access. The aluminium barrel and 1.17 inch tongue width match standard busbar drilling patterns.

Limited to single-hole, straight-tongue geometry

The lug cannot serve dual-stud or angled-tongue layouts, so panel designs requiring staggered or offset holes must use a different part. Maximum operating temperature is 194 degrees F and maximum voltage is 35 kV, so applications exceeding either limit fall outside the UL listing. No inspection hole means visual verification of conductor insertion is not possible after crimping.

Highlights

  • Rated for 35 kV maximum voltage
  • UL 486A-486B listed for safety compliance
  • CSA certified to meet standards
  • Accepts 4/0 AWG aluminum or copper conductors
  • Operates up to 194 degrees Fahrenheit

Specifications

BrandBURNDY
TypeElectrical Connectors

Questions about this item

What stud size does the 1.17 in tongue width on the YA28A3 lug fit?

The straight tongue is drilled for a 1/2 in stud, so the 1.17 in width aligns with that hardware.

Which crimp die code should I use when installing this compression lug?

Use die code 298 with a compatible compression tool; the white colour code on the barrel confirms the correct die.

Does the inspection hole on this lug need periodic checking after installation?

The lug has no inspection hole, so no visual verification or later re-inspection of the crimp is possible.

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