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Copper compression lug, one hole, tin finish, long barrel

Burndy

Burndy YAD4CM20E34 One-Hole Compression Lug 4 AWG 3/4 in Stud Long

SKU CH-1CFC-5P6HP

One-hole compression lug for 4 AWG wire with 3/4 inch stud, long barrel, tin-plated copper, rated 600 V and 302 °F

  • TypeElectrical Connectors
  • Secure 4 AWG connection with 600 V rating
  • Long brazed barrel provides 0.43 in crimp length
  • Tin-plated copper contact resists corrosion
  • Single 3/4 in stud hole simplifies mounting
  • UL 467 listed for grounding applications

Product Application

This Burndy YAD4CM20E34 compression lug terminates a single 4 AWG copper conductor with a 3/4 inch stud hole. The long barrel provides an extended crimp area for secure power connections in industrial and automotive electrical systems. Tin-plated copper construction resists corrosion while maintaining high conductivity up to 600 volts.

Installation Fit

The one-hole design suits panel boards, bus bars and equipment terminals that accept a 3/4 inch mounting stud. Brazed barrel construction prevents the seam from splitting during the crimp process. Installers requiring a two-hole NEMA pattern or a different stud diameter should select an alternative lug configuration.

Critical Specification

The connector is rated for a maximum operating temperature of 302 degrees Fahrenheit and carries UL 467 listing for grounding and bonding applications. Barrel length measures 0.43 inch with an outside diameter of 0.41 inch, while the tongue width is 1.1 inches. Crimp tooling must match these dimensions to achieve a compliant connection.

Highlights

  • Secure 4 AWG connection with 600 V rating
  • Long brazed barrel provides 0.43 in crimp length
  • Tin-plated copper contact resists corrosion
  • Single 3/4 in stud hole simplifies mounting
  • UL 467 listed for grounding applications

Specifications

BrandBURNDY
TypeElectrical Connectors

Questions about this item

How can I confirm the lug is crimped correctly after installation?

After crimping, inspect the barrel for a uniform, gap-free compression and verify the tin-plated copper contact shows no cracks; the long barrel length of 0.43 in and outside diameter of 0.41 in should be fully formed around the 4 AWG conductor.

What comes with the lug and what must I supply separately?

The package contains the single one-hole compression lug with 3/4 in stud hole, 1.1 in tongue width and brazed barrel; you must supply 4 AWG copper wire and a compatible crimp tool and die set.

Which version should I choose if I need a long-barrel 4 AWG lug for a 3/4 in stud?

Select the YAD4CM20E34 model; it is specified for 4 AWG maximum and minimum wire size, 600 V rating, 302 °F maximum temperature, UL 467 listed, with long barrel style and tin finish.

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