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Bare copper compression lug, one-hole, tin finish

Burndy

Burndy YAD30M20E34 One-Hole Compression Lug 250-300 kcmil 3/4 in

SKU CH-5TH0-Y52RC

A tin-plated copper compression lug for 250–300 kcmil wire with a 3/4 in stud hole and 600 V rating

  • TypeElectrical Connectors
  • Handles 250-300 kcmil conductors for heavy-duty power connections
  • Single 3/4 inch bolt hole simplifies bus-bar mounting
  • Tin-plated copper barrel resists corrosion in harsh environments
  • Brazed long barrel withstands 302 °F continuous operating temperature
  • UL 467 listed for grounding and bonding applications

One-Hole Compression Lug 250-300 kcmil

The Burndy YAD30M20E34 is a one-hole compression lug rated for 250 kcmil to 300 kcmil copper conductors. It provides a 3/4 in stud connection for power distribution panels and heavy-duty grounding applications. The tin-plated copper barrel accepts a long-barrel crimp for secure terminations.

Crimp installation with long-barrel tooling

Installation requires a hydraulic crimp tool and dies matched to the long-barrel 300 kcmil size. The brazed barrel seam resists splitting under high compression force. A common error is using short-barrel dies, which leaves the barrel under-crimped and can cause overheating at the joint.

Verify conductor range and stud clearance

Confirm the existing cable falls within the 250 kcmil to 300 kcmil range before ordering. The 1.18 in tongue width and 3/4 in bolt hole must match the busbar or lug pad drilling pattern. The lug is rated for 600 V and a maximum operating temperature of 302 Degrees F.

Highlights

  • Handles 250-300 kcmil conductors for heavy-duty power connections
  • Single 3/4 inch bolt hole simplifies bus-bar mounting
  • Tin-plated copper barrel resists corrosion in harsh environments
  • Brazed long barrel withstands 302 °F continuous operating temperature
  • UL 467 listed for grounding and bonding applications

Specifications

TypeElectrical Connectors
BrandBURNDY

Questions about this item

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

A proper crimp produces a solid, uniform barrel with no visible gaps; the tin-plated copper should show full contact around the conductor and the barrel length of .95 in should be fully engaged.

What comes with the YAD30M20E34 and what must I source separately?

The package contains the one-hole compression lug only; you will need to supply 250 kcmil to 300 kcmil copper wire and a compatible crimping tool.

When should I choose this 3/4 in stud version over other stud sizes?

Select this version when the mounting point requires a 3/4 in bolt hole; the tongue width is 1.18 in to match that stud pattern.

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