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Tin-plated copper split-bolt connector, square head, 2.66 in long, 1.14 in wide

Burndy

Burndy KSU29 Split-Bolt Connector 1 AWG–250 kcmil

SKU CH-GSWA-FNM0H

Split-bolt connector joins 1 AWG to 250 kcmil copper, aluminum or steel conductors with a tin-plated copper body rated to 35 kV and 650 in-lb torque

  • TypeElectrical Connectors
  • Connects copper to aluminium wire
  • Tin-plated copper body resists corrosion
  • CSA certified and UL 486A listed
  • 650 in-lb torque for secure grip
  • Compact 2.66 in length fits tight spaces

Application range

The Burndy KSU29 split-bolt connector joins aluminium, copper or steel conductors in a single mechanical joint. It accepts run wires from 1 AWG up to 250 kcmil and tap wires from 8 AWG to 250 kcmil, making it suitable for utility, industrial and commercial power circuits rated up to 35 kV.

Mechanical installation

A tin-plated copper body resists corrosion while the square-head bolt is torqued to 650 in-lb to create a gas-tight connection without specialised compression tools. The compact 2.66 in by 1.14 in profile fits tight enclosures and allows visual confirmation of proper seating during routine inspections.

Compliance and packaging

The connector carries CSA certification and UL 486A listing for copper conductors, satisfying common North American electrical-code requirements. It is supplied as a single component with no additional hardware, lubricant or software, so installers must provide their own torque wrench and any required insulating tape or covers.

Highlights

  • Connects copper to aluminium wire
  • Tin-plated copper body resists corrosion
  • CSA certified and UL 486A listed
  • 650 in-lb torque for secure grip
  • Compact 2.66 in length fits tight spaces

Specifications

TypeElectrical Connectors
BrandBURNDY

Questions about this item

How do I install the Burndy KSU29 split-bolt connector and what torque setting should I use?

Place the run and tap conductors into the connector body, then tighten the square head bolt to 650 in-lb using a calibrated torque wrench; the step most often missed is verifying that both wires are fully seated before applying final torque.

What maintenance or replacement will the Burndy KSU29 connector need over time?

Inspect the tin-plated copper body periodically for corrosion or overheating discoloration; re-torque the square head bolt to 650 in-lb if the connection loosens, and replace the connector if the bolt threads strip or the body shows pitting.

What is the first limit reached on the Burndy KSU29 connector under sustained heavy load?

The 35 kV maximum voltage rating and 650 in-lb torque limit define the electrical and mechanical boundaries; exceeding either risks insulation breakdown or bolt failure before the copper body itself reaches its thermal limit.

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