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Copper bolt connector with threaded stud, 3.45in long

Burndy

Burndy KC28B1 Bolt Connector Copper 3.45in

SKU CH-CA6G-TY5WR

A copper split-bolt grounding connector rated for 1–4/0 AWG solid or stranded wire with a 5/8-11 stud, 3.45 in overall length and 660 in-lb installation torque, UL 467 listed for direct burial

  • Product typeElectrical Connectors
  • Copper alloy construction ensures reliable grounding connections
  • Mechanical split-bolt design accepts 1 to 4/0 AWG solid or stranded conductors
  • UL Listed and UL467 rated for direct-burial applications
  • 660 in-lb installation torque provides secure, code-compliant joints
  • 45 in overall length fits standard grounding layouts

Burndy KC28B1 Copper Split Bolt

The Burndy KC28B1 is a copper-alloy split bolt connector rated for grounding conductors from 1 AWG through 4/0 AWG solid or stranded. It carries UL listing for direct burial and meets UL 467 requirements. The connector accepts a single grounding wire and installs with a 5/8 inch-11 threaded stud. Overall length measures 3.45 inches and overall width is 1 3/16 inches.

Suitable for heavy-duty grounding

Electricians and utility crews running large-gauge copper ground wires into earth or concrete will find the conductor range and burial rating appropriate. The single-wire entry and high installation torque of 660 in-lb limit use to one substantial conductor per connector. Installers needing multi-wire taps, smaller wire sizes or a lower torque spec should look at other connector styles.

Handles 1 to 4/0 AWG copper

The connector comfortably secures the full stated range of solid or stranded copper grounding conductors in direct-burial applications. Mechanical capacity is reached when a single conductor at the upper end of the range is torqued to the specified value. Applications requiring more than one wire per connector or conductor sizes outside the 1 to 4/0 AWG window exceed the design limits.

How it compares

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Price $93.99
Pricier than about 83% of the 1,610 comparable items (median $25.99).

Specifications

Product
Brand nameBURNDY
Product typeElectrical Connectors

Questions about this item

What conductor sizes does the KC28B1 accept for the run?

The connector handles run conductors from 1 AWG up to 4/0 AWG, both solid and stranded copper.

Will the 5/8 in. -11 thread fit my existing ground rod clamp?

Yes, the stud uses a standard 5/8 in. -11 thread that matches common ground rod clamps and hardware.

How do I verify the KC28B1 is torqued correctly after installation?

Tighten the bolt to 660 in-lb using a calibrated torque wrench; the UL 467 listing confirms the rating.

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