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Bronze split-bolt connector with hex head, plain finish

Thomas & Betts

Thomas & Betts BLACKBURN 3H Split-Bolt Connector 8-3 AWG

SKU CH-1Q9P-6NFFY

Bronze split-bolt connector joins copper conductors from 8 to 3 AWG at up to 600 V with 225 in-lb torque

  • Product typeElectrical Connectors
  • Connects 8–3 AWG copper conductors with a single split-bolt
  • Bronze body resists corrosion in harsh electrical environments
  • Hex head allows secure tightening to 225 in-lb torque
  • Rated for 600 V maximum voltage in industrial circuits
  • Compact 1.06 in length fits tight junction boxes

BLACKBURN 3H Split-Bolt Connector 8-3 AWG

The BLACKBURN 3H Split-Bolt Connector joins copper conductors ranging from 8 AWG to 3 AWG for equal run and tap sizes. Rated for 600 V maximum voltage, it suits electrical and industrial wiring tasks where a secure bolted joint is required. The bronze body with plain finish provides corrosion resistance in standard environments.

Upgrading from crimp or twist-on connectors

This split-bolt replaces crimp sleeves or twist-on wire connectors when a reusable, high-torque mechanical joint is preferred. The hex head design accepts a wrench for controlled tightening to 225 in-lb, ensuring consistent contact pressure. The jump is worth it for installations that may need future inspection, retorquing or conductor changes without cutting.

Check conductor size and torque tool before ordering

Verify that all conductors fall within the 8 AWG to 3 AWG range for run and tap positions. Ensure a suitable wrench or socket is available for the 0.719 in hex nut and 0.53 in head width. Confirm the 1.06 in overall length fits within the enclosure or splice box space allocated for the connection.

How it compares

Measured against everything we stock in Wire, Cable & Wiring Supplies, at today’s prices. Recalculated every night.

Price $4.99
Cheaper than about 90% of the 1,610 comparable items (median $25.99).

Specifications

Product
Brand nameBLACKBURN
Product typeElectrical Connectors

Questions about this item

What wire sizes can the Blackburn 3H split-bolt connector accept?

It accepts copper conductors from 8 AWG up to 3 AWG for equal, run and tap connections.

What torque value should be applied to the hex nut during installation?

Tighten the hex nut to 225 in-lb; the nut measures 0.719 in across flats and the head width is 0.53 in.

Does the bronze body need any corrosion protection over time?

The plain-finish bronze body resists corrosion on copper conductors; inspect periodically and retorque to 225 in-lb if connections loosen.

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