Thomas & Betts Blackburn 20H Split-Bolt Connector 2 AWG to 2/0 AWG

Blackburn 20H Split-Bolt Connector 2 AWG to 2/0 AWG

The Blackburn 20H is a bronze split-bolt connector designed to join copper conductors in electrical installations. It accepts equal run and tap wires ranging from 2 AWG to 2/0 AWG. The connector carries CSA certification and UL listing E9809 for code-compliant work. It is suited for electricians and maintenance crews making permanent copper-to-copper splices.

Wire range 2 AWG to 2/0 AWG copper

The single specification that determines fit is the conductor range: minimum equal wire size 2 AWG and maximum equal wire size 2/0 AWG. Minimum run wire is fixed at 2 AWG while the tap wire spans the same 2 AWG to 2/0 AWG window. Using wire outside this range will prevent a secure mechanical and electrical connection. Always verify the installed conductor gauge before ordering.

Hex-head bronze body rated 600 V

The plain-finish bronze body uses a hex head measuring 0.88 in across with a 1.063 in hex nut for standard wrench tightening. Overall length is 1.81 in, keeping the joint compact inside junction boxes or enclosures. Rated for 600 V maximum, the connector runs cool under normal load because the large bronze mass dissipates heat without a separate cooling device. No fan or active thermal management is required.