Blackburn Split-Bolt Connector...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$71.83
$8.47
Blackburn 4HPS SPLIT-BOLT CONNECTOR 4-12 AWG COPPE

Blackburn Split-Bolt Connector 4-12 AWG Copper Alloy with Electro Tin-Plated Finish

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Model: 4HPS
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$71.83
$8.47
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Blackburn Split-Bolt Connector 4-12 AWG Copper Alloy with Electro Tin-Plated Finish

Professional electrical connections for reliable wire management applications

The Blackburn Split-Bolt Connector delivers dependable electrical connections for 4-12 AWG copper conductors. Constructed from durable copper alloy with electro tin-plated surface finishing, this mechanical connector provides secure wire-to-wire connections for professional electrical installations and maintenance applications.

Professional Features & Benefits

  • 4-12 AWG Wire Range: Accommodates multiple conductor sizes for versatile installation flexibility and compatibility across various electrical applications.
  • Copper Alloy Construction: Provides excellent conductivity and mechanical strength for long-lasting electrical connections and reliable performance.
  • Electro Tin-Plated Finish: Enhances corrosion resistance and ensures optimal electrical contact for extended service life in demanding environments.
  • UL E9809 Standards Compliance: Meets recognized safety and performance standards for professional electrical connector applications.
  • Split-Bolt Design: Enables secure mechanical connection without requiring specialized tools for efficient installation and maintenance.
  • Mechanical Connection Type: Delivers reliable wire-to-wire connections through proven mechanical fastening technology for consistent electrical continuity.

Technical Specifications

  • Country Of Origin: Mexico (MX)
  • Department: Electrical
  • Material: Copper Alloy
  • Product Group: Wire & Cable Management
  • Product Subgroup: Connectors
  • Product Type: Split-Bolt
  • Selling Unit Of Measure: each
  • Standards: UL E9809
  • Surface Finishing: Electro Tin-Plated
  • Type2: Mechanical connectors

Professional Applications

  • Residential electrical installations and repairs
  • Commercial building electrical systems
  • Industrial facility wire management
  • Electrical panel and junction box connections
  • Maintenance and retrofit electrical projects
  • Professional electrical contractor applications

Why Choose Blackburn Quality?

Blackburn delivers proven reliability through UL E9809 standards compliance and durable copper alloy construction with electro tin-plated finishing. This professional-grade split-bolt connector ensures dependable electrical connections for demanding wire management applications across residential, commercial, and industrial installations.

Manufacturer Resources

Product Specs

Country Of Origin:
Mexico (MX)
Product Group:
Wire & Cable Management
Product Type:
Split-Bolt
Selling Unit Of Measure:
each
Standards:
UL E9809
Surface Finishing:
Electro Tin-Plated
Type2:
Mechanical connectors
Department:
Electrical
Product Subgroup:
Connectors
Product Material:
Copper Alloy

Blackburn 4HPS – Frequently Asked Questions

1) What wire sizes does the Blackburn 4HPS split-bolt connector take?
The Blackburn 4HPS handles copper conductors from 4 AWG down to 12 AWG, so it covers a tap range from a #4 feeder onto a #12 branch or ground conductor. It is rated for copper only, so do not use it on aluminum conductors.
2) Can I use a split-bolt connector on aluminum wire?
Not this one. The 4HPS is a copper-rated split bolt, built in copper alloy with an electro tin-plated finish, and it is listed for 4-12 AWG copper. Aluminum needs a connector specifically rated AL or AL/CU, used with the appropriate oxide-inhibiting compound. Putting aluminum in a copper-only split bolt creates a dissimilar metal joint that loosens and heats up.
3) Do I need to tape or insulate a split-bolt connection after tightening it?
Yes. A split bolt is a bare mechanical connector, so the completed joint has to be insulated to the level of the conductor insulation, normally rubber splicing tape built up over the bolt and then covered with vinyl electrical tape, or a split-bolt insulating cover. The 4HPS ships as a bare connector with no insulation included.
4) Is the Blackburn 4HPS split bolt UL listed?
The 4HPS is built to UL E9809. That is the UL file reference carried on the connector, covering it as a mechanical wire connector.
5) What tools do I need to install a split-bolt connector?
Just a wrench or socket to torque the nut down on the bolt. No crimper, no die set, no hydraulic tool. That is the practical reason maintenance crews keep split bolts on the truck instead of compression sleeves: the joint can be made, opened, and remade with hand tools in a junction box or panel.
6) Split bolt or compression connector for tapping a copper feeder?
A split bolt like the 4HPS is the choice when you need a re-enterable, tool-light tap that a later tech can open up. A compression connector gives a permanent, pre-insulated or heat-shrinkable joint with a controlled crimp, but you need the matching die and tool and the connection cannot be undone. For panel and junction box taps, retrofits, and grounding pigtails in the 4-12 AWG copper range, the split bolt is the usual call.
7) Can I use this split bolt to tap a ground or bonding conductor?
Yes, within its range. The 4HPS is a copper-only mechanical connector for 4-12 AWG, which covers the common #6 and #4 grounding electrode and bonding jumper sizes as well as #12 equipment grounds. Insulate or protect the finished connection as the installation requires, and confirm the specific application is permitted by your local inspector for direct burial or concrete encasement.
8) Why does the split bolt have a tin plating instead of bare copper?
The electro tin plating on the 4HPS resists corrosion and keeps a clean contact surface at the conductor interface, which matters in damp, outdoor, or industrial locations where bare copper oxidizes. The body itself is copper alloy for conductivity and clamping strength.
9) Is the Blackburn 4HPS sold individually or in a box?
The 4HPS split-bolt connector is sold each, so order the exact count you need rather than a fixed carton. It is made in Mexico.
How fast can I get the Blackburn 4HPS delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Blackburn 4HPS come with a warranty?
Absolutely. The Blackburn 4HPS is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Blackburn 4HPS?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Blackburn 4HPS from ZenSupply?
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