Blackburn 4H High-Strength Spl...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$62.99
$7.93
Blackburn 4H H-STRNGTH SPLITBLT CONN 4-8SLD

Blackburn 4H High-Strength Split-Bolt Connector 4-8 AWG Bronze Alloy

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

$62.99
$7.93
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Blackburn 4H High-Strength Split-Bolt Connector 4-8 AWG Bronze Alloy

Professional mechanical wire connection solution for reliable electrical installations

The Blackburn 4H High-Strength Split-Bolt Connector delivers dependable wire-to-wire connections for 4-8 AWG conductors. Constructed from durable bronze alloy with a metallic finish, this mechanical connector provides secure electrical connections in professional electrical installations. UL E9809 listed for safety and compliance, ensuring reliable performance in wire and cable management applications.

Professional Features & Benefits

  • 4-8 AWG Wire Range: Accommodates multiple conductor sizes for versatile installation flexibility and connection options.
  • Bronze Alloy Construction: Provides excellent conductivity and corrosion resistance for long-lasting electrical connections.
  • High-Strength Design: Delivers secure mechanical connection that maintains contact pressure over time.
  • Split-Bolt Configuration: Enables quick installation and reliable wire-to-wire connections without specialized tools.
  • UL E9809 Listed: Meets rigorous safety standards for professional electrical installations and code compliance.
  • Metallic Finish: Offers enhanced durability and professional appearance in electrical enclosures.

Technical Specifications

  • Color: Metallic
  • Country Of Origin: Mexico (MX)
  • Department: Electrical
  • Material: Bronze Alloy
  • Product Group: Wire & Cable Management
  • Product Subgroup: Connectors
  • Product Type: Split-Bolt
  • Selling Unit Of Measure: each
  • Standards: UL E9809
  • Type2: Mechanical connectors

Professional Applications

  • Residential electrical panel connections
  • Commercial building wire management
  • Industrial control panel installations
  • Service entrance connections
  • Grounding and bonding applications
  • Electrical maintenance and repair work
  • Professional contractor installations

Why Choose Blackburn Quality?

Blackburn delivers proven reliability in electrical connection solutions with UL E9809 listing ensuring safety and code compliance. The bronze alloy construction and high-strength design provide dependable performance for professional electrical installations, backed by rigorous manufacturing standards and quality control processes.

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
Type2:
Mechanical connectors
Department:
Electrical
Product Subgroup:
Connectors
Product Color:
Metallic
Product Material:
Bronze Alloy

Blackburn 4H – Frequently Asked Questions

1) What wire sizes does the Blackburn 4H split-bolt connector take?
The Blackburn 4H handles 4 through 8 AWG conductors, so it covers the common range for feeder taps, panel work, and bonding jumpers in that size band. Both wires being joined need to fall inside that 4-8 AWG range; going to a larger conductor means stepping up to a bigger split-bolt in the series rather than forcing this one.
2) Can I use a 4H split-bolt for grounding and bonding connections?
Yes. Grounding and bonding is one of the listed applications for the 4H, and the bronze alloy body is what makes it suitable there, since bronze resists corrosion and carries current well for a mechanical tap on a ground electrode conductor or bonding jumper. It is UL listed under E9809.
3) Is the 4H a UL listed connector for code inspection?
The 4H carries UL listing under file E9809, which is what an inspector looks for on a mechanical connector used in a panel, service entrance, or bonding application. That listing is stated for the product itself, not just the brand.
4) Do split-bolt connectors need to be taped or insulated after installation?
A split-bolt like the 4H is a bare mechanical connector, bronze alloy with a metallic finish and no insulating cover, so any connection made in an energized circuit has to be insulated in the field with rubber tape and a vinyl overwrap, or covered with an insulating cap. For a bare grounding or bonding connection, no insulation is required.
5) Do I need a crimper or special tool to install a Blackburn 4H?
No crimping tool is needed. The 4H is a mechanical split-bolt: lay the two conductors into the split, thread the nut down, and torque it with a standard wrench or socket. That is the main practical difference from a compression connector, which needs a die and a hydraulic or battery crimper.
6) Should I use a split-bolt or a compression connector for a 4 AWG tap?
For a 4 AWG tap, a split-bolt like the 4H is the faster choice when the splice is accessible and you want a reusable, serviceable connection, since it needs only a wrench and can be taken apart later. A compression connector is the better pick where the splice will be buried, direct-buried, or subject to vibration, because it cannot loosen and needs no re-torquing. The 4H is a mechanical connector by design.
7) What is the manufacturer part number for the Blackburn 4H split-bolt?
The part number is simply 4H, the Blackburn designation for the high-strength split-bolt covering 4-8 AWG. Distributors cross-referencing should match on 4H rather than on the wire range alone, since other split-bolt models overlap in size coverage.
8) Will a bronze split-bolt corrode if used in a damp electrical vault or outdoor enclosure?
Bronze alloy is specified for the 4H precisely because it resists corrosion better than plain steel hardware, which is why split-bolts of this type are used on grounding connections in damp locations. Note it is a bronze connector, so pair it with copper conductors; joining copper to aluminum needs a connector rated for that combination.
9) Is the Blackburn 4H sold individually or in a box?
The 4H is sold each, so the quantity you order is the number of connectors you get. Buyers stocking a truck or a maintenance crib order the count they need rather than a carton multiple.
How fast can I get the Blackburn 4H 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 4H come with a warranty?
Absolutely. The Blackburn 4H 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 4H?
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 4H from ZenSupply?
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