Blackburn 500M High-Strength S...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$274.34
$139.36
Blackburn 500M H-STRNGTH SPLITBLT CONN 500-400

Blackburn 500M High-Strength Split-Bolt Connector 500-400 Bronze Alloy

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Model: 500M
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$274.34
$139.36
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Blackburn 500M High-Strength Split-Bolt Connector 500-400 Bronze Alloy

Professional mechanical connector for reliable wire and cable connections

The Blackburn 500M High-Strength Split-Bolt Connector delivers dependable electrical connections for 500-400 applications. Constructed from durable bronze alloy with a metallic finish, this mechanical connector provides the strength and reliability required for professional electrical installations. UL E9809 listed for safety and performance assurance.

Professional Features & Benefits

  • 500-400 Capacity Rating: Accommodates specific wire sizes for versatile connection applications in electrical systems.
  • Bronze Alloy Construction: Provides superior corrosion resistance and mechanical strength for long-lasting performance.
  • High-Strength Split-Bolt Design: Ensures secure mechanical connection with reliable contact pressure for consistent electrical performance.
  • Metallic Finish: Offers enhanced durability and professional appearance for visible installations.
  • UL E9809 Listed: Meets rigorous safety standards for electrical connector applications and code compliance.
  • Mechanical Connection Type: Provides dependable wire-to-wire connections without requiring specialized tools or welding.

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

  • Electrical Panel Connections
  • Service Entrance Applications
  • Industrial Wiring Systems
  • Commercial Electrical Installations
  • Utility Connection Points
  • Grounding System Connections
  • Power Distribution Systems

Why Choose Blackburn Quality?

Blackburn delivers proven reliability through UL E9809 listing and bronze alloy construction that ensures long-term performance in demanding electrical applications. The metallic finish and high-strength design provide the durability professionals trust for critical connections.

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 500M – Frequently Asked Questions

1) What wire size does the Blackburn 500M split-bolt connector take?
The 500M is the 500-400 size in Blackburn's high-strength split-bolt line, so it is sized for large service and feeder conductors in that range rather than branch-circuit wire. If you are tapping #10 or #12 building wire, this is far too large a body to get proper contact pressure, and you want a small split-bolt or a set-screw connector instead.
2) Can I use a 500M split-bolt on a copper grounding electrode conductor connection?
Grounding system connections are among the listed applications for the 500M, and the bronze alloy body is the usual choice for copper-to-copper grounding taps because the two metals sit close together galvanically. It is a mechanical connector, so it is made up with a wrench, no crimp tool or exothermic mold needed.
3) Is a split-bolt the right connector for me, or should I use a compression lug?
A split-bolt like the 500M is a wire-to-wire tap or splice: two conductors go in the strap, the nut draws them together, and you insulate over it. It needs no crimp tool or die set. A compression lug is what you use to land a conductor on a bus bar, breaker, or ground bar with a bolt hole. If your termination point has a stud or pad, the split-bolt is the wrong part.
4) Does the 500M come insulated, or do I have to tape it?
It ships as a bare bronze-alloy connector with a metallic finish. Insulating the completed splice is on the installer, whether that is half-lapped rubber and vinyl tape or a molded split-bolt cover sized for a 500 kcmil body.
5) Will a bronze split-bolt hold up in a damp or outdoor utility vault?
Bronze alloy is the reason this one gets specified for service entrance and utility connection points: it resists corrosion better than plated steel hardware in damp locations. It still needs to be insulated and, in a direct-buried or submerged application, protected accordingly.
6) How is the Blackburn 500M sold, individually or in a box?
Each. The selling unit is a single connector, so a two-conductor splice is one piece and a three-way tap job needs you to count your connections.
7) What is the exact part number and origin on the Blackburn 500M?
Manufacturer part number 500M, made in Mexico. For distributors matching a line item, it is the 500-400 high-strength split-bolt in the Blackburn mechanical connector range.
How fast can I get the Blackburn 500M 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 500M come with a warranty?
Absolutely. The Blackburn 500M 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 500M?
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 500M from ZenSupply?
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