Blackburn Aluminum Split-Bolt ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$138.44
$58.09
Blackburn APS21 AL TP DUAL SPLITBOLT CONN 2/0-4STR

Blackburn Aluminum Split-Bolt Connector 2/0-4 STR Dual with Electro Tin-Plated Finish

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Model: APS21
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$138.44
$58.09
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Blackburn Aluminum Split-Bolt Connector 2/0-4 STR Dual with Electro Tin-Plated Finish

Professional Dual Split-Bolt Connection Solution

The Blackburn aluminum split-bolt connector delivers reliable electrical connections for 2/0-4 STR wire applications. This dual split-bolt connector features durable aluminum construction with electro tin-plated surface finishing for enhanced conductivity and corrosion resistance. UL E9809 listed for professional electrical installations requiring secure mechanical connections.

Professional Features & Benefits

  • 2/0-4 STR Wire Capacity: Accommodates a wide range of stranded wire sizes for versatile installation applications
  • Aluminum Construction: Lightweight yet durable material provides excellent electrical conductivity and long-term reliability
  • Electro Tin-Plated Finish: Enhanced surface treatment improves conductivity and provides superior corrosion protection
  • Dual Split-Bolt Design: Mechanical connector configuration ensures secure, permanent electrical connections
  • UL E9809 Listed: Meets rigorous safety and performance standards for professional electrical applications
  • Mechanical Connection Type: Provides reliable wire-to-wire connections without requiring specialized tools or heat application

Technical Specifications

  • Country Of Origin: Mexico (MX)
  • Department: Electrical
  • Material: Aluminum
  • 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

  • Electrical Panel Connections
  • Service Entrance Applications
  • Industrial Wiring Systems
  • Commercial Electrical Installations
  • Utility Distribution Networks
  • Grounding System Connections
  • Wire Splicing Applications

Why Choose Blackburn Quality?

Blackburn split-bolt connectors deliver proven reliability with UL E9809 listing and professional-grade aluminum construction. The electro tin-plated finish ensures long-lasting performance and superior electrical conductivity for demanding electrical connection applications.

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:
Aluminum

Blackburn APS21 – Frequently Asked Questions

1) What wire sizes does the Blackburn APS21 split-bolt connector take?
The Blackburn APS21 is rated for 2/0 through 4 AWG stranded conductors. It's a dual split-bolt, so it makes a run-to-tap or wire-to-wire mechanical connection anywhere in that range without crimping or heat.
2) Is the Blackburn APS21 UL listed for a service entrance splice?
It carries UL file E9809, and service entrance connections are among the applications called out for it, along with electrical panels, industrial and commercial wiring, utility distribution, and grounding splices. For an inspector, the E9809 listing is the reference to cite.
3) Do I need a crimper or torch to install the APS21?
No. It's a mechanical connector, tightened with a wrench on the split bolt, so there is no crimp die or heat involved. That makes it the practical choice for field splices and repairs where you don't want to haul a hydraulic crimper or run a torch inside an occupied building.
4) Does the tin plating on this connector matter outdoors or in a wet vault?
Yes. The electro tin-plated surface is there for corrosion protection and conductivity on the aluminum body, which is what you want in damp pull boxes, utility vaults, and service entrance gear. Bare aluminum in those spots oxidizes at the contact face; tin plating slows that down. Tape or insulate the finished splice per your local requirements.
5) Will the APS21 work for a grounding electrode conductor splice?
Grounding system connections are listed among its applications, and it's UL listed under file E9809 for 2/0-4 STR conductors. Confirm your grounding conductor falls inside 2/0 to 4 AWG stranded and that your jurisdiction accepts a split-bolt for the specific grounding connection you're making, since some grounding electrode terminations require an irreversible compression connection instead.
6) What is the Blackburn part number and how is it sold?
Model APS21 is the manufacturer part number, and it's sold each, not by the box or the card. If you're standardizing a truck stock or a bid sheet on 2/0-4 STR splices, order the quantity you need by the piece.
7) Where is the Blackburn APS21 made?
Mexico. That's the stated country of origin, which matters if you're filling a government or institutional order with domestic-content or trade-documentation requirements on electrical materials.
How fast can I get the Blackburn APS21 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 APS21 come with a warranty?
Absolutely. The Blackburn APS21 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 APS21?
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 APS21 from ZenSupply?
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