Burndy Aluminum Mechanical Spl...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$19.37

Burndy Aluminum Mechanical Splice Connector, Tin-Plated

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Model: AMS-4/0

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

$19.37
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Burndy Aluminum Mechanical Splice Connector, Tin-Plated

The Burndy Aluminum Mechanical Splice Connector is a dual-screw mechanical splice engineered for aluminum and copper conductors in both solid and stranded configurations. Tin plating provides corrosion resistance for long-term connection integrity, while the dual-screw design delivers a rated installation torque for secure, reliable mechanical connections. This UL Listed, CSA certified splice meets UL467 industry standards and is offered in straight splice and reducer configurations for flexible conductor-joining applications on the job.

Key Features

  • Conductor Compatibility: Accommodates aluminum and copper conductors in solid and stranded configurations for versatile application compatibility.
  • Dual-Screw Design: Two screws tightened to the rated installation torque ensure secure mechanical connections and reliable electrical continuity.
  • Tin Plating: Corrosion-resistant tin plating extends service life and maintains connection integrity in various environmental conditions.
  • Splice/Reducer Function: Available as a straight splice and as a reducer connector for flexible conductor joining applications.
  • Compact Design: Space-efficient body with a hex-drive screw profile for installation in electrical enclosures and junction boxes.
  • Al/Cu Rated: Compatible with both aluminum and copper conductors for versatile installation options across electrical systems.

Certifications & Compliance

  • UL Listed
  • Meets UL467 Industry Standards
  • CSA Certified

Technical Specifications

  • Csa Certified: Y
  • Type Of Plating: Tin
  • Culus: N
  • Ul Listed: Y
  • Plated Yes Or No: Y
  • Ul Recognized: N
  • Rated For Direct Burial: N
  • Product Group: Wire Connectors

Typical Applications

  • Commercial Electrical Systems
  • Industrial Power Distribution
  • Residential Service Panels
  • Electrical Maintenance & Repair
  • Conductor Splicing Projects
  • Panel Upgrades & Modifications

Why Burndy?

Burndy mechanical cable splices provide dependable electrical connections backed by UL Listed certification and CSA approval. The tin-plated, dual-screw construction and precision manufacturing to UL467 standards ensure long-term reliability in professional electrical installations, making this splice connector an essential component for electrical contractors and maintenance professionals working with aluminum and copper conductors.

Variant Specifications

ConfigurationModelSKUMPN
AMS0/AMS2/AMS40/AMS250StandardAMS-4/0AMS-4/0
AMS500AMS500AMS-500AMS500

Manufacturer Resources

Product Specs

Industry Standards:
UL467
Connector Type:
Splice,Reducer
Department:
Electrical
Product Group:
Wire Connectors & Terminals
Product Type:
Mechanical Splice Connector
Product Material:
Aluminum
Product Subgroup:
Splice Kits

Burndy AMS-4/0 – Frequently Asked Questions

1) Can I use a Burndy AMS mechanical splice on aluminum conductors, or is it copper only?
Both. The Burndy AMS splice is an Al/Cu rated mechanical connector, so it takes aluminum or copper conductors, solid or stranded. That also means it will join aluminum to copper in the same splice, which is the usual reason electricians reach for a dual-rated mechanical connector instead of a compression barrel.
2) What is the difference between the AMS-4/0 and the AMS-500 Burndy splice?
They are two different conductor-range bodies in the same AMS family. The AMS-4/0 covers the smaller end of the range (the AMS0/AMS2/AMS40/AMS250 grouping), and the AMS-500 is the larger body for heavier cable. Pick by the size of the conductors you are joining, not by feature set: construction, plating, and listing are the same on both.
3) Can this Burndy connector splice two different wire sizes together, like a 250 down to a smaller conductor?
Yes, the AMS is offered as a reducer as well as a straight splice. The reducer version has two different conductor ports so you can land unequal sizes in one connector, which is what you need on a panel upgrade where the new feeder is larger than the existing run. The straight splice takes matching sizes in each end.
4) Can I direct bury a Burndy AMS splice or put it in a ground rod pit?
No. The AMS is not rated for direct burial. For an underground or grounding-electrode connection in earth or concrete, you need a connector specifically listed for direct burial. Use the AMS inside enclosures, junction boxes, and panels instead.
5) Do I need a special tool or crimper to install this splice?
No crimp tool needed. The AMS is a mechanical connector with two screws and a hex-drive screw profile, so a hex key or hex driver installs it. Tighten both screws to the connector's rated installation torque. That makes it a practical choice for field repairs and retrofits where you cannot get a hydraulic crimper into the box.
6) Is a mechanical splice like the Burndy AMS the right choice, or should I be using a compression connector?
A mechanical splice like the AMS is the right call when you need the joint to be reinstallable, when you are working in a live-adjacent panel with no room for a crimp head, or when you are joining aluminum to copper and want to be able to re-torque it later. Compression makes more sense on permanent, high-cycle feeder work where the connection will never be opened. For maintenance, panel modifications, and repair splicing, the two-screw mechanical body is faster and needs no press.
7) Will tin plating hold up in a damp mechanical room or outdoor enclosure?
The AMS body is aluminum with tin plating for corrosion resistance, which is the standard finish for holding a connection in humid or corrosive interior and enclosed outdoor environments. What it is not approved for is contact with earth, since the connector carries no direct burial rating.
How fast can I get the Burndy AMS-4/0 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 Burndy AMS-4/0 come with a warranty?
Absolutely. The Burndy AMS-4/0 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 Burndy AMS-4/0?
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 Burndy AMS-4/0 from ZenSupply?
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