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Manufacturer Resources
Product Specs
- Country Of Origin:
- Mexico (MX)
- Product Group:
- Wire Termination
- Product Type:
- Aluminum One-Hole Lug
- Selling Unit Of Measure:
- each
- Standards:
- UL E9809
- Stud Size:
- 5/8 in
- Sub Brand Label:
- Blackburn
- Type2:
- Cable or wire lug
- Voltage Rating:
- 35 kV
- Department:
- Electrical
- Product Subgroup:
- Lugs
- Product Color:
- Pink
- Product Material:
- Aluminum
Blackburn ATL500-58 – Frequently Asked Questions
1) What wire size does the Blackburn ATL500-58 compression lug take?
The ATL500-58 is sized for 500 kcmil conductor, which is what the 500 in the catalog number refers to. It is a compression (crimp) lug, not a mechanical set screw connector, so the conductor is die-crimped into the barrel with the matching tool and die. The pink color code on the barrel is the die/color identifier for that crimp.
2) Will the Blackburn ATL500-58 lug bolt to a 5/8 inch stud or bus bolt?
Yes. The tongue has a single bolt hole sized for 5/8 inch stud hardware, so it lands directly on a 5/8 inch bus bolt, breaker pad stud, or transformer terminal. One hole only, so it will not work where a two-hole NEMA pattern is required for anti-rotation.
3) Is the Blackburn ATL500-58 rated for medium voltage terminations?
Yes, it carries a 35 kV voltage rating, which covers 5 kV, 15 kV, 25 kV and 35 kV shielded cable terminations as well as any low voltage service or switchgear landing. It is UL listed under file E9809.
4) Can I use this aluminum compression lug on copper conductor?
The ATL500-58 is an aluminum-bodied compression lug. Blackburn aluminum compression lugs in this family are listed for use on aluminum or copper conductor when the barrel is marked AL9CU, so check the barrel marking on the part in hand before crimping it onto copper. The body material itself is aluminum.
5) Why is the barrel on this 500 kcmil lug pink?
Pink is the crimp color code on the ATL500-58. The colored band tells the installer and the inspector which die set matches the barrel, so the crew can confirm on the finished termination that the right die was used. Match the die color to the barrel, not to the conductor size stamped on the cable.
6) Should I use a compression lug like this or a mechanical set screw lug?
A compression lug such as the ATL500-58 is crimped permanently onto the 500 kcmil conductor with a hydraulic tool and the matching pink die, which gives a sealed, vibration-proof joint and no torque to re-check later. A mechanical set screw lug installs with a hex key and no special tooling and can be removed and reused, which suits service work and temporary connections. If you do not own or rent the crimper and die, go mechanical; for switchgear, medium voltage terminations, and anywhere periodic torque checks are impractical, use the compression lug.
7) Does the ATL500-58 come in a pack or is it sold individually?
It is sold each, one lug per unit, so order the exact count of terminations you have. On a three-phase plus neutral landing at both ends you are buying eight.
8) What is the manufacturer part number and country of origin on this Blackburn lug?
Blackburn part number ATL500-58, manufactured in Mexico. That is the number to quote for a straight reorder or to match what is already installed on the gear.
How fast can I get the Blackburn ATL500-58 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 ATL500-58 come with a warranty?
Absolutely. The Blackburn ATL500-58 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 ATL500-58?
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installation tips, and troubleshooting. Contact Us
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