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AL 2HOLE NEMA STR LUG 4/0 24IN W/HS
Manufacturer Resources
Product Specs
- Connection Type:
- Compression
- Country Of Origin:
- United States (US)
- Insulation Material:
- None
- Product Group:
- Wire & Cable Management
- Product Type:
- Compression Lug Two Hole
- Selling Unit Of Measure:
- each
- Standards:
- ANSI C119.4
- Type2:
- Wire connectors
- Wire Size:
- 397.5 to 400 kcmil350 kcmil
- Department:
- Electrical
- Product Subgroup:
- Connectors
- Product Size:
- 24 inches long
Blackburn AL 400 N 24 HS – Frequently Asked Questions
1) What conductor size does the Blackburn AL 400 N 24 HS lug take?
The AL 400 N 24 HS is sized for 397.5 to 400 kcmil and 350 kcmil conductor. The product name also calls out 4/0 usage. It is a compression lug, so it is crimped onto the conductor with the matching die rather than tightened on a set screw.
2) Is this a one-hole or two-hole lug, and what pad pattern does it use?
Two-hole, with a straight NEMA pad. That means the bolt hole spacing follows the NEMA pattern for the conductor size, so it lands on standard NEMA-drilled bus bar, panel pads and switchgear terminals. Two-hole pads are what most specs call for on larger feeders because the second bolt keeps the lug from rotating under torque or fault current.
3) What does the 24 IN W/HS mean on this Blackburn lug?
It means the lug comes with 24 inches of heat shrink supplied with it. The lug body itself has no insulation, so the shrink sleeve is what you use to insulate and seal the barrel and the exposed conductor after crimping. Twenty-four inches is long enough to cover the barrel plus a good run back onto the cable jacket, and you can cut it to the length the termination needs.
4) Does this lug meet the ANSI standard our spec calls out for compression connectors?
It is built to ANSI C119.4, the standard covering connectors for aluminum and copper conductors. If your drawing calls for C119.4 compression terminations, this lug satisfies that line item. It is also made in the United States, which matters on Buy American and federally funded work.
5) Can I use an aluminum compression lug on copper conductor?
The AL 400 N 24 HS is an aluminum-bodied compression lug. Aluminum-bodied compression connectors in this family are commonly dual rated for aluminum or copper, but confirm the AL/CU marking stamped on the barrel before you crimp copper into it. If your job is copper-only and the spec calls for a copper lug, order a tinned copper two-hole compression lug in 350 to 400 kcmil instead.
6) Do I need a crimping tool for this, or can it be installed with a wrench?
A crimp tool is required. This is a compression lug, not a mechanical set-screw lug, so it has to be installed with a hydraulic or battery compression tool and the die the barrel is stamped for. If you do not have a compression tool on the truck, a mechanical two-hole aluminum lug in the same conductor range is the connector to use instead.
7) Am I buying one lug or a pack?
Sold each. One AL 400 N 24 HS lug with its heat shrink per unit, so for a three-phase-plus-neutral feeder termination you would order four, plus whatever you need for the other end.
8) What is the exact part number to order this Blackburn lug by?
Blackburn part number AL 400 N 24 HS. That designation reads as the aluminum 400 kcmil NEMA lug supplied with 24 inches of heat shrink.
How fast can I get the Blackburn AL 400 N 24 HS delivered?
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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 AL 400 N 24 HS come with a warranty?
Absolutely. The Blackburn AL 400 N 24 HS is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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