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ALUMINUM LUG
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 One Hole
- Selling Unit Of Measure:
- each
- Standards:
- ANSI C119.4
- Surface Finishing:
- Tin Plated
- Type2:
- Wire connectors
- Wire Size:
- 400 kcmil397.5 kcmil
- Department:
- Electrical
- Product Subgroup:
- Connectors
- Product Size:
- Length 4-7/8 inches
Blackburn AL 400-38 TN – Frequently Asked Questions
1) What wire size does the Blackburn AL 400-38 TN lug take?
The AL 400-38 TN compression lug is sized for 400 kcmil conductor, and also covers 397.5 kcmil ACSR/AAC. It is a one-hole compression lug, so the conductor is crimped in the barrel rather than clamped by a setscrew.
2) Can I use an aluminum lug like the AL 400-38 TN on copper conductor?
Yes. The AL 400-38 TN is an aluminum body lug that is tin plated, which is what makes it suitable for either aluminum or copper conductor (AL9CU style dual rated construction) and keeps the aluminum from galvanic trouble against a copper or plated bus pad. It is tested to ANSI C119.4, the standard for connectors used on aluminum and copper conductors.
3) Is this lug crimped or is it a mechanical setscrew connector?
Crimp only. The AL 400-38 TN is a compression lug, so it needs a hydraulic crimper and the correct die for the barrel. If you want a termination you can install with a hex key and re-torque later, you need a mechanical setscrew lug instead, not this one.
4) Does a one-hole lug like this meet spec, or does my drawing call for two-hole?
The AL 400-38 TN is a one-hole lug, which suits single bolt pads on breakers, switches and transformer terminals. Many utility and institutional specs require two-hole terminations on flat bus to prevent rotation. If the drawing says two-hole, this part will not satisfy it and you need a two-hole compression lug in the same 400 kcmil range.
5) Does the AL 400-38 TN lug come insulated, or do I need to cover it after crimping?
It is bare. Insulation material is listed as none, so if the termination needs covering you add heat shrink or a boot separately. That is normal for a bus or panel pad termination where the lug lands inside enclosed gear.
6) How long is the Blackburn AL 400-38 TN lug? I need to know if it clears inside my gutter.
Overall length is 4-7/8 inches. Lay that out from the center of the bolt pad back along the barrel when you are checking bending space and clearance in a gutter or panel wireway, since a 400 kcmil conductor needs its own bend radius behind the lug.
7) Is this Blackburn lug made in the USA for a Buy American job?
Country of origin on the AL 400-38 TN is the United States. That is the detail government, education and healthcare procurement usually needs on the submittal, alongside the ANSI C119.4 reference.
8) Is the AL 400-38 TN sold individually or in a bag of ten?
Sold each. Count your terminations, phases plus neutral plus any parallel sets, and order that quantity, since one lug covers one conductor end.
How fast can I get the Blackburn AL 400-38 TN delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 400-38 TN come with a warranty?
Absolutely. The Blackburn AL 400-38 TN 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 AL 400-38 TN?
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