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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 Four Hole
- Selling Unit Of Measure:
- each
- Surface Finishing:
- Bare
- Type2:
- Wire connectors
- Wire Size:
- 336.4 to 350 kcmil266.8(26/7) ACSR AWG
- Department:
- Electrical
- Product Subgroup:
- Connectors
- Product Size:
- 7-5/8 X 3 inches wide
- Installation Category:
- Bolt Size 1/2 in
Blackburn SAM 400-4 N – Frequently Asked Questions
1) What wire size does the Blackburn SAM 400-4 N compression lug take?
The SAM 400-4 N is sized for 336.4 to 350 kcmil conductor, including 266.8 (26/7) ACSR. It is an aluminum-bodied compression lug, so it is crimped onto the conductor rather than bolted or set-screwed. Anything smaller than that range will not form a proper crimp in the barrel, and you would need a lug rated for the actual conductor size instead.
2) Does the SAM 400-4 N lug come insulated or with a cover?
No insulation. The SAM 400-4 N is a bare aluminum lug with a bare surface finish, so any insulating or covering of the termination has to be handled separately with tape, boot, or sleeve per your job spec.
3) Can I use the SAM 400-4 N on copper conductor?
It is an aluminum lug intended for the aluminum and ACSR conductor range it lists, 336.4 to 350 kcmil and 266.8 (26/7) ACSR. For copper cable, use a copper compression lug matched to the copper conductor size rather than this one.
4) How do I make sure I am ordering the right Blackburn lug for my substation pad?
Order by the model, SAM 400-4 N. Match three things: conductor in the 336.4 to 350 kcmil range (or 266.8 ACSR), a NEMA four hole pad drilled for 1/2 inch bolts, and a pad landing area that accepts a 7-5/8 by 3 inch tongue. If any one of those differs, it is the wrong lug.
5) Is the Blackburn SAM 400-4 N sold individually or in a bag?
Sold each. Order one per termination, and count your bolted pads, since a four hole pad also needs four 1/2 inch bolts, nuts and washers which are not part of the lug.
6) Is this lug made in the USA for a Buy American job?
Country of origin is the United States, which matters on federally funded and public utility work where domestic sourcing is a condition of the contract.
How fast can I get the Blackburn SAM 400-4 N 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 SAM 400-4 N come with a warranty?
Absolutely. The Blackburn SAM 400-4 N 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 SAM 400-4 N?
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product
selection,
installation tips, and troubleshooting. Contact Us
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