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Manufacturer Resources
Product Specs
- Cable Size:
- 4/0 AWG
- Country Of Origin:
- Mexico (MX)
- Product Group:
- Wire Termination
- Product Type:
- Standard Barrel
- Selling Unit Of Measure:
- each
- Standards:
- UL E9809
- Stud Size:
- 3/8 in
- Sub Brand Label:
- Blackburn
- Type2:
- Cable or wire lug
- Department:
- Electrical
- Product Subgroup:
- Lugs
- Product Color:
- Purple
- Product Material:
- Copper
Blackburn CTL40-38 – Frequently Asked Questions
1) What wire size does the Blackburn CTL40-38 compression lug take?
The CTL40-38 is sized for 4/0 AWG copper conductor, one hole, short barrel. It is a copper compression lug, so it crimps onto the cable rather than clamping it with a setscrew. If your feeder is 250 kcmil or 2/0, this is the wrong die size for it and you need the lug made for that conductor.
2) Is this a UL listed lug for a commercial panel termination?
The CTL40-38 carries UL file E9809. Inspectors on commercial and institutional work generally want a listed connector at the termination, and that file number is the reference to cite on a submittal.
3) Can I use this copper lug on aluminum conductor?
No. It is a copper-bodied compression lug intended for copper conductor at 4/0 AWG. Aluminum or dual-rated AL9CU terminations call for a lug listed for aluminum, so pick one of those rather than crimping aluminum into this barrel.
4) What does the purple color code on this Blackburn lug mean?
Purple identifies the crimp die and die index for the CTL40-38, matching the color-coded die in a hydraulic or battery compression tool. Set your tool to the purple die group for 4/0 copper and the crimp will meet the listed configuration. The color is a tooling reference, not a phase or insulation marking.
5) Short barrel versus long barrel lug, which one do I need?
The CTL40-38 is a short barrel, which takes a single crimp and is the usual choice where space behind the termination is tight, such as a crowded gutter or panel wireway. A long barrel takes two crimps and is specified where extra pull-out resistance is wanted, typically on vibration-prone or utility work. Same 4/0 conductor either way, just barrel length and crimp count differ.
6) Do I need a crimp tool for this, or can I tighten it with a wrench?
A compression tool is required. The CTL40-38 has a crimp barrel, not a setscrew, so it needs a hydraulic or battery crimper with the purple die for 4/0 copper. If you want a wrench-only termination, look for a mechanical setscrew lug instead of this compression style.
7) How is the CTL40-38 sold, individually or in a bag?
It is sold each, as a single lug, so you order the exact count your terminations need rather than a fixed carton. Order part number CTL40-38 from Blackburn; country of origin is Mexico.
How fast can I get the Blackburn CTL40-38 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 CTL40-38 come with a warranty?
Absolutely. The Blackburn CTL40-38 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 CTL40-38?
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product
selection,
installation tips, and troubleshooting. Contact Us
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