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Manufacturer Resources
Product Specs
- Cable Size:
- 4 AWG
- Country Of Origin:
- Mexico (MX)
- Product Group:
- Wire Termination
- Product Type:
- Standard Barrel
- Selling Unit Of Measure:
- each
- Standards:
- UL E9809
- Stud Size:
- 5/16 in
- Sub Brand Label:
- Blackburn
- Type2:
- Cable or wire lug
- Department:
- Electrical
- Product Subgroup:
- Lugs
- Product Color:
- Grey
- Product Material:
- Copper
Blackburn CTL4-516 – Frequently Asked Questions
1) What wire size does the Blackburn CTL4-516 lug take?
The CTL4-516 is a one-hole compression lug sized for 4 AWG copper conductor. One conductor per barrel, and it is a copper lug, so use it on copper cable, not aluminum.
2) Can I use the CTL4-516 on aluminum conductor?
No. This is a copper-bodied lug specified for 4 AWG copper. Aluminum conductor needs an aluminum-bodied, dual-rated (AL9CU) compression lug instead.
3) Is the CTL4-516 a mechanical set-screw lug or a crimp lug?
It is a compression (crimp) terminal, not a set-screw mechanical lug. You need a hydraulic or battery crimper with the matching die. If you have no crimper on site, a mechanical set-screw lug rated for 4 AWG copper is the alternative.
4) What does the grey color band on this Blackburn lug mean?
Grey is the die color code on the CTL4-516 barrel, identifying which crimp die and die index to use in the compression tool. Match the tool die to the grey code rather than guessing off the conductor size alone.
5) Is this a short barrel or long barrel lug, and does that matter?
The CTL4-516 is a standard short barrel design, meaning a single crimp. Long barrel versions take two crimps and are specified where higher pull-out strength is called for. For ordinary terminations at a panel, breaker, or bus, the short barrel is the usual choice.
6) Do I get one lug or a bag when I order the CTL4-516?
Sold individually, each. Count your terminations, including neutrals and grounds, and order accordingly.
7) Where is the Blackburn CTL4-516 made?
Mexico. Useful if you are filing country-of-origin documentation on a government or institutional order.
How fast can I get the Blackburn CTL4-516 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 CTL4-516 come with a warranty?
Absolutely. The Blackburn CTL4-516 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 CTL4-516?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Blackburn CTL4-516 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.