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Manufacturer Resources
Product Specs
- Connection Type:
- Compression
- Country Of Origin:
- United States (US)
- Insulation Material:
- None
- Number Of Conductors:
- 2
- Product Group:
- Wire & Cable Management
- Product Type:
- Compression Splice
- Selling Unit Of Measure:
- each
- Standards:
- ANSI C119.4
- Surface Finishing:
- Tin-Plated
- Type2:
- Wire or cable compression splice
- Department:
- Electrical
- Product Subgroup:
- Splices
- Product Size:
- 5-3/4 inch long
Blackburn AC 300 TN – Frequently Asked Questions
1) What conductor size does the Blackburn AC 300 TN splice take?
The Blackburn AC 300 TN is sized for 300 kcmil aluminum conductor, one cable in each end. It is a two-conductor butt splice, so it joins one run to another rather than tapping a branch off a through-conductor. If your cable is a different kcmil size, you need the matching AC-series barrel, not this one.
2) Can I use this aluminum compression splice on copper cable?
The AC 300 TN barrel is aluminum with a tin-plated finish. Tin plating on an aluminum body is what lets it be used on copper as well as aluminum conductor without the dissimilar-metal problem you get from bare aluminum on copper. Confirm the 300 kcmil size matches on both ends, since the barrel is sized for one conductor size only.
3) Does this Blackburn splice meet the ANSI standard our electrical spec calls out?
It is built to ANSI C119.4, the standard covering connectors for use between aluminum and aluminum or aluminum and copper bare conductors. That is the reference most utility and commercial cable-splice specs cite. Country of origin is the United States.
4) Is this splice insulated, or do I have to cover it after crimping?
No insulation, the barrel ships bare. You cover it yourself after crimping, normally with heat-shrink, a cold-shrink sleeve, or half-lapped tape build-up back to the cable insulation level. Budget the covering into the job, especially for direct-burial or wet-location splices.
5) How much cable length do I need to strip and how long is the barrel?
The AC 300 TN barrel is 5-3/4 inches long overall, so plan on stripping roughly half that on each conductor plus enough slack to bring both ends together in the pull box or handhole. Allow for the covering you install over it as well, since the finished splice will be longer than the barrel itself.
6) Compression splice or a mechanical set-screw connector for a 300 kcmil repair?
A compression barrel like the AC 300 TN needs a hydraulic crimp tool and the correct die, and it gives you a permanent, low-profile joint that will not back off, which is why it is the usual choice for buried, concrete-encased, or vibration-prone runs. A mechanical set-screw splice installs with hand tools and can be taken apart, so it is the better pick when you have no crimper on site or expect to reopen the joint. If you have no press, do not buy this barrel.
7) Can I use this to tap a branch circuit off a 300 kcmil feeder?
No. With two conductor ports it is a straight in-line splice, not a tap. For pulling a branch off a through-running feeder you want an H-tap or a compression tap connector rated for the run and tap sizes, not this butt barrel.
8) How is the AC 300 TN sold, individually or in a bag?
Sold each. One barrel per unit, so order one per splice point and count both ends of every conductor in the run when you build the material list.
How fast can I get the Blackburn AC 300 TN 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 AC 300 TN come with a warranty?
Absolutely. The Blackburn AC 300 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 AC 300 TN?
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selection,
installation tips, and troubleshooting. Contact Us
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