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Manufacturer Resources
Product Specs
- Connection Type:
- Compression
- Country Of Origin:
- Mexico (MX)
- 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
- Type2:
- Wire or cable compression splice
- Department:
- Electrical
- Product Subgroup:
- Splices
- Product Size:
- 3 inch
- Installation Category:
- None
Blackburn AC4-BB – Frequently Asked Questions
1) Is the Blackburn AC4-BB splice a full tension or partial tension connector?
It is a full tension distribution compression splice for aluminum conductor, meaning it is built to carry the mechanical load of the conductor run rather than just make an electrical joint. That matters on overhead distribution spans where the splice sits in the tensioned conductor instead of in a slack jumper.
2) Does the AC4-BB need a compression tool, or can it be installed with bolts or a wrench?
Compression only. The AC4-BB is a die-type compression splice, so it has to be crimped with a hydraulic or battery compression tool using the correct die for the connector. There is no bolted or set-screw option on it, so if you need a tool-free mechanical joint you want a bolted split-bolt or mechanical splice instead.
3) Does the Blackburn AC4-BB meet a recognized connector standard for utility work?
Yes. It is built to ANSI C119.4, the standard covering electric connectors for use between aluminum or aluminum and copper bare overhead conductors. That is the specification utility and municipal buyers usually call out on distribution splices, so it will satisfy a drawing note referencing C119.4.
4) How many conductors does the Blackburn AC4-BB splice join?
Two. It is a straight, in-line splice sized for two conductor ends, one entering each barrel, so it joins one run to another rather than tapping or branching. For a branch off a through-run you need a tap connector, not this splice.
5) Is the AC4-BB splice insulated, and does it need to be taped or covered after crimping?
The body is bare aluminum with no factory insulation. On an insulated cable application you cover the finished joint yourself, typically with tape, a cold shrink or a heat shrink sleeve rated for the circuit voltage. On bare overhead distribution conductor it is normally left uncovered.
6) Can I use the AC4-BB on copper conductor?
It is specified as an aluminum splice, so keep it on aluminum conductor. For an aluminum to copper transition, use a connector specifically marked AL/CU or a bimetallic splice; putting bare copper into an aluminum-only barrel risks a galvanic joint.
7) How is the Blackburn AC4-BB sold, and what is the part number to order?
Order it as Blackburn AC4-BB, sold each, so quantity equals the number of splices you need. There is a single model on it, no finish or size options to pick.
8) What is the size listed for the Blackburn AC4-BB compression splice?
The catalogued product size is 3 inch, which describes the splice body length rather than a conductor gauge. Match the connector to your conductor size and the die number stamped on the barrel before crimping.
9) Where is the Blackburn AC4-BB splice made?
Manufactured in Mexico. That is the detail government and utility buyers working to domestic-content procurement rules usually need confirmed up front.
How fast can I get the Blackburn AC4-BB 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 AC4-BB come with a warranty?
Absolutely. The Blackburn AC4-BB 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 AC4-BB?
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product
selection,
installation tips, and troubleshooting. Contact Us
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