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AL 9-1/2IN TENSION COMP SPLICE 477
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:
- 9-1/2 inch
- Installation Category:
- None
Blackburn ACJ477 – Frequently Asked Questions
1) What conductor size is the Blackburn ACJ477 compression splice made for?
The ACJ477 is sized for 477 aluminum conductor, which is what the 477 in the part number refers to. It is a full tension splice, meaning it is rated to carry the mechanical load of the conductor run, not just make the electrical connection. Order it by the exact catalog number ACJ477 to be sure you get the 477 size rather than an adjacent one.
2) Is the ACJ477 a bolted or a compression connector?
Compression. The ACJ477 is installed with a hydraulic compression tool and the correct die set, not with bolts or set screws. Once crimped it is a permanent joint, so there is nothing to re-torque later and nothing to inspect for loosening, but it also cannot be taken apart if you need to re-pull the line.
3) Does the Blackburn ACJ477 splice meet ANSI C119.4?
Yes, the ACJ477 is built to ANSI C119.4, the standard covering connectors for use between aluminum and copper conductors in underground and aboveground distribution. If your utility or engineer's spec calls out C119.4 for splices, this one answers it.
4) Can I use the Blackburn ACJ477 on copper conductor?
No. The ACJ477 is an aluminum tension splice built for aluminum conductor at the 477 size. For a copper run, or for an aluminum-to-copper transition, you need a connector specifically catalogued for that combination, not this one.
5) How long is the Blackburn ACJ477 splice body?
9-1/2 inches. That length matters for two reasons on a line job: you need that much clear conductor to strip and seat both ends, and you need the room in the span or on the framing for a rigid 9-1/2 inch barrel once it is crimped.
6) Is the ACJ477 splice insulated, or do I need to cover it after crimping?
It is a bare connector with no insulation on the body. If the application calls for a covered joint, you supply the insulation yourself, typically heat shrink or a cold shrink tube sized over the 9-1/2 inch barrel. Plan that material into the order.
7) How many conductors does one ACJ477 splice join?
Two. One splice joins a single pair of conductor ends, so count one ACJ477 per splice point. They sell individually, each, not in bags or boxes, so the quantity you order is the number of joints you are making.
How fast can I get the Blackburn ACJ477 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 ACJ477 come with a warranty?
Absolutely. The Blackburn ACJ477 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 ACJ477?
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selection,
installation tips, and troubleshooting. Contact Us
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