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ALUM COMP REDUCING SPLICE
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 Service Entrance Insulated
- 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:
- 5.687 inch long, Outside Diameter 1.316 inch.
Blackburn SAC 400 R 350 TN – Frequently Asked Questions
1) What is the Blackburn SAC 400 R 350 TN splice used for?
It's an aluminum compression reducing splice for joining two conductors of different sizes in one inline connection. It takes a compression tool and die, not a bolt or set screw, and it joins two conductors per the connector's two-conductor configuration. Body is tin-plated aluminum.
2) Is the SAC 400 R 350 TN splice insulated, or do I have to tape or sleeve it myself?
There's no insulation on it. The insulation material is listed as None, so it's a bare tin-plated aluminum barrel and you have to insulate the finished joint yourself with tape, a cold shrink sleeve, or heat shrink rated for the application.
3) Will the Blackburn SAC 400 R 350 TN fit inside my splice box or conduit body?
Plan around a barrel 5.687 inches long with a 1.316 inch outside diameter. That length is the number that usually causes trouble in a shallow pull box or a small conduit body, since you also need bending room on both conductors and space for the insulating sleeve over the joint.
4) Can I use this aluminum splice on copper conductors too?
The barrel is tin-plated aluminum, and the tin plating is what makes an aluminum-bodied compression connector suitable for use on either aluminum or copper conductors. Match the die and the conductor sizes the connector is built for, and use an oxide-inhibiting compound on aluminum runs.
5) Does the Blackburn SAC 400 R 350 TN meet a recognized connector standard for a service entrance splice?
It's built to ANSI C119.4, the standard covering connectors for use between aluminum-to-aluminum and aluminum-to-copper bare overhead and underground conductors. That's the reference an inspector or a spec writer looks for on a compression splice.
6) Do compression splices sold individually come with dies, or do I order those separately?
The splice is sold each, one connector per unit. No tooling comes with it, so the crimper and the correct die set for the connector are a separate purchase. Order one splice per conductor joint, so a three-phase run plus neutral takes four.
7) Why use a compression reducing splice instead of a mechanical set-screw connector?
A compression splice is a permanent, tool-applied joint; once it's crimped it can't loosen or be re-torqued, which is why it's used on direct-buried and service entrance work where the joint won't be inspected again. A mechanical set-screw connector is the choice when you want it removable or you have no crimper on site. This one is compression, so plan on the tool.
8) Where is the Blackburn SAC 400 R 350 TN splice made?
Made in the United States, which matters on federally funded and Buy American work where domestic origin has to be documented for electrical materials.
How fast can I get the Blackburn SAC 400 R 350 TN delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 SAC 400 R 350 TN come with a warranty?
Absolutely. The Blackburn SAC 400 R 350 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 SAC 400 R 350 TN?
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