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AL COMP Splice 400 kcmil TinPlate
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:
- 7-9/32 inch long
Blackburn AC 400 TN – Frequently Asked Questions
1) What size conductor does the Blackburn AC 400 TN splice take?
The AC 400 TN is sized for 400 kcmil aluminum conductor, one cable in each end. It joins two conductors, so it is a straight inline splice rather than a tap or a multi-port connector.
2) Can I use this aluminum splice on copper cable, or for an aluminum-to-copper transition?
It is an aluminum-bodied compression splice built for aluminum 400 kcmil conductor. Nothing in its data rates it for copper or for a dissimilar-metal aluminum-to-copper joint, so don't use it for a transition splice. For copper-to-aluminum you want a connector specifically marked AL/CU or a bimetallic transition splice.
3) Do I need a crimp tool for the Blackburn AC 400 TN, or can it be tightened with a wrench?
Compression only. The AC 400 TN has no set screws, so it is installed with a hydraulic compression tool and the die matched to the connector and conductor size. If your crew only carries wrenches, you want a mechanical set-screw splice instead.
4) Is this splice insulated, or do I have to tape or heat-shrink it after crimping?
It ships bare, with no insulation on the barrel, so the joint has to be insulated in the field. Tape, heat-shrink, or a cold-shrink sleeve over the finished crimp, sized for the 7-9/32 inch barrel length plus the cable jacket overlap.
5) Will a 400 kcmil compression splice fit inside my pullbox or conduit body?
Plan on 7-9/32 inches of straight barrel length, plus whatever you add for insulating sleeve overlap and cable bending radius on each side. That length is the number to check against the box dimension before you cut the cable, because a compression splice can't be shortened.
6) Does the Blackburn AC 400 TN meet a recognized connector standard for submittals?
It is built to ANSI C119.4, the standard covering electric connectors for use between aluminum or aluminum-to-copper conductors. That is the reference to put on the submittal for an inspector or engineer asking what the splice is qualified against.
7) Why is this splice tin-plated? Does that matter for direct burial or wet locations?
The tin plating on the aluminum body slows oxidation at the contact surfaces and on the outside of the barrel, which matters in damp vaults, handholes, and underground runs where a bare aluminum body corrodes faster. It does not by itself make the joint waterproof, the insulating and sealing system you apply over the crimp does that.
8) Is this splice sold each or in a bag of ten?
Each. One AC 400 TN splice per selling unit, so count one per conductor being joined, three for a three-phase run, four if you are splicing a neutral as well.
9) Is the Blackburn AC 400 TN made in the USA for a Buy American job?
Country of origin is the United States, which is the line a government, school, or transit buyer needs for domestic-preference documentation.
How fast can I get the Blackburn AC 400 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 400 TN come with a warranty?
Absolutely. The Blackburn AC 400 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 400 TN?
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