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CU TP SPLICE LONG BRL 400 BLU
Manufacturer Resources
Product Specs
- Country Of Origin:
- Mexico (MX)
- Product Group:
- Wire & Cable Management
- Product Type:
- Long Barrel Copper Splice
- Selling Unit Of Measure:
- each
- Standards:
- UL E9809
- Sub Brand Label:
- Blackburn
- Surface Finishing:
- Tin Plated
- Type2:
- Wire or cable compression splice
- Voltage Rating:
- 35 kV
- Department:
- Electrical
- Product Subgroup:
- Splices
- Product Color:
- Blue
- Product Material:
- Copper
Blackburn CU400 – Frequently Asked Questions
1) What conductor size does the Blackburn CU400 splice take, and how do I confirm I have the right one?
The CU400 is sized for 400 kcmil copper conductor, which is what the blue color code on the barrel identifies. Blackburn color-codes compression connectors by conductor size, so matching the blue CU400 to 400 kcmil cable is the check to make on the reel tag before you crimp. It's a copper body, tin plated, and sold each.
2) Can I use the Blackburn CU400 splice on medium voltage feeders?
Yes. The CU400 carries a 35 kV voltage rating, so it is suitable for medium voltage cable splicing as well as 600 V work. It is UL recognized under file E9809.
3) Is the CU400 a compression splice or a set screw connector?
It's a compression (crimp) splice, not a mechanical set screw type. That means you need a hydraulic or battery crimp tool with the correct die for the barrel, and the joint is permanent once compressed. If you want a connector you can install with a hex key and re-tension later, a set screw splice is the different product to look for.
4) Can I splice aluminum cable to copper with the Blackburn CU400?
No. The CU400 is a copper-only splice. For an aluminum-to-copper or aluminum-to-aluminum joint you need a connector rated AL9CU or an aluminum-bodied compression splice in the matching conductor size.
5) What does the long barrel on the Blackburn CU400 actually get me?
A long barrel gives you room for two crimps per side instead of one, which is what medium voltage and larger feeder splices normally call for. The CU400 is a long barrel copper splice, so plan your die and crimp count for the full barrel length rather than a single center compression.
6) Will a tin plated copper splice hold up in a damp vault or underground pull box?
The tin plating over the copper barrel is there to slow oxidation, which is the reason these are specified for vaults, manholes and direct-buried splice work rather than a bare copper barrel. For a 35 kV application you still build the insulating and jacketing layers over the connector per the cable system you're splicing.
7) How is the Blackburn CU400 packaged for ordering, and what's the part number?
Order it as Blackburn CU400, sold as each rather than in a bag or box quantity, so a splice count of 12 is 12 line units. Country of origin is Mexico.
How fast can I get the Blackburn CU400 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 CU400 come with a warranty?
Absolutely. The Blackburn CU400 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 CU400?
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selection,
installation tips, and troubleshooting. Contact Us
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