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CU TP SPLICE LONG BRL 250STR YEL
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:
- Yellow
- Product Material:
- Copper
Blackburn CU250 – Frequently Asked Questions
1) What conductor size does the Blackburn CU250 splice take?
The CU250 is sized for 250 kcmil stranded copper conductor, which is what the 250STR in the part description refers to. It's a compression splice, so both conductor ends go into the barrel and get crimped with a die matched to the connector. One splice joins one pair of conductors, and it is sold each.
2) Is the Blackburn CU250 splice rated for medium voltage cable?
It carries a 35 kV rating, so it can be used inside medium voltage splice kits as well as on 600 V power conductors. It is UL listed under file E9809.
3) What does the yellow color code on the Blackburn CU250 splice mean?
Yellow is the color code on the CU250 barrel, and on compression connectors the color identifies the die/conductor size group so an inspector or the next electrician can confirm the right crimp die was used. Match the yellow die index on your compression tool to the connector.
4) Why choose a long barrel splice instead of a standard barrel one?
A long barrel splice gives room for two crimps per conductor end rather than one, which raises pull-out strength and lowers resistance across the joint. That is the reason to specify the CU250 over a short-barrel connector on feeders, service conductors, or anywhere the splice sees mechanical strain. If you are only tapping a conductor rather than joining two ends, a tap connector or H-tap is the right part instead.
5) What do I order alongside the Blackburn CU250 for a complete splice?
The CU250 is just the connector, one per splice, sold each. You still need a hydraulic or battery compression tool with the correct die, insulation for the joint (tape, heat shrink, or a cold shrink kit appropriate to the system voltage), and cable prep tools. Nothing is bundled with the connector itself.
6) Is the Blackburn CU250 a UL listed connector for inspection purposes?
Yes, it is listed under UL file E9809, which is what an AHJ will look for on a splice in a feeder or service run. The manufacturer part number is CU250 and it is made in Mexico.
7) Does the tin plating on the Blackburn CU250 matter for outdoor or wet locations?
Tin plating over the copper barrel is there to slow oxidation at the contact surfaces and in damp or corrosive environments, such as underground vaults, pull boxes, and coastal installs. Fill the barrel with an oxide inhibitor if your spec calls for it and seal the splice per the cable system requirements.
How fast can I get the Blackburn CU250 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 CU250 come with a warranty?
Absolutely. The Blackburn CU250 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 CU250?
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selection,
installation tips, and troubleshooting. Contact Us
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