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CU TP SPLICE LONG BRL 750STR BLK
Manufacturer Resources
Product Specs
- Country Of Origin:
- Mexico (MX)
- Insulation Material:
- None
- Product Group:
- Wire & Cable Management
- Product Type:
- Splice Connector
- 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:
- Connectors
- Product Color:
- Black
- Product Material:
- Copper
Blackburn CU750 – Frequently Asked Questions
1) What conductor size does the Blackburn CU750 splice take?
The CU750 is sized for 750 kcmil stranded copper conductor, one size only, per the part designation CU750 / 750STR. It is a compression splice, so both conductor ends are crimped into the barrel with a die-and-tool setup matched to the connector. If your run is a different kcmil size, you need the matching Blackburn CU-series barrel for that conductor, not this one.
2) Is the CU750 splice rated for medium voltage cable at 35 kV?
Yes. The Blackburn CU750 carries a 35 kV voltage rating, which covers medium voltage feeder and URD splicing work when it is installed inside a properly rebuilt splice insulation system. The connector itself ships bare, so the insulation and shielding rebuild is on you.
3) Does this Blackburn splice come insulated, or do I have to tape or heat-shrink it?
It comes bare. Insulation material is listed as none, so the barrel is an uninsulated copper compression splice. You supply the rebuild, tape, heat shrink, or a cold shrink splice kit appropriate to the cable's voltage class.
4) Can I use the CU750 on aluminum conductor?
No. This is a copper-only splice, tin plated. For aluminum or for an aluminum-to-copper transition you need a connector rated AL9CU or an aluminum-bodied splice; putting aluminum in a copper-only barrel is not a listed use.
5) Why does the CU750 have a long barrel instead of a standard one?
The long barrel gives more crimp length, which means additional compressions per conductor and more contact area on a heavy 750 kcmil conductor. Electricians and utility crews use long barrel splices where pull-out strength and low resistance on a large feeder matter. A short barrel version of the same conductor size will physically make up the joint but with fewer crimps.
6) Is the tin plating on this splice necessary, or can I use bare copper?
The tin plating on the CU750 is there to slow oxidation on the copper barrel, which keeps the contact resistance stable in damp manholes, handholes, and direct-buried splice locations. On a 35 kV joint that is not a cosmetic detail, it is part of why the connector holds up over time.
7) Does the CU750 ship in a pack, or is it sold as a single connector?
Sold each. One splice per unit, so order one per joint plus spares, since a miscrimped compression barrel gets cut out rather than reused.
8) What is the exact part number and country of origin for this Blackburn 750 copper splice?
Manufacturer part number CU750 from Blackburn, made in Mexico. Distributors ordering to a utility spec should quote it as CU750, the black long-barrel 750 kcmil stranded copper compression splice.
How fast can I get the Blackburn CU750 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 CU750 come with a warranty?
Absolutely. The Blackburn CU750 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 CU750?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
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