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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:
- Blue
- Product Material:
- Copper
Blackburn CSP400 – Frequently Asked Questions
1) What wire size does the Blackburn CSP400 compression splice take?
The CSP400 is sized for 400 kcmil copper conductor, which is what the 400 in the model designation refers to. It's a short barrel splice, so it joins two 400 kcmil copper runs end to end with one crimped sleeve. Blue is the color code on this die size.
2) Is the Blackburn CSP400 splice rated for medium voltage cable?
It carries a 35 kV voltage rating, so it's suitable for medium voltage splicing up to that class when installed in a properly rated splice kit or reinsulated system. The connector itself ships bare with no insulation, so the insulation system around it is yours to supply.
3) Does the CSP400 splice come pre-insulated or do I need to tape and seal it?
It's an uninsulated connector. Insulation material is listed as none, so you reinsulate after crimping with tape, heat shrink, or the cold shrink/splice kit specified for your cable class.
4) Can I use the Blackburn CSP400 on aluminum conductor?
No. The CSP400 is a copper-only splice, made of copper with a tin plated surface. For aluminum or an aluminum-to-copper transition you need a dual-rated AL9CU compression splice instead.
5) What's the difference between a short barrel splice like the CSP400 and a long barrel splice?
A short barrel takes fewer crimps and occupies less length in the splice, which matters when you're working in a tight handhole, pullbox, or transformer compartment and the reinsulation sleeve has to fit over it. A long barrel gives more crimp area and a longer overall assembly. The CSP400 is the short barrel version for 400 kcmil copper.
6) Do I need a special crimp tool for the CSP400?
Yes, it's a compression splice, not a mechanical setscrew connector, so it requires a hydraulic or battery compression tool with the die matching the barrel's color code. The blue coding on this 400 kcmil copper barrel is what you match your die index against.
7) Why is the Blackburn CSP400 tin plated if it's a copper splice?
The tin plating on the copper barrel resists oxidation on the conductor contact surfaces and in damp or underground pulls, which keeps crimp resistance stable over time. It also lets the same barrel be used against tin plated lugs and terminations without a dissimilar metal concern.
8) How is the Blackburn CSP400 sold, individually or in a box?
It's sold each, so you order one connector per splice point. Plan one per conductor, not one per three-phase set.
How fast can I get the Blackburn CSP400 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 CSP400 come with a warranty?
Absolutely. The Blackburn CSP400 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 CSP400?
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
Why buy the Blackburn CSP400 from ZenSupply?
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