You may also like
CU TP SPLICE SHORT BRL 350STR RED
Manufacturer Resources
Product Specs
- Country Of Origin:
- Mexico (MX)
- Insulation Material:
- None
- Product Group:
- Wire & Cable Management
- Product Type:
- Short 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:
- Red
- Product Material:
- Copper
Blackburn CSP350 – Frequently Asked Questions
1) What conductor size does the Blackburn CSP350 splice take?
The CSP350 is sized for 350 kcmil stranded copper conductor, which is what the 350STR in the description refers to. It joins two like-sized conductors end to end in a single compression barrel. Using it on a smaller or larger conductor will not give you a proper crimp, so match the conductor size exactly.
2) Is the Blackburn CSP350 splice insulated, or do I have to tape or shrink over it?
It is a bare connector. The insulation material is listed as none, so the barrel ships uninsulated and you provide the covering yourself, whether that is tape, heat shrink, or a cold shrink kit rated for the circuit voltage.
3) What voltage can I use a Blackburn CSP350 compression splice on?
It carries a 35 kV voltage rating, so it is suitable for medium voltage cable splicing up to that level as well as ordinary 600 V building power. The rating applies to the connector itself; the insulating system you build over it has to be rated for the same circuit.
4) Can I use the Blackburn CSP350 on aluminum conductor?
No. This is a copper-only compression splice, made of copper and tin plated. For aluminum or for an aluminum-to-copper transition you need a connector specifically marked AL9CU or dual rated. The tin plating here is for corrosion resistance on copper, not a bimetal rating.
5) Is the CSP350 a UL listed splice for inspection?
Yes. The CSP350 is covered under UL file E9809, which is the reference an inspector or a spec writer will look for on a compression connector submittal.
6) What does the red color on the Blackburn CSP350 mean?
Red is the die color code on this splice. Compression connectors are color coded so the installer can match the connector to the correct die set in the hydraulic or battery crimp tool, so you crimp this one with the red die index rather than guessing.
7) What is the difference between a short barrel and a long barrel copper splice?
A short barrel splice like the CSP350 uses a more compact body, which matters when you are working in a tight pull box, a crowded gutter, or a cable joint where length is limited. A long barrel version accepts more crimps per side and is often specified where higher pullout strength is wanted. If your spec calls out a long barrel splice, this is not the substitute.
8) Is the CSP350 a crimp splice or a mechanical set screw splice?
It is a compression splice, crimped with a die tool, not a mechanical set screw connector. That means you need the matching crimp tool and die on site; there are no bolts or screws to torque.
9) Is the Blackburn CSP350 sold individually or in a bag?
It is sold each, so one splice per unit. Since a cable run needs one splice per conductor, count your phases plus neutral when ordering rather than assuming a multi-pack.
How fast can I get the Blackburn CSP350 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 CSP350 come with a warranty?
Absolutely. The Blackburn CSP350 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 CSP350?
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 CSP350 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.