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Manufacturer Resources
Product Specs
- Connection Type:
- Compression
- Country Of Origin:
- United States (US)
- Insulation Material:
- None
- Number Of Conductors:
- 2
- Product Group:
- Wire & Cable Management
- Product Type:
- Compression Splice
- Selling Unit Of Measure:
- each
- Surface Finishing:
- Tin-Plated
- Type2:
- Wire or cable compression splice
- Department:
- Electrical
- Product Subgroup:
- Splices
- Product Size:
- Length 4-3/8 inches
Blackburn PC 400 – Frequently Asked Questions
1) What is the Blackburn PC 400 splice used for?
The PC 400 is a straight compression splice for joining two copper conductors end to end, sized for 400 wire. It is an oil stop design, so it blocks oil migration through the splice, which is what you want on oil-filled cable or in wet/oily duct work. It is a bare connector with no insulation, so the joint has to be insulated after crimping with tape, heat shrink, or a mold.
2) Can I use the Blackburn PC 400 on aluminum conductors?
No. The PC 400 is a copper-body splice, tin-plated, and is intended for copper conductor to copper conductor. For aluminum or for an aluminum-to-copper transition you need a connector rated AL9CU or an aluminum-bodied splice, not this one.
3) Do I need to insulate the PC 400 splice after crimping?
Yes. The splice ships bare with no insulation on the barrel, so the completed joint needs to be built back up to the cable's insulation level, typically with rubber tape and vinyl jacket, heat shrink, or a cold shrink/mold kit sized for the 4-3/8 inch barrel length plus your taper.
4) How long is the Blackburn PC 400 splice barrel, and will it fit in my splice box?
Overall length is 4-3/8 inches. Allow for that plus the insulation build-up and conductor training radius at each end when you are laying out a handhole or splice enclosure.
5) Can I use a set screw or mechanical splice instead of the PC 400?
For an oil-filled or oil-migration-prone cable, no. A set screw or mechanical connector does not stop oil travel along the conductor. The PC 400 is a compression oil stop splice, so it is crimped with a die tool and seals the conductor path. Mechanical splices are the choice when you have no crimp tool on site and no oil concern.
6) What does the tin plating on this copper splice do?
The tin plating on the PC 400 protects the copper barrel from oxidation and corrosion in damp, underground, or oily splice locations, and keeps the contact surface clean during storage before the crimp is made.
7) Is the PC 400 sold individually or in a bag?
Each. One PC 400 splice per unit, ordered under Blackburn part number PC 400, so buy one per joint plus spares for miscrimps.
8) Is the Blackburn PC 400 made in the USA?
Country of origin is the United States, which matters if your project carries Buy American or domestic-content requirements on electrical material.
How fast can I get the Blackburn PC 400 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 PC 400 come with a warranty?
Absolutely. The Blackburn PC 400 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 PC 400?
You can call, text, or email our expert support team for fast answers. We’re here to help with
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selection,
installation tips, and troubleshooting. Contact Us
Why buy the Blackburn PC 400 from ZenSupply?
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and
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every order.
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