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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 4-1/8 inch x .813 inch Diameter.
Blackburn PC 300 – Frequently Asked Questions
1) Can I use the Blackburn PC 300 splice on aluminum conductor?
No. The PC 300 is a copper only barrel, tin plated for corrosion resistance. For aluminum or for an aluminum to copper transition you need a connector rated AL9CU or an aluminum bodied splice with the right oxide inhibitor, not this one.
2) What does the oil stop feature on the Blackburn PC 300 splice actually do?
Oil stop splices carry an internal barrier between the two conductor barrels so oil or compound cannot wick through the connector from one cable into the other. That matters on oil filled or paper insulated cable runs and on transitions into equipment where migrating oil would be a problem. The PC 300 is a straight oil stop compression splice for 300 kcmil copper.
3) Will the Blackburn PC 300 fit inside my cable duct or pull box?
The barrel measures 4-1/8 inches long by .813 inch in diameter, so allow for that plus your insulating tape or heat shrink buildup when you check clearance in a duct, wireway, or handhole. The 4-1/8 inch length also tells you how much cable jacket you need stripped back for the splice.
4) Does the Blackburn PC 300 splice come insulated or do I have to cover it?
It ships bare. The connector has no insulation on it, so the splice has to be re-insulated in the field with tape, heat shrink, or a cold shrink tube rated for the cable voltage. Budget that material into the job.
5) Is a compression splice like the PC 300 better than a set screw or mechanical connector for a 300 kcmil run?
Compression gives a permanent, sealed joint with no bolt to back off and no periodic retorque, which is why it is specified for direct buried, duct bank, and manhole splices. The tradeoff is that it is not reusable and you need the correct crimp tool and die. A mechanical set screw splice is the choice when you need to open the joint later or you do not have a hydraulic crimper on site. The PC 300 is the compression route, straight inline, 300 kcmil copper, with an oil stop barrier.
6) Is the Blackburn PC 300 made in the USA for a Buy American job?
Country of origin on the PC 300 is the United States, which is the line item most public agency and federally funded specs want to see documented for electrical connectors.
7) What part number should I give my supplier for a Blackburn 300 kcmil copper oil stop splice?
Blackburn PC 300. That is the manufacturer part number for the straight, tin plated copper oil stop compression splice at 300 kcmil.
How fast can I get the Blackburn PC 300 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 300 come with a warranty?
Absolutely. The Blackburn PC 300 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 300?
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