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CU TINPLT SERV ENTRANCE CONN 6-4
Manufacturer Resources
Product Specs
- Connection Type:
- Mechanical
- Country Of Origin:
- United States (US)
- Enclosure Type:
- None
- Insulation Material:
- Bare
- Number Of Conductors:
- 2
- Outside Diameter:
- 5/16 in
- Product Group:
- Wire & Cable Management
- Product Type:
- Mechanical Service Entrance Connector
- Selling Unit Of Measure:
- each
- Surface Finishing:
- Tin Plated
- Type2:
- Mechanical connectors
- Voltage Rating:
- 35 kV
- Department:
- Electrical
- Product Subgroup:
- Connectors
- Product Material:
- Copper Alloy
Blackburn 4NPW – Frequently Asked Questions
1) What wire range does the Blackburn 4NPW service entrance connector take?
The 4NPW is a 6-4 range connector, so it handles conductors from 6 AWG through 4 AWG. It is a two-conductor mechanical connector, meaning one main and one tap land in the body and are clamped down with set screws rather than crimped or soldered.
2) Can I use the Blackburn 4NPW on aluminum conductors or only copper?
Copper only. The 4NPW is a copper alloy body with tin plating, sold as a CU (copper) connector. Tin plating protects the copper from corrosion and oxidation in a meter socket or outdoor service enclosure. If you have aluminum service entrance conductors, you need an AL/CU dual rated connector instead.
3) What voltage is the Blackburn 4NPW connector rated for?
35 kV. That covers standard 120/240V residential and commercial service entrance work with a wide margin, and also suits medium voltage applications up to 35 kV. Note the connector itself is bare, with no insulating cover or enclosure supplied, so insulation or taping is on you.
4) Does the Blackburn 4NPW come with an insulating cover or boot?
No. It ships bare, with no enclosure or insulating cover. On a service entrance splice you will need to insulate it yourself with tape, a re-enterable cover, or by landing it inside a meter socket or junction enclosure. Budget for that when you spec the job.
5) What is the outside diameter of the Blackburn 4NPW, and will it fit inside a meter socket?
The body measures 5/16 inch outside diameter. That is a compact profile for tapping service entrance conductors in tight meter socket or pedestal spaces, but check your available bending and working space against that figure plus whatever insulation you wrap over it.
6) Should I use a mechanical service entrance connector like the 4NPW or a compression connector?
A mechanical connector like the 4NPW clamps the conductors with set screws, so it installs with a wrench or screwdriver and no hydraulic crimp tool, and it can be opened and re-terminated later. Compression connectors need the matching die and tool and are permanent once crimped. For service entrance taps where a crew may need to re-enter the splice, or where you do not want to haul a crimper, the mechanical route is the practical one.
7) Is the Blackburn 4NPW made in the USA?
Yes, country of origin is the United States. That matters if you are bidding public or federally funded work with domestic sourcing requirements on electrical materials.
8) What part number should I order for a Blackburn tin plated copper 6-4 service entrance connector?
Blackburn 4NPW. That is the manufacturer part number for the tin plated copper mechanical service entrance connector covering 6 AWG to 4 AWG, two conductors.
How fast can I get the Blackburn 4NPW 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 4NPW come with a warranty?
Absolutely. The Blackburn 4NPW 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 4NPW?
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selection,
installation tips, and troubleshooting. Contact Us
Why buy the Blackburn 4NPW from ZenSupply?
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