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Manufacturer Resources
Product Specs
- Country Of Origin:
- India (IN)United States (US)
- Outside Diameter:
- 3/4 in
- Product Group:
- Wire & Cable Management
- Product Type:
- Two-Bolt Connector
- Selling Unit Of Measure:
- each
- Standards:
- UL E9809
- Type2:
- Mechanical connectors
- Department:
- Electrical
- Product Subgroup:
- Connectors
- Product Material:
- Copper
Blackburn 2B350W – Frequently Asked Questions
1) What conductor sizes does the Blackburn 2B350W two-bolt connector take?
The 2B350W is built for the 4/0 through 350 kcmil range, which is what the "4/0-350" in the part designation refers to. Outside anything in that range you need a different size in the two-bolt series.
2) Is the Blackburn 2B350W connector copper or aluminum bodied?
Copper. That matters for copper-to-copper runs where a contractor or inspector wants the connector material matched to the conductor, and it keeps galvanic mismatch out of the joint.
3) Is the Blackburn 2B350W UL listed?
It carries UL file E9809. If your spec or inspector requires a listed mechanical connector on the feeder or ground connection, that listing is on record for this part.
4) What does the "W" and the spacer mean on the Blackburn 2B350W?
The W suffix indicates the connector ships with a spacer, described as "W/SPCR" in the part description. The spacer sits between the two conductors in the bolted joint so smaller conductors in the accepted range seat properly instead of rolling in an oversized cavity.
5) What is the 3/4 inch dimension on the Blackburn 2B350W connector?
3/4 inch is the outside diameter called out for the part, matching the "3/4B" bolt reference in the description. Check it against your bus or stud clearance before you order a run of them.
6) Is a two-bolt mechanical connector the right choice, or should I be crimping?
A two-bolt mechanical connector like the 2B350W is a bolted, re-enterable joint. You torque it with hand tools, you can open it later to add or swap a conductor, and no hydraulic crimper or die set is needed on site. A compression lug is the alternative when the spec calls for an irreversible connection. For service, feeder tap and grounding work where crews need to get back into the joint, the mechanical connector is the practical pick.
How fast can I get the Blackburn 2B350W 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 2B350W come with a warranty?
Absolutely. The Blackburn 2B350W 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 2B350W?
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selection,
installation tips, and troubleshooting. Contact Us
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