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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 2B350X – Frequently Asked Questions
1) What wire sizes does the Blackburn 2B350X two-bolt connector take?
The 2B350X is rated for conductors from 4/0 through 350 kcmil. Anything smaller than 4/0 needs a different catalog number in the two-bolt range, since a conductor that does not fill the barrel will not compress correctly under the bolts.
2) Is the Blackburn 2B350X copper only, or can I use it on aluminum conductors?
It is a copper-bodied mechanical connector, built for copper conductors. The "CU" in the catalog description is the giveaway. For aluminum or an aluminum-to-copper run you want a dual-rated AL9CU connector instead, not this one.
3) Does the 2B350X come with a spacer for connecting two different size conductors?
No. The 2B350X is the without-spacer version. If you are splicing a large conductor to a noticeably smaller one, you need the spacer variant so the smaller conductor seats properly; without it, the small conductor can shift under the bolt pressure.
4) Is the Blackburn 2B350X UL listed?
Yes, it carries UL file E9809. That is the reference an inspector or a spec reviewer will want when the connector goes into a panel, pull box, or service entrance.
5) What is the conductor opening size on the 2B350X connector?
The barrel outside diameter is 3/4 inch. Use that number when you are checking clearance inside a crowded box or working out how much room the connector and its bolt heads will take up alongside adjacent taps.
6) Do I need a crimp tool or a hydraulic press to install the Blackburn 2B350X?
No press needed. This is a mechanical two-bolt connector, so it installs with a wrench or socket on the two bolts. That makes it practical for field splices and service work where you do not want to haul a hydraulic crimper.
7) Is the 2B350X sold individually or in a box?
It ships as a single piece, sold each. Order one per splice point and count your terminations before you place the order.
How fast can I get the Blackburn 2B350X 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 2B350X come with a warranty?
Absolutely. The Blackburn 2B350X 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 2B350X?
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 2B350X 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.