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Manufacturer Resources
Product Specs
- Country Of Origin:
- India (IN)
- Outside Diameter:
- 1/2 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 2B20X – Frequently Asked Questions
1) Does the Blackburn 2B20X come with a spacer?
No. The 2B20X is the without-spacer version, which is what the "W/O SPCR" in the description means. A spacer is used when you're splicing two conductors of noticeably different diameters so the bolt pressure stays even; without one, the connector is set up for conductors of similar size in the 2 to 2/0 range. If your splice pairs a small conductor to a large one, specify a spacer version instead.
2) Can I use the 2B20X on aluminum conductors?
The 2B20X is a copper-bodied connector, specified for copper. For aluminum or for a copper-to-aluminum transition you want a dual-rated AL9CU mechanical connector rather than this one, since putting bare aluminum into a copper-only body risks galvanic corrosion at the joint.
3) What is the two-bolt design on the 2B20X for, and when would I use a single-bolt connector instead?
Two bolts spread the clamping load over a longer contact length, which is what you want on a straight splice of heavier conductors like 2 AWG to 2/0 where a single bolt can cone the strands. Single-bolt mechanical connectors are the shorter, lower-cost choice on smaller conductors and tight boxes. The 2B20X is the two-bolt copper version.
4) Will the Blackburn 2B20X fit through a 1/2 inch opening or inside a conduit body?
Its outside diameter is 1/2 inch, so plan the box or enclosure fill around that plus the insulation of the conductors and whatever tape or heat shrink you're putting over the finished splice. Check clear working space inside the enclosure before you commit, since the connector body sits in line with the run.
5) Is the Blackburn 2B20X an insulated connector?
No insulation is supplied with it. The 2B20X is a bare copper mechanical connector, so the splice has to be insulated in the field with tape, heat shrink, or a cover to match the conductor insulation rating.
6) How many pieces come in a Blackburn 2B20X order?
One. The 2B20X is sold each, one piece per unit, so if you're splicing a three-phase feeder plus a neutral you need to order four.
How fast can I get the Blackburn 2B20X 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 2B20X come with a warranty?
Absolutely. The Blackburn 2B20X 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 2B20X?
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 2B20X 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.