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Manufacturer Resources
Product Specs
- Connection Type:
- Compression
- Country Of Origin:
- United States (US)
- Insulation Material:
- None
- Product Group:
- Wire & Cable Management
- Product Type:
- Clamp Tee Connector
- Selling Unit Of Measure:
- each
- Surface Finishing:
- Tin Plated
- Type2:
- Wire connectors
- Wire Size:
- Run 1000 kcmilTap 500 kcmil
- Department:
- Electrical
- Product Subgroup:
- Connectors
- Product Size:
- 5-5/8 inch long x 2-1/16 inch wide
- Product Material:
- Copper
Blackburn 2131-11 – Frequently Asked Questions
1) What conductor sizes does the Blackburn 2131-11 clamp tee connector take on the run and the tap?
The 2131-11 is sized for a 1000 kcmil run conductor with a 500 kcmil tap. That is a main-line tap connector, so the run cable passes through uncut and the tap branches off it. If your run is smaller than 1000 kcmil or your tap is larger than 500 kcmil, this is the wrong body.
2) Is the Blackburn 2131-11 tee connector copper only, or can I use it on aluminum conductors?
The body is copper with a tin plating. Tin plated copper connectors are used on copper conductors; a dual-rated aluminum/copper connector is a different part. Ask for an AL9CU rated tee if you are landing aluminum feeders.
3) How much room do I need in the box or gutter for a Blackburn 2131-11 tap connector?
Plan for a body measuring 5-5/8 x 2-1/16 inches, plus the bending radius of a 1000 kcmil run cable and clearance for a wrench on the clamp bolts. In a crowded gutter that footprint is usually the limiting factor, not the lug itself.
4) Does the Blackburn 2131-11 come insulated, or do I have to tape or boot it?
It ships bare, with no insulation on the connector. Any covering over the finished tap, tape, a cover kit or a mold-in-place boot, is a separate item you order yourself.
5) Do I need a hydraulic crimper for the Blackburn 2131-11, or does it bolt up?
This is a mechanical clamp tee, tightened with hand tools onto the conductors rather than crimped with a die set. That makes it practical for field taps and retrofit work where you cannot cut the run or get a crimp head into the enclosure.
6) Why is the Blackburn 2131-11 tin plated instead of bare copper?
Tin plating over the copper body slows oxidation on the contact surfaces and at the cable seats, which is why tinned connectors are specified in damp vaults, direct-burial pull boxes and industrial environments. Electrically it behaves as a copper connector.
7) Is the Blackburn 2131-11 sold individually or in a box?
It is sold each, one connector per unit, so order one per tap point. Count both ends of every branch when you are laying out a multi-tap gutter.
8) Is the Blackburn 2131-11 made in the USA for a domestic preference job?
Country of origin on the 2131-11 is the United States, which matters on federal, municipal and institutional work carrying domestic sourcing language in the spec.
How fast can I get the Blackburn 2131-11 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 2131-11 come with a warranty?
Absolutely. The Blackburn 2131-11 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 2131-11?
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 2131-11 from ZenSupply?
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and
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every order.
Our team is always ready to help you choose the right product for your project.