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Manufacturer Resources
Product Specs
- Country Of Origin:
- United States (US)
- Insulation Material:
- No
- Material Of Conductor:
- Iron
- Product Group:
- Grounding & Bonding
- Product Type:
- Ground Clamp
- Selling Unit Of Measure:
- each
- Standards:
- UL E3060
- Type2:
- Grounding devices or assemblies
- Department:
- Electrical
- Product Subgroup:
- Ground Clamps
Blackburn 3-TB – Frequently Asked Questions
1) What pipe size does the Blackburn 3-TB water pipe ground clamp fit?
The Blackburn 3-TB fits water pipe from 1-1/4 inch through 2 inch trade size. On anything smaller or larger, the strap and body won't seat correctly, so you need a different size clamp in the series rather than forcing this one.
2) What size grounding conductor will the 3-TB ground clamp accept?
It takes 6 AWG through 4 AWG copper grounding electrode conductor. If your service calls for a larger conductor, say 2 AWG or 1/0 for a big service, this clamp is undersized for the run and you need a heavier pipe clamp.
3) Is the Blackburn 3-TB UL listed for grounding to a water pipe electrode?
Yes, it carries UL file E3060 as a grounding device. That listing is what an inspector looks for when the clamp is used to bond the grounding electrode conductor to a metal water pipe electrode.
4) What is the body of the 3-TB ground clamp made from?
Iron body construction. On a galvanized steel water line that's a compatible pairing; if you're clamping to copper tube, watch for dissimilar metal contact and use a clamp rated for copper water pipe instead where the spec calls for it.
5) Is the Blackburn 3-TB clamp insulated?
No insulation on it. It's a bare metal mechanical ground clamp, which is what you want for an electrode bond since the connection itself has to be metal to metal and accessible.
6) Do Blackburn 3-TB clamps come in a pack or individually?
Sold each, so order one per connection point. For a multi-building or multi-unit job, count one clamp per grounding electrode bond plus any bonding jumpers around water meters and dielectric unions.
7) Is the Blackburn 3-TB made in the USA?
Yes, country of origin is the United States, which matters on federally funded and Buy American specified work.
How fast can I get the Blackburn 3-TB 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 3-TB come with a warranty?
Absolutely. The Blackburn 3-TB 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 3-TB?
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 3-TB 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.