You may also like
2/0SOL-250K PARALLEL DOUBLE CLAMP
Manufacturer Resources
Product Specs
- Country Of Origin:
- United States (US)
- Material Of Conductor:
- Bronze
- Product Group:
- Grounding & Bonding
- Product Type:
- Ground Clamp
- Selling Unit Of Measure:
- each
- Type2:
- Grounding devices or assemblies
- Department:
- Electrical
- Product Subgroup:
- Ground Clamps
Blackburn GH3TB – Frequently Asked Questions
1) What conductor sizes does the Blackburn GH3TB parallel clamp take?
The GH3TB is rated for conductors from 2/0 solid up to 250 kcmil, and being a parallel double clamp it holds two runs side by side rather than tapping one to a rod. If your grounding electrode conductor or bonding jumper falls below 2/0, this clamp is oversized for it and you want a smaller-range connector.
2) I need to splice two 4/0 copper ground conductors together - is a parallel clamp like the GH3TB the right part or should I use a ground rod clamp?
For joining two conductors running alongside each other, a parallel clamp is the right type, and the GH3TB covers 2/0 solid through 250 kcmil, so 4/0 copper sits inside that range. A ground rod clamp is a different animal: it lands one conductor onto a driven rod or pipe and will not hold two conductors in parallel. Pick by what you are connecting to, not by conductor size alone.
3) Is the Blackburn GH3TB bronze or copper alloy, and can it go in direct burial or a damp vault?
Bronze is the conductor material on the GH3TB, which is the standard alloy for grounding and bonding connectors used with copper conductors in wet or buried locations. Bronze to copper avoids the dissimilar-metal corrosion you get pairing copper conductors with aluminum-bodied hardware.
4) Is the Blackburn GH3TB made in the USA for a Buy American job?
Country of origin on the GH3TB is the United States, which is what government, healthcare, and education specs usually want documented on grounding hardware. Order it by the manufacturer part number GH3TB so the submittal matches the part that shows up.
5) Is the Blackburn GH3TB sold individually or in a box quantity?
Ground clamps under model GH3TB are sold each, so the quantity you order is the number of clamps you get. Institutional and MRO buyers standardizing a grounding kit can order exact counts per opening or per panel without breaking a carton.
How fast can I get the Blackburn GH3TB 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 GH3TB come with a warranty?
Absolutely. The Blackburn GH3TB 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 GH3TB?
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 GH3TB 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.