You may also like
U BOLT GRD CLAMP COND RANGE 2/0-4
Manufacturer Resources
Product Specs
- Country Of Origin:
- India (IN)
- Insulation Material:
- No
- Material Of Conductor:
- Copper
- Product Group:
- Grounding & Bonding
- Product Net Depth Length:
- 2-3/4 in
- Product Type:
- Ground Clamp
- Selling Unit Of Measure:
- each
- Standards:
- UL E3060, CSA 12798
- Type2:
- Grounding devices or assemblies
- Department:
- Electrical
- Product Subgroup:
- Ground Clamps
Blackburn GUV7821 – Frequently Asked Questions
1) What conductor sizes does the Blackburn GUV7821 ground clamp accept?
The GUV7821 U-bolt ground clamp takes conductors from 2/0 through 4 AWG. If your grounding electrode conductor is smaller than 4 AWG or larger than 2/0, this is the wrong clamp for the run.
2) Can I use the Blackburn GUV7821 with aluminum grounding conductor?
No. The GUV7821 is specified for copper conductor. For aluminum or copper-clad aluminum grounding conductor, pick a clamp rated for those materials instead.
3) Is the Blackburn GUV7821 ground clamp UL listed for inspection sign-off?
It carries UL E3060 and CSA 12798, so it satisfies an inspector looking for a listed grounding device on both sides of the border.
4) How big is the Blackburn GUV7821 clamp, and will it fit in a tight ground bar area?
Net depth/length is 2-3/4 inches. That is the dimension to check against clearance behind the pipe or rod where you are landing the conductor.
5) What is a U-bolt ground clamp used for versus a pipe or rod clamp?
A U-bolt style clamp like the GUV7821 saddles the conductor and draws it down against the mating surface with the bolt, which is why it handles heavier gauges such as 2/0. A direct-burial pipe clamp or acorn rod clamp is what you reach for when the connection is to a water pipe or a driven ground rod specifically.
6) Is the GUV7821 sold individually or in a bag of ten?
Sold each, so quantity one gets you one clamp. Order per connection point if you are standardizing a building's grounding.
7) Does the Blackburn GUV7821 come insulated?
No insulation on this one, it is a bare metal U-bolt grounding clamp. Bare is normal for grounding connections, where continuity to the electrode is the point.
How fast can I get the Blackburn GUV7821 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 GUV7821 come with a warranty?
Absolutely. The Blackburn GUV7821 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 GUV7821?
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 GUV7821 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.