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Manufacturer Resources
Product Specs
- Country Of Origin:
- South Africa (ZA)
- Material Of Conductor:
- Copper
- Product Group:
- Grounding & Bonding
- Product Net Depth Length:
- 8 ft
- Product Type:
- Pointed Ground Rod
- Selling Unit Of Measure:
- each
- Standards:
- UL E3060
- Type2:
- Grounding devices or assemblies
- Department:
- Electrical
- Product Subgroup:
- Grounding Devices
Blackburn 7508 – Frequently Asked Questions
1) Is the Blackburn 7508 ground rod 8 feet long and 3/4 inch diameter?
Yes. The Blackburn 7508 is a 3/4 inch diameter rod measuring 8 ft in length, with a pointed driving end. The 8 ft length is what electrical inspectors look for on a driven electrode, and it has to be driven full depth so the top sits at or below grade.
2) Is this ground rod UL listed?
The Blackburn 7508 is covered under UL file E3060, which is the listing reference an inspector or spec reviewer will want to see on a grounding electrode.
3) Should I use a 3/4 inch ground rod instead of a 5/8 inch one?
Go to 3/4 inch when the soil is rocky or dense and a thinner rod would mushroom or bend while driving, or when the engineer's spec calls for it. The 7508 is the 3/4 inch, 8 ft copper size. For ordinary residential service grounding in normal soil, 5/8 inch by 8 ft is the common size and costs less to drive. Also check your ground rod clamp: a clamp sized for 5/8 inch rod will not close on 3/4 inch.
4) Is the conductor material on the Blackburn 7508 copper?
Copper is the conductor material on the 7508. That is what matters for corrosion life in direct burial and for keeping the electrode compatible with a copper grounding electrode conductor, since copper to copper avoids the dissimilar metal problem you get pairing copper wire with a galvanized rod.
5) Does the 7508 ground rod come with a clamp, and how is it sold?
The 7508 is sold each, meaning one rod per unit, so the acorn or ground rod clamp that ties your grounding electrode conductor to the rod is a separate line item. Order a clamp rated for a 3/4 inch rod and for direct burial if it will be below grade.
6) Where is the Blackburn 7508 ground rod made?
Country of origin on the 7508 is South Africa. Worth knowing if you are bidding public work with domestic sourcing language in the specification.
How fast can I get the Blackburn 7508 delivered?
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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 7508 come with a warranty?
Absolutely. The Blackburn 7508 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 7508?
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