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Manufacturer Resources
Product Specs
- Country Of Origin:
- United States (US)
- Insulation Material:
- None
- Material Of Conductor:
- Bronze
- 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 3906BU – Frequently Asked Questions
1) Is the Blackburn 3906BU clamp direct burial rated?
Yes, it is a direct burial water pipe ground clamp, so it can be used on buried pipe or in a concrete encasement where the electrode connection is not accessible. The body is bronze, which is what makes it suitable for contact with earth and with copper water pipe without galvanic trouble.
2) Is the Blackburn 3906BU UL listed for grounding?
It carries UL file E3060 as a grounding device. That listing is what an electrical inspector looks for on a grounding electrode conductor connection to the water pipe electrode, and it is the basis for using the clamp direct buried.
3) Will a bronze ground clamp corrode on a copper water service pipe?
Bronze on copper is the standard pairing for a grounding electrode connection, and the 3906BU is bronze throughout with no insulating material on it. That is the combination inspectors expect on a copper cold water service. On galvanized or ferrous pipe, dissimilar metal contact is a consideration and many jurisdictions call for a listed clamp suited to that pipe material.
4) Can I use this clamp to bond around a water meter or a plastic repair section?
Yes, that is a normal use for a 6 inch water pipe clamp. You would install a 3906BU on the pipe each side of the meter, union, or non-metallic section and run a bonding jumper between them so the electrode path stays continuous. Two clamps are required for that, since each one is sold singly.
5) Is the 3906BU sold individually or in a box?
Each. The selling unit is a single clamp, so order one per electrode connection. If you are bonding both sides of a water meter or a dielectric union, that is two clamps.
6) Is the Blackburn 3906BU made in the USA?
Country of origin is the United States, which matters on federally funded work and on jobs with domestic sourcing language in the spec.
How fast can I get the Blackburn 3906BU delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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U.S.
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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 3906BU come with a warranty?
Absolutely. The Blackburn 3906BU 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 3906BU?
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