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Starting at
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NSi Industries Heavy Duty Bronze Ground Clamp for Direct Burial
The NSi Industries Heavy Duty Bronze Ground Clamp for Direct Burial is engineered for grounding electrical infrastructure in below-grade and direct burial applications, fitting pipes ranging from 1/2" to 1" in diameter. The clamp pairs a cast bronze body with 304 stainless steel tightening screws for durable, corrosion-resistant performance in demanding indoor and outdoor environments. This ground clamp is UL Listed 467 for Grounding and Bonding, ensuring recognized, code-compliant performance for professional electrical work. Part of the NSi Industries G-S Series, it is built as a stock-reliable grounding solution that electricians and contractors can count on for direct burial and general grounding installations.
Key Features
- Trade Size Range: Fits pipes from 1/2" to 1" in diameter, offering flexibility across common grounding applications.
- Durable Construction: Cast bronze clamp body provides long-term corrosion resistance for direct burial and outdoor use.
- Stainless Steel Hardware: 304 stainless steel tightening screws add reliable, rust-resistant clamping strength.
- Direct Burial Rated: Suitable for direct burial applications, ideal for grounding electrical infrastructure below grade.
- Interchangeable Design: Adapters and hubs are interchangeable, allowing on-the-fly adjustment and greater installation flexibility.
- UL Listed Performance: UL Listed 467 for Grounding and Bonding, meeting recognized safety performance standards.
- Product Series: Part of the NSi Industries G-S Series of grounding clamps.
- 1-Year Warranty: Backed by a 1-year manufacturer warranty for added peace of mind.
Certifications & Compliance
- UL Listed 467 for Grounding and Bonding
- Suitable for Direct Burial Applications
Technical Specifications
- INNER LENGTH: 8.8
- WARRANTY: 1 Year
Typical Applications
- Direct Burial Grounding Installations
- Electrical Service and Utility Grounding
- Commercial and Industrial Electrical Grounding Systems
- Residential Electrical Grounding
- Bonding and Grounding of Electrical Infrastructure
- Renovation and New Construction Electrical Work
Why NSi Industries?
NSi Industries combines cast bronze construction with 304 stainless steel hardware to deliver a grounding clamp built for long-term, corrosion-resistant performance in direct burial and general grounding applications. Backed by UL Listed 467 certification for Grounding and Bonding and a 1-year warranty, this ground clamp offers electricians and contractors reliable, code-compliant grounding hardware they can stock with confidence. Its interchangeable adapter and hub design adds further flexibility on the jobsite, making it a practical choice for stocking distributors and installers alike.
Manufacturer Resources
Product Specs
- Sub-Division:
- Electrical-E H2
- Division:
- Electrical H1
- WARRANTY:
- 1 Year
- Series:
- G-S Series
- Field Application:
- Ground
- Country of Origin:
- India
- Product Material:
- Cast Bronze
- Product Type:
- Ground Clamp
- Product Size:
- 1/2" - 1"
- Listing:
- UL Listed
- Department:
- Electrical
- Product Group:
- Grounding & Bonding
- Product Subgroup:
- Grounding & Bonding
NSi G1S-DB – Frequently Asked Questions
1) What pipe sizes does the NSi G1S-DB bronze ground clamp fit?
The G1S-DB fits pipe from 1/2 inch up to 1 inch. If your ground rod or water pipe connection falls outside that range, this is the wrong clamp, so measure the trade size at the point you're clamping before you order.
2) Can this ground clamp be buried underground in soil?
Yes. The NSi G1S-DB is built for direct burial grounding, which is why the body is cast bronze and the tightening screws are 304 stainless. Those are the two materials that survive below grade without the galvanic corrosion you get from mixed hardware on a buried connection.
3) What is the difference between the NSi G1S-DB bronze ground clamp and the Appleton GH1 malleable iron ground clamp?
The NSi Industries G1S-DB uses a cast bronze body with 304 stainless steel tightening screws and is UL Listed 467 for grounding and bonding, fitting pipe from 1/2 inch to 1 inch and rated for direct burial. The Appleton GH1 Series is a universal ground clamp built from malleable iron with a hot-dip galvanized finish. The practical distinction is the base metal and corrosion protection approach: bronze with stainless hardware on the NSi clamp versus galvanized malleable iron on the Appleton. Where a specification or inspector calls for a bronze direct burial clamp on a water pipe or ground rod below grade, the G1S-DB is the one that matches that language.
4) Will this NSi clamp work on a copper water pipe ground without causing corrosion at the joint?
Bronze on copper is the standard pairing for a water pipe electrode, and the G1S-DB uses a cast bronze body with 304 stainless screws so nothing dissimilar enough to drive galvanic corrosion sits at the connection. The catch is size: it clamps 1/2 inch to 1 inch pipe only.
5) Can one G1S-DB clamp cover several different pipe sizes on a job?
That's the point of the design. The adapters and hubs on the G-S Series clamp are interchangeable, so one clamp can be adjusted on the spot anywhere across the 1/2 inch to 1 inch range instead of stocking a separate part per size.
6) Is a galvanized malleable iron ground clamp an acceptable substitute for a bronze direct burial clamp?
They are not automatically interchangeable. The NSi Industries G1S-DB is a cast bronze clamp with stainless steel screws that is UL Listed 467 for grounding and bonding and called out for direct burial use below grade. The Appleton GH1 Series is malleable iron with a hot-dip galvanized finish, a different material pairing. Because a buried clamp sits in contact with soil and often with a copper conductor, jobs that specify a bronze direct burial clamp should be filled with the bronze part rather than a galvanized iron one; check the drawing note or the inspector's requirement before swapping.
7) I need a ground clamp for pipe larger than 1 inch - what should I use instead of the G1S-DB?
The NSi Industries G1S-DB is sized for pipe from 1/2 inch to 1 inch, so it is not the clamp for larger water service or conduit. For a wider pipe range, the Appleton GH1 Series is offered as a universal ground clamp in malleable iron with a hot-dip galvanized finish. Confirm the pipe outside diameter at the point of attachment before ordering either, since grounding clamps are listed for a specific conductor and pipe size combination.
8) Is the NSi G1S-DB suitable for outdoor service entrance grounding, not just buried runs?
Yes, it's used indoors and outdoors as well as below grade. Typical uses include electrical service and utility grounding, commercial and industrial grounding systems, residential work, and bonding of electrical infrastructure on both new construction and renovations.
9) What is the manufacturer part number for the NSi direct burial bronze ground clamp?
Order it as NSi Industries G1S-DB, part of the G-S Series of grounding clamps. It's manufactured in India.
How fast can I get the NSi G1S-DB 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 NSi G1S-DB come with a warranty?
Absolutely. The NSi G1S-DB 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 NSi G1S-DB?
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