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Thomas & Betts Cast Bronze Ground Clamp 10-2 AWG Professional Grounding System
Professional Cast Bronze Grounding Solution for Reliable Electrical Connections
The Thomas & Betts Cast Bronze Ground Clamp delivers professional-grade grounding performance for 10-2 AWG applications. This cast bronze construction provides superior durability and corrosion resistance, ensuring reliable electrical connections in demanding environments. UL E3060 listed for professional compliance and safety standards.
Professional Features & Benefits
- Cast Bronze Construction: Provides exceptional durability and corrosion resistance for long-lasting performance in various environmental conditions.
- 10-2 AWG Compatibility: Engineered for precise conductor sizing to ensure optimal electrical contact and connection integrity.
- UL E3060 Listed: Meets rigorous safety and performance standards for professional electrical installations and code compliance.
- Professional Grounding Design: Delivers reliable ground fault protection and electrical safety in commercial and industrial applications.
- Robust Clamp Mechanism: Ensures secure conductor retention and consistent electrical contact under mechanical stress.
- Corrosion-Resistant Finish: Bronze material composition provides natural resistance to environmental degradation and oxidation.
Technical Specifications
- Department: Electrical
- Idea Granular Category Code Igcc: 4909 >> Grounding devices or assemblies
- Insulation Material: No
- Material Of Conductor: Bronze
- Product Group: Connectors
- Product Subgroup: Clamps
- Product Type: Ground Clamp
- Selling Unit Of Measure: each
- Standards: UL E3060
Professional Applications
- Commercial Building Grounding Systems
- Industrial Facility Electrical Safety
- Residential Service Panel Grounding
- Equipment Grounding Applications
- Electrical Panel and Enclosure Grounding
- Professional Electrical Installations
- Code-Compliant Grounding Solutions
Why Choose Thomas & Betts Quality?
Thomas & Betts delivers proven reliability through UL E3060 listing and cast bronze construction that ensures long-term performance. The professional-grade design and materials provide dependable grounding solutions that meet rigorous electrical safety standards and professional installation requirements.
Manufacturer Resources
Spec Sheet
Product Specs
- Idea Granular Category Code Igcc:
- 4909 >> Grounding devices or assemblies
- Insulation Material:
- No
- Material Of Conductor:
- Bronze
- Product Group:
- Grounding & Bonding
- Product Type:
- Ground Clamp
- Selling Unit Of Measure:
- each
- Standards:
- UL E3060
- Department:
- Electrical
- Product Subgroup:
- Grounding & Bonding
Thomas & Betts J2-BB – Frequently Asked Questions
1) What wire sizes does the Thomas & Betts J2-BB ground clamp accept?
The J2-BB cast bronze ground clamp takes grounding conductors from 10 AWG up to 2 AWG. That range covers the usual #8 and #6 bonding jumpers on residential and light commercial services as well as heavier #4 and #2 grounding electrode conductors, so one clamp handles most of what an electrician pulls on a service or panel ground.
2) Is the J2-BB ground clamp UL listed for electrical inspection?
Yes. The Thomas & Betts J2-BB carries UL listing under file E3060, which is what an inspector looks for on a grounding connector. That is the only standard stated for this clamp.
3) Is this ground clamp for a ground rod or for a water pipe?
The J2-BB is a general purpose cast bronze grounding clamp used for panel, enclosure, and equipment grounding as well as residential service grounding. If your connection is specifically a driven ground rod, a rod clamp is the purpose-built part, such as the NSi Industries GRC Series silicon bronze grounding rod clamp. For a copper water pipe electrode, NSi's G Series heavy duty bronze water pipe ground clamp is the dedicated option.
4) What is an equivalent bronze ground clamp to the Thomas & Betts J2-BB for water pipe grounding?
The NSi Industries G Series heavy duty bronze ground clamp for water pipe is the closest bronze-bodied counterpart to the Thomas & Betts J2-BB. Both use a bronze conductor material, so both suit the same corrosion exposure, and the NSi G Series is specifically described for water pipe service. The J2-BB is cast bronze and carries UL E3060.
5) What should I use instead of the Thomas & Betts J2-BB cast bronze ground clamp for a direct burial connection?
For a buried connection, use the NSi Industries G-S Series heavy duty bronze ground clamp, which is designated for direct burial. The J2-BB is a cast bronze ground clamp for 10-2 AWG conductors and is not designated for burial service, so on below-grade work the G-S Series is the one specified for that condition.
6) Is a grounding rod clamp the same thing as the Thomas & Betts J2-BB?
No. The NSi Industries GRC Series is a standard duty silicon bronze grounding rod clamp, built to land a conductor on a driven ground rod. The Thomas & Betts J2-BB is a cast bronze ground clamp for 10-2 AWG conductors in general grounding work. If the connection point is a ground rod, the GRC Series is the part made for that termination; the two are not interchangeable by application.
7) Can a bronze ground clamp like this be used outdoors or in a damp location?
Bronze is the reason you'd pick the J2-BB over a plated steel clamp. The cast bronze body resists corrosion and oxidation, so it holds up in wet and outdoor service entrance locations where a ferrous clamp would rust at the conductor contact point. For direct burial specifically, a clamp marked for that use is the right call, such as the NSi Industries G-S Series bronze ground clamp for direct burial.
8) What part number do I order for the Thomas & Betts cast bronze 10-2 AWG ground clamp?
Order Thomas & Betts J2-BB. That is the manufacturer part number for the cast bronze ground clamp rated 10-2 AWG, and it's a single catalog number with no finish or size options to specify.
9) Bronze or galvanized malleable iron ground clamp - which do I spec?
The Thomas & Betts J2-BB uses bronze as its conductor material, which resists oxidation naturally and is the common choice on copper water pipe and other copper-to-copper paths. The Appleton GH1 Series is a malleable iron universal ground clamp with a hot-dip galvanized finish, a heavier body with a galvanic-protection coating rather than a bronze casting. Facilities standardizing on dissimilar-metal-safe copper connections lean bronze; the GH1 Series is the universal iron alternative.
10) I need one clamp that covers several pipe sizes instead of the Thomas & Betts J2-BB - what is there?
The Appleton GH1 Series is a universal ground clamp in hot-dip galvanized malleable iron, which is the style MRO stockrooms carry when they want one clamp body to cover a range of attachment points. The Thomas & Betts J2-BB is a cast bronze ground clamp sized for 10-2 AWG conductors and sold each, which suits a defined conductor range rather than a catch-all.
11) Does the J2-BB clamp come with any insulation or boot?
No insulation. The J2-BB is a bare cast bronze clamp with no insulating cover or sleeve, which is standard for a grounding connection where metal to metal contact is the point.
12) Which bronze ground clamp is the heavy duty option compared to the NSi GRC?
Within the bronze clamps, the NSi G Series for water pipe and the NSi G-S Series for direct burial are both described as heavy duty, while the GRC Series grounding rod clamp is described as standard duty. The Thomas & Betts J2-BB is a cast bronze clamp carrying UL E3060, which is what most inspectors look for on the clamp body regardless of duty wording.
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Does the Thomas & Betts J2-BB come with a warranty?
Absolutely. The Thomas & Betts J2-BB is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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