Thomas Betts JAB34H Single-nut Rod Clamp 1/0 to 8 Awg

Product Description

The THOMAS BETTS JAB34H is a single-nut rod clamp designed to bond or ground conductors to threaded grounding rods in electrical installations. Constructed from copper alloy, this clamp accommodates wire sizes from 1/0 AWG down to 8 AWG solid, and fits a 3/4-inch diameter grounding rod. A single-nut design simplifies field installation and reduces the number of tools required. The JAB34H meets CSA, UL Listed, and RoHS compliance standards, making it suitable for use on projects governed by strict certification requirements. Licensed electricians and grounding contractors are the primary installers of this hardware.

The JAB34H is used in residential, commercial, and light industrial grounding systems where a conductor must be mechanically and electrically connected to a driven ground rod. Typical applications include service entrance grounding, supplemental electrode installations, and equipment grounding in panel work. It is suited for use with solid or stranded copper conductors within the listed AWG range and is compatible with standard 3/4-inch diameter ground rods commonly used in low-voltage and power distribution systems.

Key Features

• Copper alloy construction provides reliable conductivity and corrosion resistance
• Accommodates wire sizes from 1/0 AWG to 8 AWG solid (8.30 to 53.40 sq mm)
• Compatible with 3/4-inch (19 mm) diameter grounding rods
• Single-nut design allows quick field installation with standard hand tools
• UL Listed, CSA Certified, and RoHS Compliant

Compatibility

Designed for use with 3/4-inch diameter grounding rods and copper conductors ranging from 1/0 AWG to 8 AWG solid. Confirm conductor size and rod diameter against local code requirements before installation.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NEC Article 250 grounding and bonding requirements. De-energize the circuit and verify absence of voltage before making any connections at the grounding electrode. Use a correctly sized wrench to tighten the clamp nut to secure both the conductor and the rod — avoid over-tightening, which can crack the clamp body. Inspect the connection for proper seating of the conductor before restoring power.