L H Dottie Co 20B Ground Clamp 1/2 to 1-1/4 Inch

Product Description

The L H Dottie CO 20B is a ground clamp designed to establish a reliable low-resistance bonding connection between a grounding conductor and a metal pipe or rod. It fits pipe sizes ranging from 1/2 inch to 1-1/4 inches in diameter. Electricians use this clamp during service entrance work, panel grounding, and supplemental electrode installations to satisfy NEC grounding requirements. The clamp is sold as a single unit and is suited for both new construction and retrofit electrical work where a secure mechanical and electrical bond to a water pipe or grounding electrode is required.

This ground clamp is used in residential and light commercial electrical installations. Typical applications include bonding to metal water service pipes, grounding electrodes, and similar metallic pipe systems as part of a grounding electrode system. It is appropriate for use in service entrance grounding, sub-panel grounding, and supplemental electrode connections where the pipe diameter falls within the 1/2 inch to 1-1/4 inch range.

Key Features

• Fits pipe diameters from 1/2 inch to 1-1/4 inches
• Designed for low-resistance mechanical and electrical bonding to metal pipe
• Single-unit packaging suitable for individual repair or new installation use
• Appropriate for NEC-compliant grounding electrode system work

Compatibility

Designed as an OEM-style replacement and standard ground clamp for use with metal pipe grounding electrodes in the 1/2 inch to 1-1/4 inch diameter range on residential and light commercial electrical systems.

Installation Notes

Installation should be performed by a licensed electrician in accordance with applicable NEC requirements for grounding electrode conductors and bonding connections. De-energize the circuit and confirm safe working conditions before installing or replacing any grounding hardware. The clamp should be tightened firmly against clean, bare metal pipe to ensure a solid mechanical and electrical connection. Do not install over painted, corroded, or non-conductive pipe coatings without first exposing bare metal.