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NSI Industries G-66 - The NSI G-66 Bronze Ground Clamp with Wire Adapters grips on pipes between 1-1/4" to 2" in diameter and features a special pressure bar which grips wiring and lessens the chances of grounding conductor being pulled out. The zinc-plated steel screws and bronze clamp body are made of economical, high-quality metals that provide durable performance in a range of applications. Use this clamp with wire adapters for connecting unarmored 4, 6, or 8 STR ground wire to water pipe for grounding. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.
NSI Industries

G-66

UPC: 662381010483

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Overview

The NSI G-66 Bronze Ground Clamp, identified by SKU G-66, is a UL Listed 467 product specifically designed and certified for Grounding and Bonding applications. This clamp offers a robust solution for connecting unarmored ground wire, compatible with sizes 4, 6, or 8 STR, directly to water pipe for effective and reliable grounding. The construction of the G-66 features a high-quality bronze clamp body, chosen for its durability and resistance, complemented by zinc-plated steel screws. This combination of economical yet high-quality metals ensures that the clamp delivers durable performance across a variety of applications. Engineered for a secure fit, the G-66 is designed to grip pipes with diameters ranging from 1-1/4 inches to 2 inches in diameter. A critical design element of the G-66 is its special pressure bar. This innovative feature is engineered to provide a firm grip on the wiring, which significantly lessens the chances of the grounding conductor being pulled out, thereby enhancing the overall integrity and longevity of the grounding connection. This makes the G-66 a dependable and essential component for ensuring a stable and secure grounding connection in various electrical installations where safety and reliability are paramount. NSI Industries is dedicated to providing stock products that users can consistently rely on, ensuring that these products meet or exceed the stringent industry standards for grounding and bonding applications. The G-66 is manufactured in the USA.
  • Unarmored Wire Grounding: Use the G-66 Bronze Ground Clamp with Wire Adapters to attach unarmored ground conductors to water pipe for grounding
  • Pressure Bar: This ground clamp features a special pressure bar which grips cable and lessens the chances of grounding conductor being pulled out
  • Range of Sizes: The wire adapter fits unarmored 4, 6, or 8 STR ground conductors
  • Bronze and Steel: The clamp body is made from bronze, while the tightening screws are made from reliable zinc-plated steel, both of which provide durable long-term use
  • UL Listed: The reliable NSI grounding and bonding products meet UL 467 performance standards for grounding and bonding

Specifications

Application
Grounding Wire
Clamp Material
4,6,8 STR
Insulation Material
Silicon Bronze
Special Features
1 1/4-2 Pipe Size - Clamp Style Hub IN
Standard
UL467
Type
Bronze ground clamps with adaptor
Warranty
1 Year
Package Dimensions (L x W x H)
3.58 IN x 0.85 IN x 2.04 IN
Package Dimensions (L x W x H)
9.0932 cm x 21.59 mm x 5.1816 cm
Package Weight (Imperial)
0.520 L
Package Weight (Metric)
0.236 kg
The NSI G-20DB Heavy Duty Bronze Ground Clamp with Wire Adapters grips on pipes between 1/2" to 1" in diameter and features a special pressure bar for grasping cable armor thereby reducing the chances of grounding conductor being pulled out. The silicon bronze screws and bronze clamp body are made from tough, high-quality metals that provide durable performance in a range of applications. Use this clamp to connect 4, 6, or 8 STR ground wire to copper water pipe. UL Listed for direct burial in both earth and concrete and well as UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.

G-20DB

The NSI G-20DB Heavy Duty Bronze Ground Clamp with Wire Adapters grips on pipes between 1/2" to 1" in diameter and features a special pressure bar for grasping cable armor thereby reducing the chances of grounding conductor being pulled out. The silicon bronze screws and bronze clamp body are made from tough, high-quality metals that provide durable performance in a range of applications. Use this clamp to connect 4, 6, or 8 STR ground wire to copper water pipe. UL Listed for direct burial in both earth and concrete and well as UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.
Bronze Ground Clamp Connector, 3-Wire, Parallel to Pipe, 4 AWG SOL - 250 kcmil, 3/4" Pipe Size

GTW050-250-1

Bronze Ground Clamp Connector, 3-Wire, Parallel to Pipe, 4 AWG SOL - 250 kcmil, 3/4" Pipe Size
Use the GHM-50 360 Degree Swing Type Conduit Hub alongside NSI ground clamps with serrated hubs to ground copper grounding conductor to water pipes in indoor environments. This 1/2" adapter hub swings 360 degrees to make alignment simple and offer greater flexibility in installation. The zinc-plated steel screws and bronze hub are made of economical, high-quality metals that provide durable performance in a range of applications. Conduit hub allows for entry from any direction and fits 1/2" conduit or wire in the range of 10 SOL to 2/0 STR. Stock products you can rely on—stock NSI.

GHM-50

Use the GHM-50 360 Degree Swing Type Conduit Hub alongside NSI ground clamps with serrated hubs to ground copper grounding conductor to water pipes in indoor environments. This 1/2" adapter hub swings 360 degrees to make alignment simple and offer greater flexibility in installation. The zinc-plated steel screws and bronze hub are made of economical, high-quality metals that provide durable performance in a range of applications. Conduit hub allows for entry from any direction and fits 1/2" conduit or wire in the range of 10 SOL to 2/0 STR. Stock products you can rely on—stock NSI.
We built the NSI GRC-34H Heavy Duty Silicon Bronze 3/4" Ground Clamp for demanding applications including direct burial, where the simple mechanical design and reliable clamping power of the screw outperform other options. GRC-family clamps with the -SB suffix have a body and screw made from silicon bronze for maximum strength, and the clamp is UL-listed for direct burial in earth or concrete. Stock products you can rely on—stock NSI.

GRC-34H

We built the NSI GRC-34H Heavy Duty Silicon Bronze 3/4" Ground Clamp for demanding applications including direct burial, where the simple mechanical design and reliable clamping power of the screw outperform other options. GRC-family clamps with the -SB suffix have a body and screw made from silicon bronze for maximum strength, and the clamp is UL-listed for direct burial in earth or concrete. Stock products you can rely on—stock NSI.
The NSI G-83 Ground Clamp for Rigid Conduit with Flexible Wire Strap, grips on pipes between 1/2" to 1" in diameter and features a 1" adapter hub connected to the clamp by a flexible copper strap. The wire strap and adapter both swing 360 degrees, making alignment simple. The copper strap provides additional flexibility during grounding and helps to protect the conduit system from results of vibrations in the water system. The zinc-plated steel screws and bronze clamp body are made of economical, high-quality metals that provide durable performance in a range of applications. Use this clamp to attach ground wires from rigid conduit to water pipes in indoor environments. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.

G-83

The NSI G-83 Ground Clamp for Rigid Conduit with Flexible Wire Strap, grips on pipes between 1/2" to 1" in diameter and features a 1" adapter hub connected to the clamp by a flexible copper strap. The wire strap and adapter both swing 360 degrees, making alignment simple. The copper strap provides additional flexibility during grounding and helps to protect the conduit system from results of vibrations in the water system. The zinc-plated steel screws and bronze clamp body are made of economical, high-quality metals that provide durable performance in a range of applications. Use this clamp to attach ground wires from rigid conduit to water pipes in indoor environments. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.
We built the NSI GRC-38 Standard Duty Silicon Bronze Grounding Rod Clamp for demanding applications including direct burial, where the simple mechanical design and reliable clamping power of the screw outperform other options. The GRC-38 Grounding Rod Clamp fits over grounding rod with a diameter of 3/8" with room to tighten the clamping screw onto a range of 10 AWG solid to 4 AWG stranded conductors. GRC-family clamps with the -SB suffix have a body and screw made from silicon bronze for maximum strength, and the clamp is UL-listed for direct burial in earth or concrete. Stock products you can rely on—stock NSI.

GRC-38

We built the NSI GRC-38 Standard Duty Silicon Bronze Grounding Rod Clamp for demanding applications including direct burial, where the simple mechanical design and reliable clamping power of the screw outperform other options. The GRC-38 Grounding Rod Clamp fits over grounding rod with a diameter of 3/8" with room to tighten the clamping screw onto a range of 10 AWG solid to 4 AWG stranded conductors. GRC-family clamps with the -SB suffix have a body and screw made from silicon bronze for maximum strength, and the clamp is UL-listed for direct burial in earth or concrete. Stock products you can rely on—stock NSI.
We built the NSI GRC-34 Standard Duty Silicon Bronze Grounding Rod Clamp for demanding applications including direct burial, where the simple mechanical design and reliable clamping power of the screw outperform other options. The GRC-34 Grounding Rod Clamp fits grounding rod with a diameter of 3/4" and rebar with a diameter of 5/8" with room to tighten the clamping screw onto a range of 10 AWG solid to 1 AWG stranded conductors. GRC-family clamps with the -SB suffix have a body and screw made from silicon bronze for maximum strength, and the clamp is UL-listed for direct burial in earth or concrete. Stock products you can rely on—stock NSI.

GRC-34

We built the NSI GRC-34 Standard Duty Silicon Bronze Grounding Rod Clamp for demanding applications including direct burial, where the simple mechanical design and reliable clamping power of the screw outperform other options. The GRC-34 Grounding Rod Clamp fits grounding rod with a diameter of 3/4" and rebar with a diameter of 5/8" with room to tighten the clamping screw onto a range of 10 AWG solid to 1 AWG stranded conductors. GRC-family clamps with the -SB suffix have a body and screw made from silicon bronze for maximum strength, and the clamp is UL-listed for direct burial in earth or concrete. Stock products you can rely on—stock NSI.
The NSI G-41 Bronze 1/2" Conduit Hub can be swapped onto any of the NSI bronze grounding clamps, providing a flexible adapter hub that swings 360 degrees to make alignment simple. The bronze hub is made from economical, high-quality metal to provide durable performance in a range of applications. Use this interchangeable hub to attach rigid conduit and ground conductors to pipes or conduit in professional environments. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.

G-41

The NSI G-41 Bronze 1/2" Conduit Hub can be swapped onto any of the NSI bronze grounding clamps, providing a flexible adapter hub that swings 360 degrees to make alignment simple. The bronze hub is made from economical, high-quality metal to provide durable performance in a range of applications. Use this interchangeable hub to attach rigid conduit and ground conductors to pipes or conduit in professional environments. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.

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