NSI Industries GCA-1 - The NSI GCA-1 Aluminum Ground Clamp for 1/0 - 14 AWG Aluminum and Copper Cables grips on water pipes, galvanized pipe or steel conduit between 1/2" to 1" IPS pipes. The high-strength extruded aluminum alloy design is plated to provide low-contact resistance and features zinc-plated steel set screws for long-term installation. Use this adjustable clamp to ground copper or aluminum cables to pipes and conduit in indoor environments. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.
NSI Industries

GCA-1

UPC: 662381010001

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Overview

The NSI Industries GCA-1 Aluminum Ground Clamp is a dual-rated grounding solution engineered for secure, low-resistance connections between aluminum or copper cables (1/0 to 14 AWG) and metallic pipes or conduits (1/2" to 1" IPS). Constructed from high-strength extruded aluminum alloy with zinc-plated steel set screws, this clamp delivers reliable performance in indoor environments where electrical safety and compliance are critical. The clamp’s adjustable design accommodates a wide range of wire sizes and pipe diameters, eliminating the need for multiple part numbers while ensuring a tight, corrosion-resistant grip. UL 467 Listed for Grounding and Bonding, the GCA-1 meets stringent industry standards for electrical safety, making it ideal for grounding water pipes, galvanized pipes, or steel conduits in commercial, industrial, and residential installations. The zinc-plated steel set screws provide long-term clamping force, preventing loosening due to vibration or thermal cycling. With a compact footprint measuring 2.26" in length, 0.685" in width, and 1.67" in height, the GCA-1 integrates seamlessly into tight spaces while offering exceptional durability. Trust NSI Industries, a leader in grounding and bonding solutions, to deliver components that professionals rely on for dependable, code-compliant electrical systems.
  • Range of Sizes: GCA-1 clamp fits pipes between 1/2" to 1" in diameter and the adjustable aluminum set screw grounding hole fits 1/0 - 14 AWG cables
  • Aluminum and Steel: The clamp is made from high-strength extruded aluminum, while the tightening screws are made from zinc-plated steel, both of which provide durable long-term use
  • Range of Applications: The simple design of this clamp is built to grip water pipes, galvanized pipes or steel conduits, allowing for greater installation flexibility
  • UL Listed: The reliable NSI grounding and bonding products meet or exceed UL 467 performance standards for grounding and bonding
  • Compact design (2.26" L x 0.685" W x 1.67" H) for tight spaces

Specifications

Application
Grounding Wire
Clamp Material
1/0-14 AWG
Insulation Material
Aluminum
Special Features
1/2-1 Pipe Size - Dual Rated Ground Clamp - Zinc Plated Screws IN
Standard
cULus
Type
Aluminum Ground Clamp
Warranty
1 Year
Package Dimensions (L x W x H)
2.26 IN x 0.685 IN x 1.67 IN
Package Dimensions (L x W x H)
5.7404 cm x 17.399 mm x 4.2418 cm
Package Weight (Imperial)
0.190 L
Package Weight (Metric)
0.086 kg
The NSI GCA-4 Aluminum Ground Clamp for 250 MCM to 6 AWG Aluminum and Copper Cables grips on water pipes, galvanized pipe or steel conduit between 2-1/2" to 4" IPS pipes. The high-strength extruded aluminum alloy design is plated to provide low-contact resistance and features zinc-plated steel set screws for long-term installation. Use this adjustable clamp to ground copper or aluminum cables to pipes and conduit in indoor environments. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.

GCA-4

The NSI GCA-4 Aluminum Ground Clamp for 250 MCM to 6 AWG Aluminum and Copper Cables grips on water pipes, galvanized pipe or steel conduit between 2-1/2" to 4" IPS pipes. The high-strength extruded aluminum alloy design is plated to provide low-contact resistance and features zinc-plated steel set screws for long-term installation. Use this adjustable clamp to ground copper or aluminum cables to pipes and conduit in indoor environments. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.
The NSI GCA-2 Aluminum Ground Clamp for 250 MCM to 6 AWG Aluminum and Copper Cables grips on water pipes, galvanized pipe or steel conduit between 1-1/4" to 2" IPS pipes. The high-strength extruded aluminum alloy design is plated to provide low-contact resistance and features zinc-plated steel set screws for long-term installation. Use this adjustable clamp to ground copper or aluminum cables to pipes and conduit in indoor environments. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.

GCA-2

The NSI GCA-2 Aluminum Ground Clamp for 250 MCM to 6 AWG Aluminum and Copper Cables grips on water pipes, galvanized pipe or steel conduit between 1-1/4" to 2" IPS pipes. The high-strength extruded aluminum alloy design is plated to provide low-contact resistance and features zinc-plated steel set screws for long-term installation. Use this adjustable clamp to ground copper or aluminum cables to pipes and conduit in indoor environments. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.

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Tork offers a comprehensive range of technical support services, including 24/7 customer support, on-site service management, and a technical hotline network. With three advanced technical support centers and over 8,000 hours of technical training conducted annually, Tork ensures certified expertise across 25+ languages to assist customers effectively. Their commitment to service is reflected in a 98% Service Level Agreement compliance rate, providing reliable support for all operational needs.

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