NSI Industries UC-143 - The NSI UC-143 Bronze Heavy Duty U-Bolt Clamp is designed to grip rods and ground 3" IPS pipes in parallel or 90-degree positions with an easily adjusted, durably strong design. The high-copper-content alloy of the clamp provides excellent conductivity and heavy-duty strength, alongside the silicon bronze nuts and lockwashers. Use this U-bolt for demanding applications in harsh environments, including direct burial in earth or concrete. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.
NSI Industries

UC-143

UPC: 662381108197

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Overview

The NSI UC-143 Bronze Heavy Duty U-Bolt Clamp (SKU: UC-143) is a UL 467 listed grounding and bonding solution engineered for harsh environments. Constructed from high-copper-content silicon bronze alloy, this clamp delivers superior electrical conductivity and mechanical strength, making it ideal for grounding applications in parallel or 90-degree configurations. The adjustable U-bolt design accommodates 3" IPS pipes and 1/2" to 1" ground rods, with silicon bronze nuts and lockwashers ensuring corrosion-resistant, vibration-proof connections. Certified for direct burial in earth or concrete, the UC-143 meets the demands of utility, telecommunications, and industrial installations where reliability is critical. Its durable construction resists corrosion in wet or chemically aggressive environments, while the flexible clamping mechanism simplifies installation across varied pipe sizes. The UC-143 is specifically designed to grip rods and ground 3" IPS pipes securely, providing a strong, adjustable hold in demanding conditions. The high-copper-content alloy ensures excellent conductivity, while the silicon bronze nuts and lockwashers enhance durability and prevent loosening over time. With a UL 467 certification for grounding and bonding, this clamp is trusted for direct burial applications, making it a dependable choice for professionals requiring a robust, long-lasting solution. NSI Industries, a trusted manufacturer of grounding components, backs this product with a commitment to quality and compliance with industry standards. Choose the UC-143 for dependable performance in grounding and bonding applications where durability and conductivity are non-negotiable.
  • Heavy-Duty Strength: NSI bronze U-bolt clamps provide unmatched strength and durability when grounding rods to pipes in demanding environments
  • Range of Sizes: U-bolt clamps are available in sizes that fit ground rods from 1/2" to 1" in diameter and pipes from 1/4" to 3-1/2" in diameter for expanded versatility in the field
  • Parallel or 90 Degrees: Flexible design of the gripping jaws allow for the grounding rod to be attached in parallel, or at a 90-degree angle with the pipe
  • Direct Burial: Built with enough strength for the harshest environments, including direct burial in earth or concrete
  • Suitable for direct burial in earth or concrete

Specifications

Application
Grounding Wire
Clamp Material
250 MCM - 2/0 AWG
Insulation Material
Silicon Bronze
Material
Silicon Bronze with High-Copper-Content Alloy
Material
Bronze (high-copper-content alloy with silicon bronze nuts and lockwashers)
Material
Bronze (High-Copper-Content Alloy, Silicon Bronze Nuts and Lockwashers)
Material
Silicon Bronze
Series
UC
Series
UC Series
Size
3" IPS pipes, rods (parallel or 90-degree positions)
Size
3" IPS pipes, rods (size range not explicitly stated)
Size
3" IPS pipes
Size
3" IPS pipes, rods
Special Features
3 Pipe Size IN
Standard
UL467
Type
Heavy Duty Ground Connector For Parrallel Copper Cables
Warranty
1 Year
Package Dimensions (L x W x H)
1.453 IN x 4.568 IN x 5.652 IN
Package Dimensions (L x W x H)
3.6906 cm x 11.6027 cm x 14.3561 cm
Package Weight (Imperial)
1.852 L
Package Weight (Metric)
0.840 kg
The NSI UC-121 Bronze Heavy Duty U-Bolt Clamp is designed to grip rods and ground 1-1/4" IPS pipes in parallel or 90-degree positions with an easily adjusted, durably strong design. The high-copper-content alloy of the clamp provides excellent conductivity and heavy-duty strength, alongside the silicon bronze nuts and lockwashers. Use this U-bolt for demanding applications in harsh environments, including direct burial in earth or concrete. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.

UC-121

The NSI UC-121 Bronze Heavy Duty U-Bolt Clamp is designed to grip rods and ground 1-1/4" IPS pipes in parallel or 90-degree positions with an easily adjusted, durably strong design. The high-copper-content alloy of the clamp provides excellent conductivity and heavy-duty strength, alongside the silicon bronze nuts and lockwashers. Use this U-bolt for demanding applications in harsh environments, including direct burial in earth or concrete. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.
The NSI UC-127 Bronze Heavy Duty U-Bolt Clamp is designed to grip rods and ground 1-1/2" IPS pipes in parallel or 90-degree positions with an easily adjusted, durably strong design. The high-copper-content alloy of the clamp provides excellent conductivity and heavy-duty strength, alongside the silicon bronze nuts and lockwashers. Use this U-bolt for demanding applications in harsh environments, including direct burial in earth or concrete. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.

UC-127

The NSI UC-127 Bronze Heavy Duty U-Bolt Clamp is designed to grip rods and ground 1-1/2" IPS pipes in parallel or 90-degree positions with an easily adjusted, durably strong design. The high-copper-content alloy of the clamp provides excellent conductivity and heavy-duty strength, alongside the silicon bronze nuts and lockwashers. Use this U-bolt for demanding applications in harsh environments, including direct burial in earth or concrete. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.
The NSI UC-102 Bronze Heavy Duty U-Bolt Clamp is designed to grip 1/2" rods and ground 1/4" IPS pipes in parallel or 90-degree positions with an easily adjusted, durably strong design. The high-copper-content alloy of the clamp provides excellent conductivity and heavy-duty strength, alongside the silicon bronze nuts and lockwashers. Use this U-bolt for demanding applications in harsh environments, including direct burial in earth or concrete. Stock products you can rely on—stock NSI.

UC-102

The NSI UC-102 Bronze Heavy Duty U-Bolt Clamp is designed to grip 1/2" rods and ground 1/4" IPS pipes in parallel or 90-degree positions with an easily adjusted, durably strong design. The high-copper-content alloy of the clamp provides excellent conductivity and heavy-duty strength, alongside the silicon bronze nuts and lockwashers. Use this U-bolt for demanding applications in harsh environments, including direct burial in earth or concrete. Stock products you can rely on—stock NSI.
The NSI UC-148 Bronze Heavy Duty U-Bolt Clamp is designed to grip rods and ground 3-1/2" IPS pipes in parallel or 90-degree positions with an easily adjusted, durably strong design. The high-copper-content alloy of the clamp provides excellent conductivity and heavy-duty strength, alongside the silicon bronze nuts and lockwashers. Use this U-bolt for demanding applications in harsh environments, including direct burial in earth or concrete. Stock products you can rely on—stock NSI.

UC-148

The NSI UC-148 Bronze Heavy Duty U-Bolt Clamp is designed to grip rods and ground 3-1/2" IPS pipes in parallel or 90-degree positions with an easily adjusted, durably strong design. The high-copper-content alloy of the clamp provides excellent conductivity and heavy-duty strength, alongside the silicon bronze nuts and lockwashers. Use this U-bolt for demanding applications in harsh environments, including direct burial in earth or concrete. Stock products you can rely on—stock NSI.
The NSI UC-109 Bronze Heavy Duty U-Bolt Clamp is designed to grip 7/8" to 1" rods and ground 1/2" to 3/4" IPS pipes in parallel or 90-degree positions with an easily adjusted, durably strong design. The high-copper-content alloy of the clamp provides excellent conductivity and heavy-duty strength, alongside the silicon bronze nuts and lockwashers. Use this U-bolt for demanding applications in harsh environments, including direct burial in earth or concrete. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.

UC-109

The NSI UC-109 Bronze Heavy Duty U-Bolt Clamp is designed to grip 7/8" to 1" rods and ground 1/2" to 3/4" IPS pipes in parallel or 90-degree positions with an easily adjusted, durably strong design. The high-copper-content alloy of the clamp provides excellent conductivity and heavy-duty strength, alongside the silicon bronze nuts and lockwashers. Use this U-bolt for demanding applications in harsh environments, including direct burial in earth or concrete. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.
The NSI UC-115 Bronze Heavy Duty U-Bolt Clamp is designed to grip rods and ground 1" IPS pipes in parallel or 90-degree positions with an easily adjusted, durably strong design. The high-copper-content alloy of the clamp provides excellent conductivity and heavy-duty strength, alongside the silicon bronze nuts and lockwashers. Use this U-bolt for demanding applications in harsh environments, including direct burial in earth or concrete. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.

UC-115

The NSI UC-115 Bronze Heavy Duty U-Bolt Clamp is designed to grip rods and ground 1" IPS pipes in parallel or 90-degree positions with an easily adjusted, durably strong design. The high-copper-content alloy of the clamp provides excellent conductivity and heavy-duty strength, alongside the silicon bronze nuts and lockwashers. Use this U-bolt for demanding applications in harsh environments, including direct burial in earth or concrete. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.
The NSI UC-138 Bronze Heavy Duty U-Bolt Clamp is designed to grip rods and ground 2-1/2" IPS pipes in parallel or 90-degree positions with an easily adjusted, durably strong design. The high-copper-content alloy of the clamp provides excellent conductivity and heavy-duty strength, alongside the silicon bronze nuts and lockwashers. Use this U-bolt for demanding applications in harsh environments, including direct burial in earth or concrete. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.

UC-138

The NSI UC-138 Bronze Heavy Duty U-Bolt Clamp is designed to grip rods and ground 2-1/2" IPS pipes in parallel or 90-degree positions with an easily adjusted, durably strong design. The high-copper-content alloy of the clamp provides excellent conductivity and heavy-duty strength, alongside the silicon bronze nuts and lockwashers. Use this U-bolt for demanding applications in harsh environments, including direct burial in earth or concrete. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.
The NSI UC-215 Bronze Heavy Duty U-Bolt Clamp is designed to grip ground pipes with a 1" diameter in parallel or 90-degree positions with an easily adjusted, durably strong design. The high-copper-content alloy of the clamp provides excellent conductivity and heavy-duty strength, alongside the silicon bronze nuts and lockwashers. 200- series U-bolt clamps fit two individual conductors for grounding on the same pipe. Use this U-bolt for demanding applications in harsh environments, including direct burial in earth or concrete. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.

UC-215

The NSI UC-215 Bronze Heavy Duty U-Bolt Clamp is designed to grip ground pipes with a 1" diameter in parallel or 90-degree positions with an easily adjusted, durably strong design. The high-copper-content alloy of the clamp provides excellent conductivity and heavy-duty strength, alongside the silicon bronze nuts and lockwashers. 200- series U-bolt clamps fit two individual conductors for grounding on the same pipe. Use this U-bolt for demanding applications in harsh environments, including direct burial in earth or concrete. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.
The NSI UC-243 Bronze Heavy Duty U-Bolt Clamp is designed to grip ground pipes with a 3" diameter in parallel or 90-degree positions with an easily adjusted, durably strong design. The high-copper-content alloy of the clamp provides excellent conductivity and heavy-duty strength, alongside the silicon bronze nuts and lockwashers. 200- series U-bolt clamps fit two individual conductors for grounding on the same pipe. Use this U-bolt for demanding applications in harsh environments, including direct burial in earth or concrete. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.

UC-243

The NSI UC-243 Bronze Heavy Duty U-Bolt Clamp is designed to grip ground pipes with a 3" diameter in parallel or 90-degree positions with an easily adjusted, durably strong design. The high-copper-content alloy of the clamp provides excellent conductivity and heavy-duty strength, alongside the silicon bronze nuts and lockwashers. 200- series U-bolt clamps fit two individual conductors for grounding on the same pipe. Use this U-bolt for demanding applications in harsh environments, including direct burial in earth or concrete. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.
The NSI UC-233 Bronze Heavy Duty U-Bolt Clamp is designed to grip ground pipes with a 2" diameter in parallel or 90-degree positions with an easily adjusted, durably strong design. The high-copper-content alloy of the clamp provides excellent conductivity and heavy-duty strength, alongside the silicon bronze nuts and lockwashers. 200- series U-bolt clamps fit two individual conductors for grounding on the same pipe. Use this U-bolt for demanding applications in harsh environments, including direct burial in earth or concrete. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.

UC-233

The NSI UC-233 Bronze Heavy Duty U-Bolt Clamp is designed to grip ground pipes with a 2" diameter in parallel or 90-degree positions with an easily adjusted, durably strong design. The high-copper-content alloy of the clamp provides excellent conductivity and heavy-duty strength, alongside the silicon bronze nuts and lockwashers. 200- series U-bolt clamps fit two individual conductors for grounding on the same pipe. Use this U-bolt for demanding applications in harsh environments, including direct burial in earth or concrete. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.
The NSI UC-221 Bronze Heavy Duty U-Bolt Clamp is designed to grip ground pipes with a 1-1/4" diameter in parallel or 90-degree positions with an easily adjusted, durably strong design. The high-copper-content alloy of the clamp provides excellent conductivity and heavy-duty strength, alongside the silicon bronze nuts and lockwashers. 200- series U-bolt clamps fit two individual conductors for grounding on the same pipe. Use this U-bolt for demanding applications in harsh environments, including direct burial in earth or concrete. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.

UC-221

The NSI UC-221 Bronze Heavy Duty U-Bolt Clamp is designed to grip ground pipes with a 1-1/4" diameter in parallel or 90-degree positions with an easily adjusted, durably strong design. The high-copper-content alloy of the clamp provides excellent conductivity and heavy-duty strength, alongside the silicon bronze nuts and lockwashers. 200- series U-bolt clamps fit two individual conductors for grounding on the same pipe. Use this U-bolt for demanding applications in harsh environments, including direct burial in earth or concrete. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.
The NSI UC-315 Bronze Heavy Duty U-Bolt Clamp is designed to grip ground pipes with a 1" diameter in parallel or 90-degree positions with an easily adjusted, durably strong design. The high-copper-content alloy of the clamp provides excellent conductivity and heavy-duty strength, alongside the silicon bronze nuts and lockwashers. 300- series U-bolt clamps fit three individual conductors for grounding on the same pipe. Use this U-bolt for demanding applications in harsh environments, including direct burial in earth or concrete. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.

UC-315

The NSI UC-315 Bronze Heavy Duty U-Bolt Clamp is designed to grip ground pipes with a 1" diameter in parallel or 90-degree positions with an easily adjusted, durably strong design. The high-copper-content alloy of the clamp provides excellent conductivity and heavy-duty strength, alongside the silicon bronze nuts and lockwashers. 300- series U-bolt clamps fit three individual conductors for grounding on the same pipe. Use this U-bolt for demanding applications in harsh environments, including direct burial in earth or concrete. UL Listed 467 for Grounding and Bonding. Stock products you can rely on—stock NSI.

Frequently Asked Questions about NSI Industries

How are Tork products typically installed?

Tork products are typically installed by trained technicians who follow a comprehensive commissioning process. This includes verifying the work environment, conducting electrical installation checks, performing internal and external equipment inspections, powering on the system, and executing operational tests to ensure compatibility and reliability.

What environmental ratings do Tork products have?

Tork products are designed to meet various environmental ratings, including NEMA Type 4X and Type 6, which provide protection against corrosion, windblown dust, rain, and occasional temporary submersion. These ratings ensure that Tork products can withstand harsh industrial environments while maintaining operational integrity.

What communication protocols do Tork products support?

Tork products support a comprehensive range of communication protocols, including PROFIBUS DP V1, PROFINET with dual port, EtherNet/IP with dual port, CANopen, and Modbus RTU integrated as standard. These protocols facilitate flexible network integration and high-performance communication across various industrial automation systems.

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Tork products are designed with advanced features that enhance efficiency and reliability in industrial applications. Key features include integrated harmonics and EMC design for improved power quality, removable terminals for quick installation, and USB ports for easy troubleshooting. Additionally, Tork solutions emphasize user-friendly setup with application wizards and memory modules for convenient parameter management.

What are the main product lines offered by Tork?

Tork offers a diverse range of products primarily focused on industrial automation, including TORK® Photocontrols, lighting controls, and various electrical components such as enclosures, occupancy sensors, and grounding solutions. These products are designed to enhance efficiency and reliability in commercial and industrial applications.

What technical support does Tork offer?

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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Tork products are utilized across a variety of industries, including food processing, healthcare, hospitality, and manufacturing. They are designed for applications such as hand hygiene, surface cleaning, and dispensing solutions, ensuring efficiency and compliance in environments that require high standards of cleanliness and safety.

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Tork products comply with UL and cUL certifications, ensuring they meet rigorous safety and performance standards. Additionally, many models are designed to meet NEMA enclosure ratings, providing protection against environmental factors.

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What accessories are available for Remke products?

Remke offers a wide range of accessories for their products, including panel mounting kits, fuse holders for voltage inputs, ferrites for communication modules, and current transformers. These accessories enhance the functionality and protection of Remke's industrial automation solutions, ensuring reliable performance in various applications.