ABB - Installation Products HLC3974P-1 - Hot Line Clamp, Bronze, Tin-Plated, Contax Filled, Front Tap - 9/16 nut. Conductor Ranges Main 400 KCMIL, Stranded - 6, Solid 185 - 16 sq mm, TAP 4/0 Stranded - 6 Solid 95 - 16 sq mm. TAP 3/0 - 6 ACSR
ABB - Installation Products

HLC3974P-1

UPC: 783786129348

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Overview

The ABB HLC3974P-1 Hot Line Clamp is a high-conductivity bronze clamp with tin-plated finish, designed for reliable electrical connections in overhead and underground distribution systems. Engineered for 400 KCMIL main conductors (stranded 6 AWG or solid 185–16 mm²) and 4/0 AWG tap conductors (stranded 6 AWG or solid 95–16 mm²), this clamp supports 3/0 AWG ACSR tap configurations. The front tap connection features a 9/16-inch nut for secure, tool-free installation in tight spaces. The contax-filled design ensures long-term corrosion resistance and stable electrical performance in harsh environments, including coastal or industrial areas with high humidity or chemical exposure. Compatible with both solid and stranded conductors, the HLC3974P-1 reduces installation time by eliminating the need for additional taping or potting compounds. Ideal for utility, renewable energy, and industrial applications where durable, low-maintenance connections are critical. The bronze material provides superior mechanical strength and thermal stability, while the tin plating enhances conductivity and prevents oxidation. This clamp meets utility-grade standards for mechanical and electrical performance, ensuring compliance with NEC and IEEE requirements for hot-line work.
  • Material: Bronze with tin-plated finish for corrosion resistance and conductivity
  • Main conductor range: 400 KCMIL (stranded 6 AWG, solid 185–16 mm²)
  • Tap conductor range: 4/0 AWG (stranded 6 AWG, solid 95–16 mm²) and 3/0 AWG ACSR
  • Front tap connection with 9/16-inch nut for secure, tool-free installation
  • Contax-filled design for long-term environmental protection

Specifications

Package Dimensions (L x W x H)
0.01 IN x 0.01 IN x 0.01 IN
Package Dimensions (L x W x H)
0.0254 cm x 0.0254 cm x 0.0254 cm
Package Weight (Imperial)
0.7400 L
Package Weight (Metric)
0.3360 kg
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IPCS7501

Insulation Piercing Connector 750 MCM - 3/0 AWG Insulation piercing connectors are made for use with copper-copper, copper to aluminum and aluminum to aluminum applications. They are safe to use and are completely insulated, no need to strip wire. They can be installed on energized conductors with no contact at any point. No spacer required between connections. Exclusive "turbo spacer" keeps tap side open while main conductor is being tightened. Watertight and corrosion-free.
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Frequently Asked Questions

Can the HLC3974P-1 be used with both solid and stranded conductors?

Yes, the clamp supports both solid and stranded conductors within the specified size ranges.

What conductor sizes does the HLC3974P-1 support?

The main conductor range is 400 KCMIL (stranded 6 AWG or solid 185–16 mm²), and the tap conductor range is 4/0 AWG (stranded 6 AWG or solid 95–16 mm²) with 3/0 AWG ACSR compatibility.

What is the material composition of the HLC3974P-1?

The clamp is made of bronze with a tin-plated finish for enhanced conductivity and corrosion resistance.

What type of connection does the HLC3974P-1 use?

The clamp features a front tap connection with a 9/16-inch nut for secure and tool-free installation.

Is the HLC3974P-1 suitable for outdoor installations?

Yes, the bronze material with tin plating and contax filling provides corrosion resistance, making it ideal for outdoor and harsh environments.

Frequently Asked Questions about ABB - Installation Products

What technical support does ABB - Installation Products offer?

ABB - Installation Products offers comprehensive technical support through a dedicated technical support hotline at 888-385-1221 (Option 1), available 7:00 a.m. - 5:00 p.m. CST, Monday-Friday. Their support services include emergency services, on-site support, remote diagnostics, installation assistance, equipment assessments, and repair coordination. Customers can also access technical resources via email at [email protected].

What are the main product lines offered by ABB - Installation Products?

ABB - Installation Products offers a comprehensive range of electrical distribution and protection solutions, including panelboards like ReliaGear® and ProLine, circuit monitoring systems, softstarters, and modular bus bar systems. Key product lines cover low voltage applications with specialized offerings such as the SMISSLINE TP flexible power distribution bus system, Ekip UP protection and metering relays, and enclosed/open softstarters for industrial and commercial sectors.

What are the key features of ABB - Installation Products products?

ABB - Installation Products feature advanced, user-friendly design elements optimized for industrial applications. Key features include 2-in-1 Push-in Spring connection technology allowing ferruled and rigid cable connections, tool-free mounting, robust vibration and shock-proof design, and front-accessible terminals. The products deliver high connection capacities up to 18.5 kW, support motor starting solutions, provide short-circuit fuseless protection to 100 kA, and enable faster, more intuitive installation with one-hand mounting and automated wiring capabilities.

What environmental ratings do ABB - Installation Products products have?

ABB - Installation Products offer robust environmental ratings across multiple standards, including IP54 to IP66 protection levels and NEMA Type 1 to Type 4X enclosures. These ratings ensure superior protection against dust, water, and corrosion for both indoor and outdoor industrial applications, with certifications that meet stringent environmental performance requirements.

What accessories are available for ABB - Installation Products products?

ABB - Installation Products offers a comprehensive range of accessories designed to enhance functionality and connectivity across industrial control systems. Key accessories include auxiliary contact blocks, signaling contacts, shunt trips, undervoltage releases, electronic timers, interlocks, interface relays, terminal blocks, and connection accessories. These accessories are compatible with SMISSLINE TP plug-in distribution systems and Unifix AD busbar systems, allowing for easy installation and configuration of manual motor starters, circuit breakers, and other electrical components.

What is ABB - Installation Products's warranty policy?

ABB - Installation Products offers a standard 1-year factory warranty for most installation products, with options to extend warranty coverage up to 5 years for specific product lines like low voltage circuit breakers. Extended warranty requires online registration through ABB's Extended Warranty Tool, which verifies product application and provides additional coverage for manufacturing defects and factory-mounted accessories.

What industries and applications are ABB - Installation Products products used for?

ABB - Installation Products serve critical electrical infrastructure needs across diverse industries including Energy, Manufacturing, Power Generation, HVAC, Marine, Food & Beverage, Mining, Pulp & Paper, Water Treatment, and Automotive. Their products cover essential applications such as switchgear, power distribution systems, circuit protection, digital control technologies, and drive systems, engineered for high-reliability environments with a strong emphasis on safety, efficiency, and sustainability.

What communication protocols do ABB - Installation Products products support?

ABB - Installation Products support a comprehensive range of industrial communication protocols, including Modbus RTU, PROFIBUS DP, PROFINET, EtherNet/IP, CANopen, DeviceNet, and IEC 61850. These protocols enable flexible connectivity across multiple industrial automation platforms, with high-speed data transmission capabilities up to 100 Mbps and support for various network topologies.

How are ABB - Installation Products products typically installed?

ABB - Installation Products are installed through a professional, systematic process emphasizing fast, intuitive wiring and tool-free mounting. Typical installation involves precise equipment verification, secure electrical connections, and comprehensive testing, including foundation frame assessment, busbar and cable connections, earthing system establishment, and thorough pre-commissioning functional tests to ensure optimal performance and reliability.

What certifications and standards do ABB - Installation Products products comply with?

ABB - Installation Products products meet rigorous international certifications including UL (United States), CSA (Canada), CE (European Community), UKCA (United Kingdom), EAC (Russia), and C-Tick (Australia & New Zealand). Our products comply with critical standards such as IEC 60947 series for low-voltage switchgear, functional safety standards EN 61800-5-2 and ISO 13849-1, ensuring high performance and reliability across industrial installation applications.