NSI Industries 4-350LL6 - 4 Port Heavy Duty Dual Rated Transformer Lug 350 MCM - 6 AWG Heavy Duty Dual Rated Transformer Lugs are versatile and reusable set screw connectors made from high strength 6061-T6 aluminum alloy for superior electrical and mechanical performance. Two set screws per wire hole ensure an exceptional connection. Electro-tin plated for low contact resistance. For use with copper or aluminum conductors. Mounting hole spacing is NEMA 1-3/4". Meets or exceeds ANSI C119.4 Class A. Rated 600V. Temperature rating 90 degrees C.
NSI Industries

4-350LL6

UPC: 662381027085

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Overview

The NSI Industries 4-350LL6 Heavy Duty Dual Rated Transformer Lug is a versatile, reusable set-screw connector engineered for superior electrical and mechanical performance in industrial and commercial transformer applications. Constructed from high-strength 6061-T6 aluminum alloy, this lug delivers exceptional durability and corrosion resistance while maintaining low contact resistance thanks to its electro-tin plating. Designed for dual-rated use with both copper and aluminum conductors ranging from 350 MCM to 6 AWG, the 4-350LL6 accommodates up to four conductors per lug, making it ideal for high-density wiring configurations. Key specifications include a maximum voltage rating of 600V, a temperature rating of 90°C, and compliance with ANSI C119.4 Class A standards. The lug features two set screws per wire hole for secure, vibration-resistant connections and NEMA 1-3/4" mounting hole spacing for compatibility with standard transformer panels. With a maximum torque value of 460 in-lbs and a hex wrench size of 3/8", installation is straightforward using common tools. The compact dimensions (3.87" length x 1.38" width x 1.25" height) and multiple mounting holes ensure flexible installation options in tight spaces. This transformer lug is UL 486A/B listed, meeting rigorous safety and performance standards for electrical connections. Its reusable design reduces inventory requirements and total cost of ownership, while the aluminum alloy construction provides superior thermal conductivity and mechanical strength compared to traditional copper lugs. Applications include transformer terminations, panelboard connections, and heavy-duty industrial wiring where reliable, high-current connections are critical. The 4-350LL6 is distributed by Gross Automation and manufactured by NSI Industries, a trusted name in electrical connectors since 1958.
  • Dual-rated for copper and aluminum conductors (350 MCM - 6 AWG)
  • Four conductor ports with two set screws per hole for secure connections
  • 600V max voltage, 90°C temperature rating, ANSI C119.4 Class A compliant
  • High-strength 6061-T6 aluminum alloy with electro-tin plating for low contact resistance
  • NEMA 1-3/4" mounting hole spacing, 460 in-lbs max torque, 3/8" hex wrench size

Specifications

Application
Wire Termination
Connection Type
Set Screw
Material
6061-T6 aluminum alloy
Mounting Type
Screw Mounting
Nema Rating
NEMA 1-3/4"
Poles
4 Port
Size
350 MCM - 6 AWG
Special Features
(4) 350 MCM-6 AWG
Type
Transformer Lug-Heavy Duty
Voltage Rating
600 V
Warranty
1 Year
Package Dimensions (L x W x H)
5.31 IN x 3.87 IN x 1.38 IN
Package Dimensions (L x W x H)
13.4874 cm x 9.8298 cm x 3.5052 cm
Package Weight (Imperial)
1.374 L
Package Weight (Metric)
0.623 kg
4 Port Dual Rated Transformer Lug 350 MCM - 6 AWG Aluminum Dual Rated Transformer Lugs are versatile and reuseable set screw connectors made of 6061T-6 aluminum alloy for superior electrical and mechanical performance. Two set screws per wire hole ensure an exceptional connection. Electro-tin plated for low resistance. For use with copper or aluminum conductors. Mounting hole spacing is NEMA 1-3/4". Meets or exceeds ANSI C119.4 Class A. Rated 600 Volts. Temperature Rating 90 degrees C.

4-350T3

4 Port Dual Rated Transformer Lug 350 MCM - 6 AWG Aluminum Dual Rated Transformer Lugs are versatile and reuseable set screw connectors made of 6061T-6 aluminum alloy for superior electrical and mechanical performance. Two set screws per wire hole ensure an exceptional connection. Electro-tin plated for low resistance. For use with copper or aluminum conductors. Mounting hole spacing is NEMA 1-3/4". Meets or exceeds ANSI C119.4 Class A. Rated 600 Volts. Temperature Rating 90 degrees C.
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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.

What are the key features of Tork products?

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.

What industries and applications are Tork products used for?

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.

What certifications and standards do Tork products comply with?

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.

How are Remke products typically installed?

Remke products are typically installed through a systematic process that includes site audits to verify proper wiring, followed by remote or on-site commissioning. This commissioning involves installation verification, programming, and communication testing to ensure the system operates reliably and meets design specifications.

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.