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NSI Industries L300N - 2Hole Long Barrel Copper Compression Lug300 MCM-1/2" Bolt Long Barrel Copper Compression Lugs is a type of copper compression connector that is produced from high conductivity copper tubing. They are tin-plated to provide corrosion resistance and are marked with die index and color coded for easy reference. Listed for 35KV maximum when properly installed.
NSI Industries

L300N

UPC: 662381035141


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Technical BulletinInstallation Instructions

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Multiplier: 12

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Overview

NSI Industries L300N 2Hole Long Barrel Copper Compression Lug300 MCM-1/2" Bolt is a high-performance copper compression connector engineered for heavy-duty electrical applications requiring reliable grounding and bonding. Manufactured from high-conductivity copper tubing and tin-plated to ensure low contact resistance and superior corrosion resistance, this lug is UL486A and UL467 listed for grounding and bonding applications (8 AWG - 3/0 AWG). The L300N supports wire ranges from 300 MCM to 1/2" bolt size, with a barrel inner diameter of 0.701" and outer diameter of 0.874". The long barrel design provides enhanced mechanical strength and electrical continuity, making it ideal for high-voltage installations up to 35KV when properly installed per cable manufacturer instructions. The connector features a 90°C temperature rating and 600V maximum voltage, ensuring compliance with NEC 310.15 standards. Color-coded and die-indexed for easy identification, the L300N includes a 1/2" bolt size with mounting hole spacing of 1.276" and a tang length of 1.969". Part numbers ending in "P" include a sight inspection hole for verifying cable insertion. NSI Industries, a US-based manufacturer, guarantees consistent quality and reliability for critical infrastructure projects, utility installations, and industrial electrical systems.
  • UL486A and UL467 listed for grounding and bonding (8 AWG - 3/0 AWG)
  • High-conductivity copper construction with tin-plating for corrosion resistance and low contact resistance
  • Supports wire range 300 MCM to 1/2" bolt size with 1/2" bolt diameter
  • Long barrel design for enhanced mechanical strength and electrical continuity
  • Rated for 35KV maximum when properly installed per cable manufacturer instructions

Specifications

Application
Terminate, Splice, Tap Power Connectors
Cable Size
300 MCM (STR)
Color
White
Connection Type
Compression Lug
Environmental Conditions
90 C
Finish
Tin Plated
Material
Copper
Mounting
1/2 Mounting Holes
Number Of Holes
2
Size
L=5.31 - W=1.19 - OD=.815 - ID=.657
Size
300 MCM
Special Features
300 MCM (STR) - 1/2 Mounting Holes - 1 3/4 Hole Spacing
Standard
UL486A/B
Stud Size
1/2 IN
Type
Long Barrel - Two Hole
Voltage Rating
600 V
Voltage Rating
35 kV
Warranty
1 Year
Package Dimensions (L x W x H)
5.31 IN x 1.19 IN x 0.81 IN
Package Dimensions (L x W x H)
13.4874 cm x 3.0226 cm x 20.574 mm
Package Weight (Imperial)
3.720 L
Package Weight (Metric)
1.687 kg
Mechanical Crimp Tool with 5/8 Inch Nose Die APPLICATIONS: Designed for use with wide range and H-Tap connectors. It has fiberglass handles and comes with "O" and "D" Nose Dies. It has an output of 4.5 tons.

OD581

Mechanical Crimp Tool with 5/8 Inch Nose Die APPLICATIONS: Designed for use with wide range and H-Tap connectors. It has fiberglass handles and comes with "O" and "D" Nose Dies. It has an output of 4.5 tons.
O' Die for OD581 Mechanical Crimp Tool

OJB

O' Die for OD581 Mechanical Crimp Tool
U-Type Compression Die - Pink 1/0 AWG Copper - 2 AWG Aluminum U-Shaped Compression Dies are for use with the NSi-12 Compression Tool and Other Tools. See Cross-Reference Chart below.

CD6A

U-Type Compression Die - Pink 1/0 AWG Copper - 2 AWG Aluminum U-Shaped Compression Dies are for use with the NSi-12 Compression Tool and Other Tools. See Cross-Reference Chart below.
U-Type Compression Die - Black 2/0 AWG Copper U-Shaped Compression Dies are for use with the NSi-12 Compression Tool and Other Tools. See Cross-Reference Chart below.

CD7

U-Type Compression Die - Black 2/0 AWG Copper U-Shaped Compression Dies are for use with the NSi-12 Compression Tool and Other Tools. See Cross-Reference Chart below.
Non-Insulated Parallel Splice Connector For Wire Range #4 AWG, Circular Mil Range 33,100-52,600, Length 0.531 Diameter 0.41, Nickel Plated

F4-PS-W-NP

Non-Insulated Parallel Splice Connector For Wire Range #4 AWG, Circular Mil Range 33,100-52,600, Length 0.531 Diameter 0.41, Nickel Plated
Power Distribution Block (1) 2/0-14 AWG Primary (6) 4-14 AWG Secondary Power Distribution Blocks are made of high strength, high-conductivity aluminum alloy and are mounted in a high-strength glass-filled polyester base. Each block can stand alone or combine with other blocks to form a multi-block set.

AS-K1-H6

Power Distribution Block (1) 2/0-14 AWG Primary (6) 4-14 AWG Secondary Power Distribution Blocks are made of high strength, high-conductivity aluminum alloy and are mounted in a high-strength glass-filled polyester base. Each block can stand alone or combine with other blocks to form a multi-block set.
PVC Coated Junction Box, 12 Inch X 12 Inch X 6 Inch, 14 Gauge, Gray

A1212SC-G

PVC Coated Junction Box, 12 Inch X 12 Inch X 6 Inch, 14 Gauge, Gray
Molded Junction Box, Length 4 Inch x Width 4 Inch x Depth 2 Inch, Material Polycarbonate, Color Gray

E989NNJ-5-HD

Molded Junction Box, Length 4 Inch x Width 4 Inch x Depth 2 Inch, Material Polycarbonate, Color Gray
Combine high performance with compact dimensions: - 1000 V AC / DC IEC 600 V UL, - Opt for the best marking visibility thanks to the up-front, flat marker zone, which lets you mark up to eight digits or increase the font size.

1SNK705010R0000

Combine high performance with compact dimensions: - 1000 V AC / DC IEC 600 V UL, - Opt for the best marking visibility thanks to the up-front, flat marker zone, which lets you mark up to eight digits or increase the font size.
Combine high performance with compact dimensions: - 1000 V AC / DC IEC 600 V UL, - Opt for the best marking visibility thanks to the up-front, flat marker zone, which lets you mark up to eight digits or increase the font size.

1SNK705030R0000

Combine high performance with compact dimensions: - 1000 V AC / DC IEC 600 V UL, - Opt for the best marking visibility thanks to the up-front, flat marker zone, which lets you mark up to eight digits or increase the font size.

How to Install the L300N Controller

This guide provides step-by-step instructions for installing and configuring the L300N Controller, including wiring and calibration procedures.

Estimated time: 45m

Tools needed:

Screwdriver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, Terminal connectors

  1. Select the appropriate connector

    Choose the correct lug or splice connector based on the size of the cable being installed, ensuring it matches the specifications provided in the connector chart.

  2. Prepare the conductor

    Carefully strip the insulation from the conductor without nicking the strands, ensuring the stripped length allows for complete insertion into the connector barrel. Clean the stripped portion with a wire brush to remove any oxide films.

  3. Insert and crimp the connector

    Insert the stripped conductor fully into the connector barrel. Use the appropriate crimp tool to secure the connection, ensuring that the crimp is performed at the designated markings on the barrel.

  4. Verify the connection

    Use a multimeter to check the continuity of the connection and ensure that it is secure and functioning properly.

  5. Calibrate the controller

    Follow the manufacturer's instructions to calibrate the L300N Controller, ensuring all settings are configured according to your specific application requirements.

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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.

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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.

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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.

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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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