NSI Industries L400N - 2Hole Long Barrel Copper Compression Lug400 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

L400N

UPC: 662381035165

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Overview

The NSI Industries L400N is a high-conductivity copper compression lug designed for robust electrical connections. Manufactured from premium copper tubing, this long barrel lug ensures excellent conductivity and low contact resistance, critical for reliable power transmission. It features a tin plating for superior corrosion resistance, extending the lifespan of your electrical infrastructure. The L400N is engineered for 400 MCM conductors and accepts a 1/2" bolt size, providing a secure termination point. This lug is marked with a clear die index and color-coded for simplified identification and installation, reducing potential errors in the field. It is UL486A Listed as a wire connector and is rated for 600V, with a temperature rating of 90 °C. Crucially, the L400N is listed for 35KV maximum when properly installed according to cable manufacturer instructions, making it suitable for medium-voltage applications. For applications exceeding 2000V, consult the cable manufacturer's voltage stress relief instructions. The long barrel design offers increased conductor surface contact, enhancing the overall reliability and performance of the connection. This lug is manufactured in the USA, ensuring adherence to stringent quality standards. It is ideal for use in power distribution, industrial control systems, and other demanding electrical environments where a secure and durable connection is paramount. The L400N is a dependable choice for electricians and engineers seeking a high-quality copper compression lug for critical power applications.
  • Constructed from high-conductivity copper tubing for optimal electrical performance.
  • Tin-plated for enhanced corrosion resistance and low contact resistance.
  • Long barrel design ensures secure and reliable termination for 400 MCM conductors.
  • Accepts a 1/2" bolt size for versatile mounting options.
  • UL486A Listed wire connector, rated for 600V and 90°C, with 35KV maximum listing when properly installed.

Specifications

Application
Terminate, Splice, Tap Power Connectors
Cable Size
400 MCM (STR)
Color
Blue
Connection Type
Compression
Current Rating
400 A
Environmental Conditions
90 C
Finish
Tin Plated
Material
Copper
Mounting
1/2 Mounting Holes
Number Of Holes
2
Poles
2
Series
L400N
Size
L=5.47 - W=1.39 - OD=.950 - ID=.760
Size
400 MCM
Special Features
400 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
35 kV
Voltage Rating
600 V
Warranty
1 Year
Package Dimensions (L x W x H)
5.47 IN x 1.39 IN x 0.95 IN
Package Dimensions (L x W x H)
13.8938 cm x 3.5306 cm x 24.13 mm
Package Weight (Imperial)
2.700 L
Package Weight (Metric)
1.225 kg

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Frequently Asked Questions about NSI Industries

What technical support does NSi Industries offer?

NSi Industries offers dedicated technical support through their toll-free technical support line at 888.500.4598. They are committed to customer satisfaction and promise to make every reasonable effort to remedy any product or service issues. Additionally, customers can contact their customer service team at 800.321.5847 or email [email protected] for further technical assistance.

What are the key features of NSi Industries products?

NSi Industries products feature exceptional versatility, reliability, and safety across multiple industrial automation categories. Key features include insulation piercing connectors with no wire stripping required, watertight and corrosion-free designs, wide wire range compatibility (from #14 AWG to 750 MCM), and the ability to install on energized conductors. Their product lines like Easy-Tap™ Connectors and TORK® Digital Timers demonstrate advanced capabilities such as turbo spacers, double shear-head bolts, astronomic scheduling, and enhanced switching technologies.

What environmental ratings do NSi Industries products have?

NSi Industries enclosures feature robust environmental ratings, including IEC 60529 IP66 certification, NEMA Type 1, 2, 3, 4, 4X, 12, and 13 ratings, and UL/CSA standards. Their products are designed for both indoor and outdoor applications, with protection against dust, water, corrosion, and extreme temperatures ranging from -40°F to 266°F.

How are NSi Industries products typically installed?

NSi Industries products are typically installed using detailed mechanical and digital wiring diagrams that specify precise connection methods for various voltage configurations (120V, 208V, 240V, 277V, 480V). Installation involves carefully following product-specific wiring schematics, which include clear terminal block connections, ground wire specifications, and phase alignment requirements. Professional electricians and technicians should reference the specific product's wiring diagram to ensure correct installation and electrical compliance.

What industries and applications are NSi Industries products used for?

NSi Industries provides electrical and automation products for diverse industrial applications, including lighting control, electrical enclosures, wire management, connectors, and sensor technologies. Their product lines serve commercial, industrial, and infrastructure markets with solutions for electrical infrastructure, control systems, and safety-critical environments.

What are the main product lines offered by NSi Industries?

NSi Industries offers a comprehensive range of industrial products including TORK® Photocontrols, Polaris™ Lighting Controls, Easy-Twist™ Grounding Solutions, Miniterms, Cable Ties, Connectors, Enclosures, Occupancy Sensors, and Wire Management systems. Their product lines span electrical components, control devices, and industrial automation accessories designed for diverse applications in commercial and industrial settings.

What accessories are available for NSi Industries products?

NSi Industries offers a range of accessories for their product lines, including photocontrol accessories like replacement caps, mounting brackets, and receptacles. Specific accessories include shorting caps, open caps, 3-pin and 7-pin receptacles, and utility mounting brackets for conduit photocontrols. For specialized applications, NSi recommends contacting their customer service team to discuss custom accessory needs.