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Overview
- Single-pole neutral link for industrial power distribution
- Replaces Class H, K, and R fuses
- Rated for 600V and 400A
- Phenolic insulator and box connectors for secure connections
- Accommodates copper (1000 kcmil - 250 kcmil) and aluminum (1000 kcmil - 350 kcmil) conductors
- Connector torque: 600 in-lb (connector), 228 in-lb (fuse bolt)
- UL and CSA certified
- Manufactured in the USA
Specifications
Amperage Rating | 400 A |
Application | Used in place of a fuse |
Brand Name | Ferraz Shawmut |
Connection Type | Copper box connectors |
Connection Type | Box connectors and clips |
Connection Type | Box Connectors |
Connection Type | Copper box connectors and clips |
Current Rating | 400A |
Current Rating | 400 A |
Material | Copper, Phenolic |
Material | Copper |
Material | Phenolic, Copper |
Mounting Type | Screw (5/16" diameter) |
Mounting Type | Side-clip or In-line clip |
Mounting Type | 5/16" diameter screws |
Poles | 1P |
Poles | 1 |
Series | 34031T, 34051T |
Series | NLS |
Size | 1000 kcmil to 250 kcmil |
Size | 1000-250kcmil |
Type | Neutral Link |
Voltage Rating | 600 VAC |
Package Dimensions (L x W x H) | 11.625 IN x 1.62 IN x 0.25 IN |
Package Dimensions (L x W x H) | 29.5275 cm x 4.1148 cm x 6.35 mm |
Package Weight (Imperial) | 1.120 L |
Package Weight (Metric) | 0.508 kg |
Frequently Asked Questions
What is the voltage and current rating of the Mersen NLS400?
The Mersen NLS400 neutral link is rated for 600V and 400A.
What types of fuses can the NLS400 replace?
The NLS400 is designed to replace Class H, Class K, and Class R fuses.
What material are the connectors and clips made of?
The NLS400 features copper box connectors and clips.
Is the NLS400 suitable for use with aluminum conductors?
No, the NLS400 is designed for copper conductors only and meets 'no aluminum' specifications.
What is the insulator material used in the NLS400?
The NLS400 utilizes a durable phenolic insulator for electrical safety.
What wire range does the NLS400 accommodate?
The NLS400 accommodates wire ranges from 1000 kcmil to 250 kcmil for 400A applications.
Where is the Mersen NLS400 manufactured?
The Mersen NLS400 neutral link is manufactured in the USA.
What certifications does the NLS400 hold?
The NLS400 is UL-listed and CSA-certified.
Frequently Asked Questions about Mersen
What industries and applications are Mersen products used for?
Mersen products are used across diverse industrial sectors including solar power, electric vehicles, buildings/construction, industrial automation, power distribution, HVAC, elevators, telecommunications, and specialty manufacturing. Key application areas include circuit protection, surge protection, battery module protection, electrical safety systems, and power management for residential, commercial, and utility-scale installations.
What are the main product lines offered by Mersen?
Mersen offers five primary electrical power product lines: IEC and UL/CSA Fuses and Fusegear, Surge Protection, Low Voltage Disconnect Switches, Power Distribution Blocks, and Engineered Solutions. Their comprehensive range includes specialized components like high-speed fuses, modular fuse holders, surge arresters, and custom-engineered electrical protection systems for industrial and power management applications.
What are the key features of Mersen products?
Mersen products feature advanced electrical protection and power management solutions with key characteristics including finger-safe design, compact modularity, and high-performance safety features. Their product lines span electrical power components like fuses, surge protection, power distribution blocks, and specialized solutions for industrial, solar, and building applications. Critical features include UL/CSA approvals, high short-circuit current ratings, and innovative technologies like the Fuse Control™ program that minimize electrical risks and optimize system performance.
What environmental ratings do Mersen products have?
Mersen products meet rigorous environmental ratings across multiple standards, including UL 508A Type 1, 2, 3, 4, 4X, 12, and 13, CSA Type 1, 2, 3, 4, 4X, 12, and 13, and NEMA Type 1, 2, 3, 4, 4X, 12, and 13. They feature IEC 60529 IP66 protection, with enhanced UV inhibitors for outdoor weathering and operating temperatures ranging from -40°C to 130°C (-40°F to 266°F). These ratings ensure superior protection in wet, corrosive, and challenging industrial environments.
What accessories are available for Mersen products?
Mersen offers multiple accessories for their fuse blocks and systems, including safety pullers (DFC3M and DFC3LP), DIN-rail adapters (DRM), bus bars, auxiliary contacts, and specialized mounting hardware. Key accessories include the DFC3M safety puller for 1-1/2" x 13/32" midget or Class CC fuses, the DRM adapter for mounting 303 series fuse blocks on DIN-rail, and UltraSafe fuse module accessories like bus bars and auxiliary contacts that enable module interconnection and monitoring.
How are Mersen products typically installed?
Mersen products are typically installed in electrical distribution systems, control panels, and industrial automation environments using multiple mounting options. These include service entrance panel mounting, distribution panel installation, control panel DIN rail mounting, and custom engineered solutions like Fused Coordination Panelboards. Installation depends on the specific product type, such as fuses, surge protective devices, or switches, and is designed to provide electrical protection and circuit safety in various industrial and commercial applications.
What certifications and standards do Mersen products comply with?
Mersen products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Our products meet rigorous safety and performance standards for industrial applications across North America, China, Russia, and other global markets, ensuring compliance and reliability in electrical power and advanced materials solutions.
What technical support does Mersen offer?
Mersen provides comprehensive technical support through multiple channels, including technical experts located in your time zone who can assist with product selection, application guidance, and troubleshooting. Their Fuse Control™ program offers a free Fuse Inventory Audit & Analysis, and customers can access technical resources through their sales representatives and online platform ep.mersen.com.