Mersen A1023431 - NH-vertical fuse rail BSL Size NH2 690VAC 400A 3-Pole Bus bar system 185 mm With cable connection Cage Clamp With V-terminal
Mersen

A1023431

Alternate Item Number: BL2V403K000


Documents & Media
Specification Sheet

Contact for Pricing

Overview

The Mersen BSL NH-vertical fuse rail system (SKU: A1023431) is a robust solution for direct installation onto bus bar systems in triple-pole arrangements. Designed for NH fuse-links compliant with IEC/EN 60269-2 and VDE 0636-2 standards, this Size 2 unit is rated for 400A and operates at up to 690VAC. It features a 185 mm bus bar system compatibility and includes a V-terminal for cable connections, accommodating conductor sizes from 35-240 mm². The BSL system is modular, allowing for the installation of individual components and offering users fast, easy installation with a high degree of protection during both installation and maintenance phases. Its touch-protected IP20 design ensures safety. This specific model, BL2V403K000, is part of a product range that includes Size 1 (250A) and Size 3 (630A) fuse rails, all designed for 185 mm bus bar systems. The V-terminal offers a secure and efficient connection point for power distribution applications where reliable fuse protection is paramount. Accessories such as cover shrouds (MZKAB, MZKHO, MZKAB1), labelling facilities (MZBC, MZBT), phase barriers (MZSTW1), and protective covers for fuse links (MZGLAD) are available to enhance the system's functionality and safety.
  • Mersen BSL NH-vertical fuse rail, Size 2
  • Rated for 400A and 690VAC
  • Designed for 185 mm bus bar systems
  • Features V-terminal for cable connection (35-240 mm²)
  • Touch-protected IP20 for enhanced safety

Specifications

AC Voltage Rating
690 V
Amperage Rating
400 A
Application
Feeder pillarsCable distribution cabinetsLow voltage distribution units
Brand Name
Mersen
Connection
Cage Clamp
Mounting
Bus bar system 185 mm
Number Of Poles
3
Size
4.84 x 3.86 x 21.97;122.936 x 98.044 x 558.038 in;mm
Special Features
Installation on to 185 mm bus bar systemDimensions of bus bars and cable terminal connections are equivalent to those of MULTIVERT®
Standard
IEC 60 269-1, IEC 60 269-2For NH-fuse links size 1, 2, 3 in accordance with IEC/EN 60 269-2, VDE 0636-2
Type
IEC NH Fuse Rails
Package Dimensions (L x W x H)
4.84 in x 3.86 in x 21.97 in
Package Dimensions (L x W x H)
122.936 mm x 98.044 mm x 558.038 mm
Package Weight (Imperial)
8.378 lb
Package Weight (Metric)
3.800 kg
NH-vertical fuse rail BSL Size NH1 690VAC 250A 3-Pole Bus bar system 185 mm With cable connection Cage Clamp With V-terminal

Y1023429

NH-vertical fuse rail BSL Size NH1 690VAC 250A 3-Pole Bus bar system 185 mm With cable connection Cage Clamp With V-terminal
Fuse base for fuses without a striker T2 3P 400A back plate mounted device

65011032

Fuse base for fuses without a striker T2 3P 400A back plate mounted device
NEMA power devices. GPC accessory kits. NEMA combo starters. FUSEHOLDER 3 POLE REJECTION.

3007N32P009

NEMA power devices. GPC accessory kits. NEMA combo starters. FUSEHOLDER 3 POLE REJECTION.
The Littelfuse 600 V in-line watertight fuse holders are the ideal answer for all high humidity and corrosive environments where fuses are required. Available in both breakaway and non-breakaway, single and double pole versions, these fuse holders allow maximum flexibility for any application.

LEXAA

The Littelfuse 600 V in-line watertight fuse holders are the ideal answer for all high humidity and corrosive environments where fuses are required. Available in both breakaway and non-breakaway, single and double pole versions, these fuse holders allow maximum flexibility for any application.
Fuse Holder, 600V Threaded

18880300002

Fuse Holder, 600V Threaded
Control Transformer Accessories - Secondary Fuse Kit 3

SFK3

Control Transformer Accessories - Secondary Fuse Kit 3

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.