Mersen 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
Mersen

Y1023429

Alternate Item Number: BL1V403K000


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Specification Sheet

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Overview

The Mersen Y1023429 is a robust NH-vertical fuse rail system designed for secure and reliable electrical distribution. This 3-pole unit, specifically a Size 1 rail, is rated for 690VAC and a maximum current of 250A, making it suitable for demanding industrial applications. It is engineered for direct installation onto 185 mm bus bar systems, ensuring a compact and efficient setup. The BSL series fuse rails are touch-protected to IP20 standards, enhancing safety during installation and maintenance. This model features a V-terminal connection for cable sizes ranging from 35 to 240 mm², accommodating a wide range of conductor cross-sections. The modular design of the BSL system allows for flexible configuration and straightforward installation of individual components. Mersen's commitment to safety and usability is evident in the design, which provides a high degree of protection for personnel. This fuse rail is compliant with IEC/EN 60269-2 and VDE 0636-2 standards for NH fuse-links. The Y1023429 is manufactured in the US and distributed by Gross Automation, ensuring quality and accessibility. Its compatibility with 185 mm bus bar systems and the inclusion of Cage Clamp technology for cable termination highlight its practical application in power distribution panels and switchboards. The system is built for ease of use, enabling fast and simple installation processes while maintaining stringent safety protocols. Available accessories, such as phase barriers and protective covers, further enhance its versatility and safety features. This Mersen fuse rail is an integral part of a comprehensive low-voltage fuse system, offering dependable protection and performance.
  • Mersen Y1023429 NH-vertical fuse rail
  • Size 1, 250A, 690VAC, 3-Pole configuration
  • Designed for 185 mm bus bar systems
  • IP20 touch protected with Cage Clamp V-terminal
  • Compliant with IEC/EN 60269-2 and VDE 0636-2

Specifications

AC Voltage Rating
690 V
Amperage Rating
250 A
Application
Feeder pillarsCable distribution cabinetsLow voltage distribution units
Brand Name
Mersen
Connection
Cage Clamp
Connection Type
Cage Clamp with V-terminal
Current Rating
250A
IP Rating
IP20
Mounting
Bus bar system 185 mm
Mounting Type
Bus bar system
Number Of Poles
3
Poles
3-pole
Series
BSL
Size
4.84 x 3.86 x 21.97;122.936 x 98.044 x 558.038 in;mm
Size
NH1
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
Voltage Rating
690VAC
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)
8.157 lb
Package Weight (Metric)
3.700 kg
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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.