Mersen A1204050 - Fuse-link gBAT 1500VDC Size 3L 450A With DIN Type Blades For Direct Mount
Mersen

A1204050

Alternate Item Number: 15NH3LGBAT450B


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Specification Sheet

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Overview

The Mersen A1204050 fuse-link gBAT is engineered for high-performance battery system protection in 1500VDC applications. This Size 3L fuse-link delivers full-range protection, safeguarding against both small overcurrents and high DC fault currents up to 150kA. Compliance with the IEC 60269-7 standard ensures reliable operation in battery energy storage systems, solar PV installations, and industrial DC power applications. The fuse-link features DIN type blades for direct mounting, eliminating the need for additional adapters. With a rated current of 450A and power dissipation of 14W, it balances thermal performance and compact design. The A1204050 is part of Mersen’s NH gBat series, specifically designed for battery protection across various voltage classes, including 1000VDC and 1500VDC configurations. Available in bolted or plain blade variants, it supports flexible installation in NH1XL, NH2XL, and NH3L fuse blocks. Mersen’s self-certified 1500VDC rating ensures compatibility with UL-recognized fuse blocks, providing a trusted solution for critical DC protection.
  • 1500VDC rated voltage for high-voltage DC systems
  • 450A rated current with 14W power dissipation
  • IEC 60269-7 compliant for battery protection
  • DIN type blades for direct mounting (Size 3L)
  • Up to 150kA breaking capacity for fault protection

Specifications

Amperage Rating
450 A
Application
Electrical energy storage Battery storage system Line protection between battery system and DC/DC converter or battery inverter DC grid protection
Brand Name
Mersen
Connection
DIN Type Blades
Connection Material
Silver-Plated Copper
Connection Type
DIN Type Blades
Current Rating
450 A
DC Voltage Rating
1500 V
Mounting
Direct Mount
Mounting Type
Direct Mount
Series
NH gBat
Size
8.07 x 2.76 x 2.91 in
Size
205 x 70 x 74 mm
Size
Size 3L
Special Features
Design for DC applications Full range breaking capacity Low watt losses Minimum breaking capacity 2IN High cycling performance High interrupting rating up to 150kA
Standard
IEC 60269-7 RoHS compliance
Type
Battery Energy Systems
Voltage Rating
1500 VDC
Package Dimensions (L x W x H)
8.07 in x 2.76 in x 2.91 in
Package Dimensions (L x W x H)
205 mm x 70 mm x 74 mm
Package Weight (Imperial)
4.365 lb
Package Weight (Metric)
1.980 kg
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POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.

LCC5

POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.
9F61 Size B Clips 1.6in

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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.