Mersen J212505 - The D0 fuse-system is installed in low voltage ditribution units, where fuse-links are accessible to non trained persons and can also be replaced by them. The system is the most modern of the screw systems and designed for 400VAC/250VDC networks. The D0 fuse range comprises the standardized fuse sizes D01, D02 and D03. The range of applications for D0 fuse-links for general application is the protection of cables and power lines. They limit and cut off unacceptable overcurrents and short circuit currents up to their nominal breaking capacity. D0 fuse-links gG also protect equipments and installations against dynamic effects of high short circuit currents. Neozed Key
Mersen

J212505

Alternate Item Number: 4086500011186

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Overview

The Mersen D0 fuse-system (SKU: J212505) is a modern, screw-type fuse solution designed for low-voltage distribution units where fuse-links must be accessible and replaceable by non-trained personnel. This system is engineered for 400VAC/250VDC networks and accommodates standardized fuse sizes D01, D02, and D03, ensuring broad compatibility. The D0 fuse-links, available in gG (general application) and aM (motor protection) types, provide essential protection for cables, power lines, and equipment. They effectively limit and interrupt unacceptable overcurrents and short-circuit currents up to their nominal breaking capacity. Furthermore, D0 fuse-links with gG characteristics are designed to protect equipment and installations against the dynamic effects of high short-circuit currents. The D0 fuse-system features robust construction, including porcelain fuse-bases with touch protection (INNOZED® series) and screw caps with removal grips for safe handling. Available fuse-bases support DIN rail mounting and offer various connection options, including double function clamps for cable cross-sections from 1.5 to 35 mm². The system also includes accessories like wiring bars and end caps for flexible configuration in distribution units. Mersen's D0 system prioritizes safety and ease of use in demanding electrical environments.
  • Designed for low voltage distribution units with accessible fuse-links
  • Rated for 400VAC/250VDC networks
  • Supports standardized fuse sizes D01, D02, and D03
  • Provides protection against overcurrents and short-circuit currents
  • Features porcelain fuse-bases with touch protection (INNOZED®)

Specifications

Application
protection of cables and power lines
Brand Name
Ferraz Shawmut
Connection Type
Screw
Series
D0 Series
Size
D01, D02, D03
Standard
DIN VDE 0636-301
Type
DIN LV Fuse-Links D0
Voltage Rating
400 VAC
Voltage Rating
400VAC/250VDC
The D0 fuse-system is installed in low voltage ditribution units, where fuse-links are accessible to non trained persons and can also be replaced by them. The system is the most modern of the screw systems and designed for 400VAC/250VDC networks. The D0 fuse range comprises the standardized fuse sizes D01, D02 and D03. The range of applications for D0 fuse-links for general application is the protection of cables and power lines. They limit and cut off unacceptable overcurrents and short circuit currents up to their nominal breaking capacity. D0 fuse-links gG also protect equipments and installations against dynamic effects of high short circuit currents. 400 Volts 50 amps  D02 Gauge Ring .

R218630

The D0 fuse-system is installed in low voltage ditribution units, where fuse-links are accessible to non trained persons and can also be replaced by them. The system is the most modern of the screw systems and designed for 400VAC/250VDC networks. The D0 fuse range comprises the standardized fuse sizes D01, D02 and D03. The range of applications for D0 fuse-links for general application is the protection of cables and power lines. They limit and cut off unacceptable overcurrents and short circuit currents up to their nominal breaking capacity. D0 fuse-links gG also protect equipments and installations against dynamic effects of high short circuit currents. 400 Volts 50 amps D02 Gauge Ring .
The D0 fuse-system is installed in low voltage ditribution units, where fuse-links are accessible to non trained persons and can also be replaced by them. The system is the most modern of the screw systems and designed for 400VAC/250VDC networks. The D0 fuse range comprises the standardized fuse sizes D01, D02 and D03. The range of applications for D0 fuse-links for general application is the protection of cables and power lines. They limit and cut off unacceptable overcurrents and short circuit currents up to their nominal breaking capacity. D0 fuse-links gG also protect equipments and installations against dynamic effects of high short circuit currents. 400 Volts D01 locking screw cap (for industry only) .

P213062

The D0 fuse-system is installed in low voltage ditribution units, where fuse-links are accessible to non trained persons and can also be replaced by them. The system is the most modern of the screw systems and designed for 400VAC/250VDC networks. The D0 fuse range comprises the standardized fuse sizes D01, D02 and D03. The range of applications for D0 fuse-links for general application is the protection of cables and power lines. They limit and cut off unacceptable overcurrents and short circuit currents up to their nominal breaking capacity. D0 fuse-links gG also protect equipments and installations against dynamic effects of high short circuit currents. 400 Volts D01 locking screw cap (for industry only) .

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.