Mersen J214069 - 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 Locking Key.
Mersen

J214069

Alternate Item Number: 4086500011506

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Minimum Qty: 10

Multiplier: 10

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Overview

The Mersen D0 Fuse System (SKU: J214069) is a modern screw-type fuse solution engineered for low-voltage distribution units where non-trained personnel must safely replace fuse-links. Designed for 400VAC/250VDC networks, this system supports standardized D01, D02, and D03 fuse sizes, ensuring broad compatibility with existing infrastructure. The D0 system prioritizes user accessibility without sacrificing robust protection, making it ideal for industrial and commercial applications requiring rapid fuse replacement and minimal downtime. Key specifications include a 400V locking key for security, porcelain fuse-bases with removal grips, and touch-protected designs for enhanced safety. The system accommodates cable cross-sections from 1.5 to 35 mm², with rated currents up to 63A (D02) and 16A (D01). Available configurations include single, double, and triple pole designs, as well as combination units like the LINOCUR® D02 for integrated fuse-link and gauge piece assemblies. Accessories such as wiring bars, clamp straps, and locking caps (including EVU-authorized variants) further enhance functionality and compliance. Primary applications include protection of cables, power lines, and equipment in manufacturing plants, commercial buildings, and distribution networks. The gG-rated fuse-links provide comprehensive overcurrent and short-circuit protection, including defense against dynamic effects of high short-circuit currents. Mersen’s D0 system is distributed by Gross Automation and manufactured in the US, meeting IEC standards for low-voltage fuse systems.
  • Designed for 400VAC/250VDC networks with 400V locking key for security
  • Supports standardized D01 (16A), D02 (63A), and D03 fuse sizes
  • Accommodates cable cross-sections from 1.5 to 35 mm²
  • Available in single, double, and triple pole configurations
  • Includes touch-protected fuse-bases and porcelain construction

Specifications

Application
protection of cables and power lines
Brand Name
Ferraz Shawmut
Standard
DIN VDE 0636-301
Type
DIN LV Fuse-Links D0
Voltage Rating
400 VAC
Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount

GPM-SRR90

Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount
Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20

E1062696

Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20
Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20

C331156

Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20
Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8

1SCM8

Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8
9F61 Size B Clips 1.6in

9F61BWW460

9F61 Size B Clips 1.6in
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.

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.