Mersen W200809 - DIN D0 Fuse-link Neozed gG Size D01 400VAC 250VDC 4A Color code Brown Packaging quantity 50
Mersen

W200809

Alternate Item Number: D01GG40V4


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Minimum Qty: 50

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Overview

The Mersen W200809 DIN D0 Neozed gG fuse-link (SKU: W200809) is a compact, high-performance protection device designed for low-voltage distribution systems. Rated at 400VAC and 250VDC, this 4A fuse-link provides reliable overcurrent and short-circuit protection in industrial and commercial applications. The gG (full-range) utilization category ensures it safely interrupts faults up to its nominal breaking capacity, safeguarding cables, power lines, and sensitive equipment from dynamic effects of high short-circuit currents. Engineered for the D01 size (E14 base), the W200809 features a brown color code for easy identification and is supplied in a 50-piece package for bulk installations. With a power dissipation of 1.6W at rated current, it maintains thermal stability while ensuring precise fault detection. The Neozed D0 system is IEC-compliant and optimized for low-voltage fuse applications, offering a modern alternative to traditional screw-type systems. Ideal for use in DIN-compliant distribution units where fuse-links are accessible to non-trained personnel, the W200809 combines safety, durability, and compliance with international standards. Its compact 6.6g design and 50-unit packaging make it a cost-effective solution for panel builders, OEMs, and maintenance teams requiring bulk fuse-link supplies.
  • Rated 400VAC / 250VDC for versatile low-voltage protection
  • 4A gG (full-range) utilization category for comprehensive fault interruption
  • Brown color-coded for easy identification in installations
  • Compact 6.6g design with 1.6W power dissipation at rated current
  • Supplied in 50-piece packaging for bulk industrial applications

Specifications

AC Voltage Rating
400 V
Amperage Rating
4 A
Application
House incoming units Meter distribution units Distribution cabinets Installation cabinets Fuse boxes
Body Material
Ceramic
Brand Name
Mersen
DC Voltage Rating
250 V
Interrupt Rating
50 kA
Mounting
Clip
Size
1.42 x 0.43 in
Size
36 x 11 mm
Special Features
Insulated body suitable for high mechanical and thermal impacts Top and bottom contacts made of nickel plated or silver plated copper alloy Safe cut-off short circuits and over currents due to special design of fuse element Clear indication of operation condition due to coloured indicator un top contact Low power dissipation Optimized size Resistant to aging
Standard
DIN VDE 0636-3
Sub Brand
Neozed®
Type
DIN LV Fuse-Links D0
Package Dimensions (L x W x H)
1.42 in x 0.43 in x 0.43 in
Package Dimensions (L x W x H)
36 mm x 11 mm x 11 mm
Package Weight (Imperial)
0.015 lb
Package Weight (Metric)
0.007 kg
DIN D0 Fuse-link Neozed gG Size D01 400VAC 250VDC 4A Color code Brown Packaging quantity 10

W200809J

DIN D0 Fuse-link Neozed gG Size D01 400VAC 250VDC 4A Color code Brown Packaging quantity 10
Littelfuse fast-acting French Cylindrical (gL-gG) fuses are used for the protection of cables against short circuits. Time-lag (aM) fuses are used for protection of motors.

CY14X51G6

Littelfuse fast-acting French Cylindrical (gL-gG) fuses are used for the protection of cables against short circuits. Time-lag (aM) fuses are used for protection of motors.

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.