Mersen T200669 - 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 80 amps D03 Gauge Ring .
Mersen

T200669

Alternate Item Number: 4086500011155

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Minimum Qty: 20

Multiplier: 20

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Overview

The Mersen D03 Gauge Ring Fuse (SKU: T200669) is a critical component for low-voltage distribution units, specifically designed for applications where fuse-links are accessible to non-trained personnel. This modern screw system is engineered to operate reliably in 400VAC/250VDC networks, providing essential protection for cables, power lines, and electrical equipment. As part of the standardized D0 fuse range, which includes sizes D01, D02, and D03, this D03 variant ensures compatibility and adherence to industry standards. The gG rated fuse-links are designed to effectively limit and interrupt unacceptable overcurrents and short-circuit currents up to their nominal breaking capacity. Furthermore, they offer protection against the dynamic effects of high short-circuit currents, safeguarding installations and preventing damage. With a robust construction and a 400 Volt, 80 Amp rating, this D03 Gauge Ring fuse is an ideal choice for general applications requiring dependable overcurrent protection in industrial and commercial electrical systems. Its design prioritizes safety and operational continuity, making it a trusted solution for maintaining the integrity of electrical infrastructure. The Mersen D0 fuse system, including this D03 model, represents a commitment to reliable and accessible electrical protection.
  • Mersen D03 Gauge Ring Fuse for 400VAC/250VDC networks
  • 80 Amp current rating
  • Standardized D0 fuse size
  • gG fuse-link for general application protection
  • Protects cables, power lines, and equipment from overcurrents and short circuits

Specifications

Application
protection of cables and power lines
Brand Name
Ferraz Shawmut
Current Rating
80 A
Series
D0
Size
D03
Standard
DIN VDE 0636-301
Type
DIN LV Fuse-Links D0
Voltage Rating
400 VAC
Package Dimensions (L x W x H)
1.06 IN x 1.06 IN x 0.4 IN
Package Dimensions (L x W x H)
2.6924 cm x 2.6924 cm x 10.16 mm
Package Weight (Imperial)
0.010 L
Package Weight (Metric)
0.005 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

9F61BWW460

9F61 Size B Clips 1.6in

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.