Mersen Z084202 - Miniature Fuses Size 6.3x32 500V 0.25A High Speed FA Clip Mounting
Mersen

Z084202

Alternate Item Number: MI6FA50V0.25


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Specification Sheet

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Overview

Mersen Z084202 Miniature Fuses (6.3x32 mm, 500V, 0.25A) provide ultra-fast protection for sensitive semiconductor devices. Designed for clip mounting, these very fast-acting (FA) fuses safeguard against overcurrent and short circuits with high precision. Their compact 6.3x32 mm form factor fits tight spaces in power supplies, converters, and industrial control systems. Rated at 500V, they handle high-voltage applications while maintaining a breaking capacity sufficient for modern electronics. The FA design ensures rapid response to fault conditions, minimizing downtime and protecting downstream components like MOSFETs, IGBTs, and microcontrollers. Available in clip mounting configuration, these fuses integrate easily into DIN rail systems and other industrial enclosures. For applications requiring axial leads, Mersen offers alternative configurations. Built for reliability, these fuses deliver consistent performance in harsh environments where electrical noise and transient spikes are common.
  • Size 6.3x32 mm for compact installations
  • 500V rating for high-voltage applications
  • 0.25A current rating with very fast-acting (FA) response
  • Clip mounting for DIN rail and industrial enclosures
  • High breaking capacity protects sensitive electronics

Specifications

Package Dimensions (L x W x H)
1.26 in x 0.25 in x 0.25 in
Package Dimensions (L x W x H)
32 mm x 6.3 mm x 6.3 mm
Package Weight (Imperial)
0.0060 lb
Package Weight (Metric)
0.0020 kg

Frequently Asked Questions

What is the physical size of the fuse?

The fuse dimensions are 6.3 mm diameter by 32 mm length.

What is the current rating of this fuse?

The fuse has a current rating of 0.25 amperes.

What is the voltage rating of this fuse?

The fuse is rated for 500V maximum operating voltage.

Is this fuse suitable for semiconductor protection?

Yes, the very fast-acting design protects sensitive semiconductor devices from overcurrent and short circuits.

What mounting type does this fuse use?

The fuse uses clip mounting for secure attachment in industrial enclosures.

What does FA mean in the fuse specification?

FA stands for very fast-acting, indicating rapid response to overcurrent conditions.

Can this fuse be used in DIN rail systems?

Yes, the clip mounting design is compatible with standard DIN rail installations.

What is the breaking capacity of this fuse?

The fuse offers a high breaking capacity to safely interrupt fault currents.

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.