Mersen Z085444 - Miniature Fuses Size 6.3x32 500V 5A High Speed FA Clip Mounting
Mersen

Z085444

Alternate Item Number: MI6FA50V5


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Specification Sheet

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Overview

Mersen’s Z085444 Miniature Fuse (SKU: Z085444) is a high-speed FA (very fast-acting) fuse designed for sensitive electronic components. Rated at 500V and 5A, this 6.3x32mm fuse provides fast overcurrent and short-circuit protection to safeguard semiconductor devices, including transistors, diodes, and thyristors. Its FA design ensures rapid response to faults, minimizing damage and preventing cascading failures in power electronics. The fuse features a clip mounting design for secure installation in compact enclosures or PCB assemblies. With a high breaking capacity, it reliably interrupts fault currents to protect downstream components. Available in both clip-mount and axial lead configurations, the Z085444 offers versatility for diverse applications, including power supplies, motor drives, and industrial control systems. Built with high-quality materials, it delivers consistent performance in demanding environments where precision protection is critical.
  • Very fast-acting (FA) design for rapid fault response
  • 500V rated voltage, 5A current rating
  • Clip mounting for secure installation
  • High breaking capacity for reliable fault interruption
  • Available in axial lead configuration
  • Compact 6.3x32mm size for space-constrained applications

Specifications

Connection Type
clip mounting
Current Rating
5 A
Mounting Type
Clip Mounting
Series
FA
Size
6.3x32
Voltage Rating
500 V V
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 voltage rating of the Z085444 fuse?

The Z085444 fuse has a voltage rating of 500V.

What is the physical size of the Z085444 fuse?

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

What is the current rating of the Z085444 fuse?

The fuse has a current rating of 5A.

Is the Z085444 fuse suitable for semiconductor protection?

Yes, the FA design is specifically optimized for protecting sensitive semiconductor devices.

What mounting options are available for the Z085444?

The fuse is available with clip mounting and axial lead configurations.

What does FA mean for the Z085444 fuse?

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

Can the Z085444 fuse be used in power supplies?

Yes, its fast-acting design and high breaking capacity make it suitable for power supply applications.

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.