Mersen M079039 - Miniature Fuses Size 6.3x32 250V 10A Fast (F) HA 37 Clip Mounting
Mersen

M079039

Alternate Item Number: MI6HA37F25V10


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Specification Sheet

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Overview

Mersen’s Miniature Fuse (SKU: M079039) is a 6.3x32mm fast-acting fuse rated at 250V and 10A, designed for HA 37 clip mounting. These fuses provide rapid overcurrent protection for sensitive semiconductor devices, including transistors, diodes, and integrated circuits, preventing damage from transient faults or short circuits. The fast-acting (F) characteristic ensures quick response times, minimizing stress on protected components and reducing downtime in critical systems. The HA 37 designation indicates compliance with industry-standard fast-blow performance, making these fuses ideal for applications where rapid fault clearance is essential. The 6.3x32mm form factor is a common miniature fuse size, compatible with standard fuse holders and clips, ensuring easy integration into existing designs. With a maximum voltage rating of 250V, these fuses support low-voltage power distribution systems, control circuits, and instrumentation panels. Built for reliability, Mersen’s miniature fuses are constructed with high-quality materials to withstand mechanical stress and thermal cycling. Their compact size and clip mounting design simplify installation and replacement, reducing maintenance overhead. Typical applications include power supplies, telecom equipment, automotive electronics, and industrial control systems where precise overcurrent protection is required.
  • Fast-acting (F) HA 37 design for rapid overcurrent protection
  • Rated 250V, 10A with 6.3x32mm miniature form factor
  • HA 37 clip mounting for compatibility with standard fuse holders
  • Protects sensitive semiconductor devices from transient faults
  • Compact size for integration into low-voltage power systems

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 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.