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Mersen A079028 - Miniature Fuses Size 6.3x32 250V 0.5A Fast (F) HA 37 Clip Mounting
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Mersen A079028 Miniature Fuses Size 6.3x32 250V 0.5A Fast (F) HA 37 Clip Mounting

Alternate Item Number: MI6HA37F25V0.5


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Specification Sheet

Contact for Pricing

Minimum Qty: 50

Multiplier: 50

*Contact for lower quantities*

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The Mersen A079028 is a miniature fuse designed for semiconductor protection. It features a fast-acting (HA 37) characteristic, crucial for safeguarding sensitive electronic components like diodes, thyristors, and triacs from overcurrent and short circuits. This fuse operates at a 250V AC rating and has a 0.5A current rating, with a standard 6.3x32mm size for broad compatibility. The HA 37 speed/characteristic ensures rapid interruption within milliseconds of fault detection, minimizing thermal stress and potential damage to connected equipment. Its clip mounting design facilitates straightforward installation in compact assemblies and allows for tool-free replacement in field applications, reducing maintenance downtime. Built with high-quality materials, it offers high breaking capacity to prevent damage and enhance system longevity and reliability. This fuse is ideal for protecting converters and other electronic circuits where transient surges or short circuits could compromise system integrity. Each package contains 50 pieces. SKU: A079028.
  • Fast-acting (HA 37) for rapid overcurrent and short circuit protection
  • 250V AC voltage rating
  • 0.5A current rating
  • Standard 6.3x32mm size
  • Clip mounting for easy installation and replacement
  • Interrupting Characteristic: Fast-Acting (F) / HA 37
  • Mounting Type: Clip Mounting

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
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Frequently Asked Questions

What is the voltage rating of the A079028 fuse?

The A079028 fuse has a voltage rating of 250V AC.

What is the current rating of the A079028 fuse?

The fuse is rated for 0.5A current.

What fuse size does the A079028 use?

The A079028 uses a 6.3x32mm fuse size.

What is the fuse characteristic of the A079028?

The A079028 has a fast-acting (F) HA 37 characteristic.

What is the mounting type for the A079028 fuse?

The fuse uses clip mounting for installation.

What type of terminals does the A079028 fuse have?

The fuse has solder terminals in a right-angle configuration.

What applications is the A079028 fuse suitable for?

The fuse is suitable for protecting sensitive electronic circuits, control systems, and instrumentation.

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.