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Mersen H076459 - Miniature Fuses Size 6.3x46 1000V 0.125A High Speed FA Clip Mounting
Mersen

H076459

Alternate Item Number: MI6FA100V0.125


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Specification Sheet

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Overview

Mersen H076459 Miniature Fuses (SKU: H076459) are high-speed, very fast-acting (FA) fuses designed for sensitive electronic components. Rated at 1000V and 0.125A, these 6.3x46mm fuses provide rapid overcurrent protection to prevent damage from short circuits and transient faults. Their compact clip-mount design ensures easy integration into industrial control panels, power supplies, and semiconductor protection circuits. With a very high breaking capacity, the H076459 safeguards semiconductor devices by interrupting fault currents before thermal or electrical damage occurs. Ideal for applications requiring precise fault detection, these fuses are widely used in power electronics, motor drives, and renewable energy systems where reliability and fast response are critical. The FA designation indicates response times faster than standard fuses, making them suitable for protecting sensitive components like IGBTs, MOSFETs, and thyristors.
  • Very fast-acting (FA) design for rapid overcurrent protection
  • Rated 1000V and 0.125A for high-voltage applications
  • Clip-mount design for easy installation in control panels
  • High breaking capacity to prevent damage from fault currents
  • Compact 6.3x46mm size for space-constrained applications

Specifications

Current Rating
0.125 A
Mounting Type
Clip Mounting
Series
FA
Size
6.3x46
Voltage Rating
1000 V
Package Dimensions (L x W x H)
1.74 in x 0.25 in x 0.25 in
Package Dimensions (L x W x H)
44.1 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 H076459 fuse?

The H076459 fuse has a voltage rating of 1000V.

What is the current rating of the H076459 fuse?

The H076459 fuse is rated for 0.125A.

What does 'FA' mean in the fuse designation?

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

What are the dimensions of the H076459 fuse?

The fuse dimensions are 6.3x46mm.

What is the mounting type for the H076459 fuse?

The H076459 fuse uses a clip-mount design.

Does the H076459 fuse have a high breaking capacity?

Yes, the H076459 fuse is designed with a very high breaking capacity to interrupt fault currents effectively.

What applications are suitable for the H076459 fuse?

The H076459 fuse is suitable for protecting sensitive electronic components in industrial control panels, power supplies, and semiconductor circuits.

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.