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Mersen Q076466 - Miniature Fuses Size 6.3x46 1000V 0.63A High Speed FA Clip Mounting
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Mersen Q076466 Miniature Fuses Size 6.3x46 1000V 0.63A High Speed FA Clip Mounting

Alternate Item Number: MI6FA100V0.63


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Specification Sheet

Contact for Pricing

Minimum Qty: 10

Multiplier: 10

*Contact for lower quantities*

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

Overview

Mersen Miniature Fuse Q076466 (6.3x46mm, 1000V, 0.63A) is a very fast-acting (FA) fuse designed for semiconductor protection in sensitive electronic circuits. This fuse provides precise overcurrent and short-circuit interruption for converters, diodes, thyristors, triacs, and other semiconductor devices where rapid response is critical to prevent damage. The 6.3x46mm cylindrical body fits standard clip mounting, ensuring compatibility with industrial control panels, motor drives, and renewable energy inverters. With a 1000V voltage rating, it supports high-energy systems while maintaining a compact footprint. The FA series offers a rated breaking capacity of 30kA AC, minimizing arc faults and extending equipment lifespan. Ideal for applications requiring fast-acting fault isolation, such as IGBT protection, DC link circuits, and high-frequency switching power supplies. Supplied in boxes of 10 units, each fuse weighs 2.5g and operates within an ampere range of 0.1A to 1A. Built to Mersen’s industrial standards, this fuse delivers reliable performance in harsh electrical environments.
  • 6.3x46mm cylindrical body with clip mounting compatibility
  • 1000V voltage rating for high-energy systems
  • 0.63A ampere rating within 0.1A–1A range
  • Very fast-acting (FA) design for semiconductor protection
  • 30kA rated breaking capacity AC, 2.5g weight, box of 10 units

Specifications

Current Rating
0.63 A
Mounting Type
Clip Mounting
Series
FA
Size
6.3x46 mm
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

Are these fuses UL/CSA recognized?

Yes, they are UL/CSA Recognized with the reference E76491.

What applications are these fuses suitable for?

They are suitable for the protection of converters with semiconductors, diodes, thyristors, and triacs.

What is the weight of each fuse?

Each fuse weighs approximately 2.5 grams.

How are these fuses packaged?

The fuses are packaged in boxes of 10 pieces.

What is the rated breaking capacity of these fuses?

The rated breaking capacity for AC is 30 kA.

What are the dimensions of these miniature fuses?

The fuses are 6x46mm in size.

What is the characteristic of these fuses?

These fuses have a very fast acting (FA) characteristic.

What is the ampere range for the 6x46 FA fuses?

The ampere range for these fuses is from 0.1A to 1A.

What is the rated voltage for the 6x46 FA fuses?

The rated voltage for these fuses is 1000V.

What is the primary function of these miniature fuses?

These fuses provide fast protection for sensitive electronic components, safeguarding semiconductor devices from overcurrent and short 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.