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Mersen K084373 - Miniature Fuses Size 6.3x32 400V 16A High Speed FB Clip Mounting
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Mersen K084373 Miniature Fuses Size 6.3x32 400V 16A High Speed FB Clip Mounting

Alternate Item Number: MI6FB40V16


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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

Mersen Miniature Fuse (SKU: K084373) is a 6.3x32mm, 400V, 16A high-speed fuse designed for fast-acting overcurrent and short-circuit protection in sensitive electronic circuits. These fuses feature a very fast-acting (FA/FB) design, ensuring rapid response to fault conditions to safeguard semiconductor devices such as diodes, thyristors, triacs, and power converters. The compact 6.3x32mm form factor allows for efficient integration in control panels and power supplies where space is limited. With a voltage rating of 400V, these fuses support both AC and DC applications up to the specified voltage, providing reliable performance in demanding environments. The high breaking capacity prevents catastrophic failure during fault conditions, enhancing system longevity and reliability. Available with or without a trip indicator, these fuses are packaged in boxes of 10 or 50 pieces for convenience. UL/CSA Recognized (E76491), they meet rigorous safety standards for industrial and electronic applications.
  • 6.3x32mm miniature fuse for semiconductor protection
  • 400V rating supports AC and DC applications
  • 16A current rating with very fast-acting (FA/FB) response
  • Available with or without trip indicator
  • High breaking capacity prevents catastrophic failure during fault conditions
  • Breaking Capacity: High for reliable fault interruption
  • Optional Trip Indicator: Visual status confirmation available

Specifications

Connection Type
clip mounting
Current Rating
16 A
Material
High-quality materials
Mounting Type
Clip Mounting
Series
Miniature Fuses 6x32 FA/FB
Size
6.3x32
Voltage Rating
400 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
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Frequently Asked Questions

Are these fuses available with a trip indicator?

Yes, some references are available with or without a trip indicator.

Are these fuses available with a trip indicator?

Yes, some references are available with or without a trip indicator.

What is the voltage rating for these miniature fuses?

The miniature fuses have a rated voltage of 400V AC.

What is the voltage rating for these miniature fuses?

The miniature fuses have a rated voltage of 400V AC.

What is the ampere range available for the 6x32 FA/FB fuses?

The ampere range for these fuses is from 0.1A to 16A.

What is the ampere range available for the 6x32 FA/FB fuses?

The ampere range for these fuses is from 0.1A to 16A.

What are the typical applications for these semiconductor protection fuses?

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

What are the typical applications for these semiconductor protection fuses?

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

What is the primary function of Mersen's 6x32 FA/FB 400V fuses?

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

What is the primary function of Mersen's 6x32 FA/FB 400V 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.