MERSEN FUSE 400V FA 2 A 6.32 MI6FA40V2

MERSEN FUSE 400V FA 2 A 6.32 MI6FA40V2

Mersen T084358 MI6FA40V2 high speed semiconductor miniature fuse rated at 2 A and 400 V AC, with a 6.3 x 32 mm cartridge format, clip mounting and 200 kA minimum breaking capacity.

SKU: T084358Alt SKU: MI6FA40V2MPN: T084358
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Why Choose the Mersen T084358 MI6FA40V2 High Speed Miniature Fuse?

The Mersen T084358 (MI6FA40V2) is a compact 6.3 × 32 mm high speed semiconductor miniature fuse designed to protect sensitive electronic components against damaging overcurrents and short circuits. Part of the Mersen FA/FB 400 V miniature fuse range, it provides very fast fault interruption for industrial electronics, power conversion equipment and automation systems.

With a rated current of 2 A and an IEC rated voltage of 400 V AC, the T084358 helps reduce the thermal and electrical energy transferred to semiconductor devices during a fault. Its very fast acting FA characteristic makes it particularly suitable for circuits where conventional general-purpose fuses may not operate quickly enough.

The fuse features a clip-mounted cartridge design and a minimum breaking capacity of 200 kA, providing dependable performance where high prospective fault currents may occur. Its compact format supports straightforward installation in compatible fuse holders used within industrial control panels and electronic equipment.

Key Advantages

  • High speed miniature fuse for sensitive semiconductor circuits.
  • 2 A rated current for electronic and industrial applications.
  • 400 V AC IEC rated voltage.
  • Very fast acting FA characteristic provides rapid fault interruption.
  • 200 kA minimum breaking capacity.
  • Compact 6.3 × 32 mm format for space-efficient installation.

Key Features

  • Mersen MI6FA40V2 miniature fuse.
  • Manufacturer item number: T084358.
  • 2 A rated current.
  • 400 V AC rated voltage.
  • High speed, very fast acting FA characteristic.
  • 6.3 × 32 mm miniature cartridge size.
  • Clip mounting for compatible fuse holders.
  • Designed for semiconductor and sensitive electronic protection.
  • Total clearing I²t of 1.9 A²s at rated voltage.
  • RoHS compliant.

Rapid Protection for Sensitive Semiconductor Devices

High speed fuses are engineered to disconnect fault currents before sensitive semiconductor components are exposed to excessive thermal energy. Their very fast operating characteristic helps limit component damage, reduce equipment downtime and improve the reliability of power electronic and automation systems.

The Mersen T084358 combines a compact cartridge design with a high breaking capacity, making it suitable for industrial control equipment, power supplies, converters and other electronic assemblies requiring dependable semiconductor protection.

Typical Applications

  • Semiconductor protection circuits.
  • Industrial automation equipment.
  • Electronic power supplies.
  • Power converters and control systems.
  • Instrumentation and measuring equipment.
  • OEM electrical and electronic assemblies.

Technical Specifications

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Current 2 A
Voltage 400 V
Device Type Fuse link
Fuse Type Miniature, Semiconductor
Fuse Size 6.3x32 mm
Fuse Class Fast acting
Manufacturer Mersen
Series Semiconductor Miniature Fuses Size 6.3 × 32 FA/FB 400 V
Model MI6FA40V2
Item number T084358
Product type High speed semiconductor miniature fuse
Rated current 2 A
Rated voltage 400 V AC IEC
Current type AC
Operating characteristic Very fast acting (FA)
Fuse size 6.3 × 32 mm
Mounting type Clip mounting
Minimum breaking capacity 200 kA
Pre-arcing I²t 0.81 A²s
Total clearing I²t at rated voltage 1.9 A²s
EAN / UPC 3605340062434
RoHS compliant Yes

Frequently Asked Questions

What is the Mersen T084358 used for?

The Mersen T084358 is used to provide very fast overcurrent and short-circuit protection for semiconductor devices and sensitive electronic circuits.

What is the current rating of the Mersen T084358?

The fuse has a rated current of 2 A.

What voltage is the T084358 rated for?

The Mersen T084358 has an IEC rated voltage of 400 V AC.

What does the FA characteristic mean?

FA identifies the fuse as a very fast acting device designed to interrupt damaging fault currents rapidly and protect sensitive semiconductor components.

How is the Mersen T084358 installed?

The 6.3 × 32 mm cartridge fuse is designed for clip mounting within a compatible fuse holder or electronic assembly.

Trusted by Electronics and Automation Engineers Worldwide

Mersen semiconductor miniature fuses are used by automation engineers, equipment manufacturers and electronics professionals to provide dependable high speed protection for sensitive industrial and electronic systems.