MERSEN FUSE 500V FA 8 A 6.32 B085446

MERSEN FUSE 500V FA 8 A 6.32 B085446

Mersen B085446 MI6FA50V8 high-speed semiconductor miniature fuse rated at 8 A and 500 V AC with a 6.3 x 32 mm ceramic cartridge and 20 kA breaking capacity.

SKU: B085446MPN: B085446
Price
List Price £3.90 ex VAT
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Why Choose the Mersen B085446 MI6FA50V8 Miniature Fuse?

The Mersen B085446 MI6FA50V8 is a compact 8 A high-speed semiconductor miniature fuse designed to protect sensitive electronic components and power semiconductor devices against damaging overcurrents and short circuits. Part of Mersen's MI6FA 500 V fuse series, it delivers ultra-fast fault interruption in a standard 6.3 × 32 mm ceramic cartridge format.

Its high-speed FA operating characteristic rapidly interrupts fault currents, helping minimise the thermal energy transferred to vulnerable semiconductor components. This makes it ideal for converters, rectifiers, inverters, power supplies and industrial automation equipment where dependable semiconductor protection is essential.

Rated at 8 A and 500 V AC, the Mersen B085446 provides a high 20 kA breaking capacity. Its ceramic body, ferrule terminals and clip-mounted design ensure reliable performance in demanding industrial power electronic applications.

Key Advantages

  • High-speed semiconductor protection fuse.
  • 8 A rated current for power electronic circuits.
  • 500 V AC rated voltage.
  • Compact 6.3 × 32 mm cartridge format.
  • 20 kA breaking capacity for dependable fault interruption.
  • Designed to minimise thermal damage to semiconductor devices.

Key Features

  • Mersen MI6FA semiconductor miniature fuse series.
  • 8 A rated current.
  • 500 V AC rated voltage.
  • High-speed FA operating characteristic.
  • Standard 6.3 × 32 mm ceramic cartridge.
  • Clip-mounted installation.
  • Ceramic body with metal ferrule terminals.
  • Designed specifically for semiconductor protection.

Reliable High-Speed Protection for Sensitive Electronics

Power semiconductor devices can be permanently damaged by very short overcurrent events. The Mersen B085446 is engineered to interrupt fault currents rapidly, helping reduce the energy transferred to protected components and improving equipment reliability.

Its compact cartridge design makes it suitable for industrial control equipment, automation systems, converters and electronic assemblies where dependable semiconductor protection and efficient use of panel space are essential.

Typical Applications

  • Semiconductor device protection.
  • Industrial electronic power supplies.
  • Converters and rectifiers.
  • Automation and control systems.
  • Power electronic equipment.
  • OEM electronic assemblies.

Technical Specifications

Current 8 A
Voltage 500 V
Manufacturer Mersen
Series MI6FA 500 V
Catalogue number MI6FA50V8
Manufacturer part number B085446
Product type Semiconductor miniature fuse
Rated current 8 A
Rated voltage 500 V AC
Current type AC
Operating characteristic High speed FA
Fuse Size 6.3 × 32 mm
Breaking capacity 20 kA
Pre-arcing I²t 2 A²s
Clearing I²t at rated voltage 35 A²s
Mounting type Clip mounting
Connection type Ferrule
Body material Ceramic
EAN 3605340069617
UL recognition UL/CSA recognised
Compliance RoHS compliant
Device Type Fuse link
Fuse Type Miniature, Semiconductor
Fuse Size 6.3x32 mm

Frequently Asked Questions

What is the Mersen B085446 used for?

The Mersen B085446 is a high-speed semiconductor fuse designed to protect sensitive electronic components and power semiconductor devices against overcurrents and short circuits.

What is the current rating of the Mersen B085446?

The fuse has a rated current of 8 A.

What voltage is the Mersen B085446 rated for?

The fuse is rated for operation at up to 500 V AC.

What is the interrupting capacity of this fuse?

The Mersen B085446 provides a 20 kA breaking capacity for dependable short-circuit protection.

What size is the Mersen B085446?

The fuse uses the standard 6.3 × 32 mm ceramic cartridge format and is intended for clip mounting.

Trusted by Electronics and Automation Professionals

Mersen semiconductor miniature fuses are trusted worldwide by equipment manufacturers, panel builders and maintenance engineers for dependable high-speed protection of sensitive electronic and power semiconductor equipment.

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