MERSEN FUSE 400V CP 8X31 GG 4A S/I FR8GG40V4

MERSEN FUSE 400V CP 8X31 GG 4A S/I FR8GG40V4

Mersen FR8GG40V4 gG cylindrical fuse-link rated at 4 A and 400 V AC, designed to protect low-voltage electrical circuits, cables and industrial equipment against overloads and short circuits.

SKU: FR8GG40V4Alt SKU: FR8GG40V4MPN: W222958
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Why Choose the Mersen FR8GG40V4 Cylindrical Fuse?

The Mersen FR8GG40V4 is a compact and reliable gG cylindrical fuse-link designed to protect low-voltage electrical distribution circuits, cables and industrial equipment against overload and short-circuit currents. As part of the established Mersen FR8 fuse range, it provides dependable general-purpose circuit protection for control panels, machinery and electrical installations.

This fuse uses a full-range gG operating characteristic, enabling it to interrupt both sustained overloads and high short-circuit currents. Its ceramic body and silver-plated contacts are engineered to provide consistent electrical performance, effective heat resistance and reliable operation in demanding industrial environments.

With a rated current of 4 A, a rated voltage of 400 V AC and a compact 8 × 32 mm cylindrical format, the FR8GG40V4 is suitable for installation in compatible fuse holders within distribution boards, industrial control systems and OEM equipment.

Key Advantages

  • Full-range gG protection against overloads and short circuits.
  • 4 A current rating for low-current electrical circuits.
  • 400 V AC rated voltage for low-voltage installations.
  • Compact 8 × 32 mm cylindrical design.
  • Ceramic construction for dependable thermal and mechanical performance.
  • Suitable for protecting cables, equipment and electrical distribution circuits.

Key Features

  • Mersen FR8 gG cylindrical fuse range.
  • 4 A rated current.
  • 400 V AC rated voltage.
  • gG full-range utilisation category.
  • 8 × 32 mm cylindrical fuse-link format.
  • High-quality ceramic fuse body.
  • Silver-plated contacts for reliable electrical conductivity.
  • Designed for compatible cylindrical fuse holders.

Reliable Protection for Low-Voltage Electrical Circuits

The Mersen FR8GG40V4 limits and interrupts unacceptable overcurrents before they can cause serious damage to cables, equipment or electrical installations. Its gG time-current characteristic provides complete protection across the fuse's operating range, making it suitable for general-purpose low-voltage circuit protection.

The fuse also helps protect electrical equipment from the dynamic and thermal effects of high short-circuit currents. Its compact cylindrical construction enables efficient installation in space-conscious control panels, distribution assemblies and industrial machinery.

Typical Applications

  • Low-voltage electrical distribution circuits.
  • Industrial control panels.
  • Cable and conductor protection.
  • Distribution boards and switchgear.
  • OEM machinery and automation equipment.
  • Commercial and industrial electrical installations.

Technical Specifications

Current 4 A
Voltage 400 V
Manufacturer Mersen
Series FR8 gG
Model FR8GG40V4
Manufacturer reference W222958
Product type Cylindrical fuse-link
Fuse utilisation category gG
Rated current 4 A
Rated voltage 400 V AC
Breaking capacity 20 kA
Fuse size 8 × 32 mm
Body material Ceramic
Contact finish Silver-plated
Protection range Overload and short-circuit protection
Installation Compatible 8 × 32 mm cylindrical fuse holder
HS Code 85361010
Device Type Fuse link
Fuse Type Cylindrical
Fuse Size 8x32 mm
Fuse Class gG

Frequently Asked Questions

What is the Mersen FR8GG40V4 used for?

The FR8GG40V4 is used to protect low-voltage electrical circuits, cables and equipment against overload and short-circuit currents.

What does the gG fuse classification mean?

The gG classification identifies a full-range general-purpose fuse that provides protection against both overload currents and short circuits.

What is the current rating of the FR8GG40V4?

The Mersen FR8GG40V4 has a rated current of 4 A.

What voltage is this cylindrical fuse rated for?

The FR8GG40V4 is rated for operation at up to 400 V AC.

What fuse holder is compatible with the FR8GG40V4?

This fuse is designed for use with a compatible 8 × 32 mm cylindrical fuse holder.

Trusted by Electrical Professionals Worldwide

Mersen cylindrical fuse-links are trusted by electrical contractors, panel builders and industrial engineers for reliable overcurrent protection, consistent fault interruption and dependable performance in low-voltage electrical installations.

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