MERSEN FUSE 400V CP 8X31 GG 4A C/I FR8GG40V4I

MERSEN FUSE 400V CP 8X31 GG 4A C/I FR8GG40V4I

Mersen FR8GG40V4I 8 × 32 mm gG cylindrical fuse-link with visual indicator, rated at 4 A and 400 V AC for overload and short-circuit protection.

SKU: FR8GG40V4IAlt SKU: FR8GG40V4IMPN: X222959
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List Price £1.33 ex VAT
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Why Choose the Mersen FR8GG40V4I Cylindrical Fuse with Visual Indicator?

The Mersen FR8GG40V4I is a compact and dependable 8 × 32 mm gG cylindrical fuse-link with visual indicator, designed to protect cables, motors, low-voltage networks and industrial electrical equipment against overload and short-circuit currents. As part of the established Mersen FR8 gG fuse range, it provides reliable full-range protection for electrical distribution circuits and industrial applications.

Its gG operating characteristic enables the fuse to interrupt both sustained overload currents and high short-circuit currents up to its rated breaking capacity. The ceramic body and silver-plated copper ferrules provide effective thermal resistance, dependable electrical conductivity and consistent performance in control panels, distribution equipment and machinery.

With a rated current of 4 A, an IEC rated voltage of 400 V AC and a breaking capacity of 20 kA, the FR8GG40V4I is suitable for protecting low-current circuits in industrial and commercial installations. Its integrated visual indicator allows maintenance personnel to identify an operated fuse quickly during inspection and fault finding.

Key Advantages

  • Provides full-range protection against overloads and short circuits.
  • 4 A rated current for low-current electrical circuits.
  • 400 V AC IEC rated voltage.
  • Integrated visual indicator for rapid identification of an operated fuse.
  • Compact 8 × 32 mm cylindrical format.
  • Ceramic construction with silver-plated copper contacts for dependable performance.

Key Features

  • Mersen FR8 gG cylindrical fuse range.
  • 8 × 32 mm cylindrical fuse-link.
  • 4 A rated current.
  • 400 V AC rated voltage.
  • gG full-range fuse characteristic.
  • Integrated visual blown-fuse indicator.
  • High-strength ceramic insulating body.
  • Silver-plated copper ferrule contacts.

Reliable Circuit Protection with Visual Indication

The Mersen FR8GG40V4I protects cables, motors and low-voltage networks by limiting unacceptable overcurrents and interrupting short-circuit currents before serious damage can occur. Its gG characteristic provides full-range protection, helping reduce thermal and mechanical stress on downstream electrical equipment.

The integrated visual indicator provides a clear local indication when the fuse has operated. This helps engineers identify the affected circuit quickly, reduce diagnostic time and restore equipment operation efficiently following an electrical fault.

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 FR8GG40V4I
Manufacturer item number X222959
EAN / UPC 8430399007519
Product type Cylindrical fuse-link with visual indicator
Fuse characteristic gG
Rated current 4 A
Rated voltage 400 V AC
Breaking capacity 20 kA AC
Fuse size 8 × 32 mm
Indication system Yes
Indication type Visual indicator
Mounting type Clip mounting
Terminal type Ferrule
Terminal material Silver-plated copper
Body material Ceramic
Product diameter 8.5 mm
Product length 31.5 mm
Power dissipation at rated current 0.65 W
Product weight Approx. 4.4 g
RoHS compliant Yes
HS Code 85361010
Device Type Accessory
Fuse Type Cylindrical
Fuse Size 8x32 mm
Fuse Class gG

Frequently Asked Questions

What is the Mersen FR8GG40V4I used for?

The FR8GG40V4I protects cables, motors, low-voltage networks and electrical equipment against overload and short-circuit currents.

What does the gG fuse characteristic mean?

A gG fuse provides full-range protection against both overload currents and short-circuit faults, making it suitable for general electrical distribution applications.

What is the purpose of the visual indicator?

The integrated visual indicator shows when the fuse has operated, allowing maintenance personnel to identify a blown fuse quickly during inspection and fault finding.

What are the current and voltage ratings?

The Mersen FR8GG40V4I has a rated current of 4 A and a rated voltage of 400 V AC.

What fuse holder is compatible with the FR8GG40V4I?

This fuse is designed for installation in a compatible 8 × 32 mm cylindrical fuse holder, including suitable Mersen CMC8, CC8 or CCR fuse holders.

Trusted by Electrical Professionals Worldwide

Mersen gG cylindrical fuse-links are trusted by electrical contractors, panel builders and industrial engineers for dependable overcurrent protection, reliable fault interruption and clear fuse-status indication in demanding electrical systems.

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