MERSEN FUSE 400V CP 8X31 GG 12A S/I FR8GG40V12

MERSEN FUSE 400V CP 8X31 GG 12A S/I FR8GG40V12

Mersen FR8GG40V12 8 × 32 mm gG cylindrical fuse-link rated at 12 A and 400 V AC with a 20 kA breaking capacity for full-range overload and short-circuit protection.

SKU: FR8GG40V12Alt SKU: FR8GG40V12MPN: R216146
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Why Choose the Mersen FR8GG40V12 Cylindrical Fuse-Link?

The Mersen FR8GG40V12 is a compact gG cylindrical fuse-link designed to provide full-range protection against overloads and short circuits in low-voltage electrical systems. Part of the Mersen 8 × 32 mm ferrule fuse-link range, it is suitable for protecting cables, motors, control circuits and electrical equipment operating at voltages up to 400 V AC.

Its gG operating characteristic provides comprehensive protection across the fuse-link's full current range. This allows the FR8GG40V12 to interrupt both sustained overload currents and high short-circuit currents, helping prevent damage to conductors, switchgear and connected equipment.

With a rated current of 12 A, a compact 8 × 32 mm cylindrical format and a rated breaking capacity of 20 kA AC, the FR8GG40V12 is ideal for industrial control panels, machinery and low-voltage distribution equipment. Its ceramic body and silver-plated copper contacts provide dependable performance and long-term reliability.

Key Advantages

  • Provides full-range gG protection against overloads and short circuits.
  • 12 A rated current for industrial and commercial circuits.
  • 400 V AC rated voltage.
  • Compact 8 × 32 mm cylindrical format.
  • 20 kA AC breaking capacity for reliable fault interruption.
  • Current-limiting performance helps minimise equipment damage.
  • Ceramic body with silver-plated copper contacts.
  • Suitable for cables, motors and low-voltage networks.

Key Features

  • Mersen FR8GG40V12 cylindrical fuse-link.
  • gG full-range utilisation category.
  • 12 A rated current.
  • 400 V AC IEC rated voltage.
  • 8 × 32 mm fuse size.
  • 20 kA AC breaking capacity.
  • Clip-mounted ferrule installation.
  • Ceramic insulating body.
  • Silver-plated copper ferrule contacts.
  • RoHS-compliant construction.

Reliable Protection for Low-Voltage Electrical Circuits

The Mersen FR8GG40V12 limits and interrupts excessive currents before they can cause serious damage to cables, switchgear and connected electrical equipment. Its gG characteristic provides complete protection against both overload conditions and short-circuit faults.

Designed for dependable service in compact installations, this cylindrical fuse-link provides an effective protection solution for panel builders, machine manufacturers and maintenance engineers working with industrial control and low-voltage distribution systems.

Typical Applications

  • Industrial control panels.
  • Electrical distribution circuits.
  • Cable and conductor protection.
  • Control and instrumentation circuits.
  • Industrial machinery.
  • Automation equipment.
  • OEM machine-building applications.
  • Commercial electrical installations.

Technical Specifications

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Current 12 A
Voltage 400 V
Device Type Fuse link
Fuse Type Cylindrical
Fuse Size 8x32 mm
Fuse Class gG
Manufacturer Mersen
Series Ferrule Fuse-links 8 × 32 gG 400 VAC
Model FR8GG40V12
Mersen item number R216146
EAN / UPC 8430399007465
Product type Cylindrical fuse-link
Fuse characteristic gG full-range
Rated current 12 A
Rated voltage 400 V AC
Current type AC
Rated breaking capacity 20 kA AC
Fuse size 8 × 32 mm
Product diameter Approx. 8.4 mm
Product length Approx. 31.5 mm
Product weight Approx. 4.5 g
Power dissipation at rated current 1.3 W
Mounting Clip
Terminal type Ferrule
Terminal material Silver-plated copper
Body material Ceramic
RoHS compliant Yes
HS Code 85361050

Frequently Asked Questions

What is the Mersen FR8GG40V12 used for?

It provides full-range protection against overloads and short circuits for cables, motors, control circuits and low-voltage electrical equipment.

What does the gG fuse characteristic mean?

A gG fuse-link provides complete protection against both overload currents and short-circuit currents, making it suitable for general-purpose electrical circuit protection.

What is the current rating of the FR8GG40V12?

The Mersen FR8GG40V12 has a rated current of 12 A.

What size is this fuse-link?

The FR8GG40V12 is a compact 8 × 32 mm cylindrical ferrule fuse-link.

What is the breaking capacity of this fuse-link?

The FR8GG40V12 has a rated AC breaking capacity of 20 kA, allowing it to safely interrupt high prospective fault currents.

Trusted by Electrical Professionals Worldwide

Mersen cylindrical fuse-links are trusted by panel builders, OEM manufacturers and maintenance engineers for dependable overcurrent protection, effective current limitation and reliable long-term performance in industrial electrical systems.