MERSEN FUSE 690V CP 14X51 GG 12A S/I FR14GG69V12

MERSEN FUSE 690V CP 14X51 GG 12A S/I FR14GG69V12

Mersen FR14GG69V12 14 × 51 mm gG cylindrical fuse-link rated at 12 A and 690 V AC for full-range overload and short-circuit protection.

SKU: FR14GG69V12Alt SKU: FR14GG69V12MPN: L201812
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Why Choose the Mersen FR14GG69V12 Cylindrical Fuse-Link?

The Mersen FR14GG69V12 is a reliable gG cylindrical fuse-link designed to provide full-range protection against overload and short-circuit currents in industrial electrical distribution systems. Part of Mersen's established IEC cylindrical fuse range, it combines dependable current-limiting performance with a compact 14 × 51 mm format.

Its gG operating characteristic allows the FR14GG69V12 to protect cables, conductors, low-voltage networks and connected electrical equipment across the complete overcurrent range. During a fault, the fuse-link limits and interrupts excessive current, helping reduce thermal and mechanical stress on downstream components.

Rated at 12 A and 690 V AC, the FR14GG69V12 is suitable for electrical distribution circuits, industrial machinery, switchboards and automation panels. Its ceramic body and silver-plated contacts provide durable and consistent operation in demanding industrial environments.

Key Advantages

  • Full-range gG protection against overloads and short circuits.
  • 12 A rated current for industrial control and distribution circuits.
  • 690 V AC IEC rating for demanding low-voltage installations.
  • High breaking capacity for dependable interruption of severe fault currents.
  • Current-limiting performance helps minimise cable and equipment damage.
  • Compact 14 × 51 mm design saves space inside electrical panels.

Key Features

  • Mersen FR14GG cylindrical fuse-link series.
  • gG full-range fuse characteristic.
  • 12 A rated current.
  • 690 V AC rated voltage.
  • 14 × 51 mm cylindrical fuse size.
  • High current-limiting capability.
  • Robust ceramic insulating body.
  • Silver-plated contacts.
  • Ferrule-style terminal construction.
  • Suitable for compatible 14 × 51 mm cylindrical fuse holders.

Reliable Full-Range Circuit Protection

The Mersen FR14GG69V12 protects electrical installations by disconnecting unacceptable overload and short-circuit currents. Its gG classification means that it provides protection across the complete operating range, making it suitable for general industrial circuit protection.

During a high-current fault, the fuse-link's current-limiting action reduces the energy passed through to cables and connected equipment. This helps minimise thermal damage, mechanical stress and disruption within industrial power distribution and control systems.

Typical Applications

  • Industrial electrical distribution circuits.
  • Cable and conductor protection.
  • Low-voltage power networks.
  • Automation and control panels.
  • Industrial machinery and OEM equipment.
  • Switchboards and electrical distribution equipment.

Technical Specifications

Current 12 A
Voltage 690 V
Manufacturer Mersen
Series FR14GG
Model FR14GG69V12
Manufacturer item number L201812
Product type Cylindrical fuse-link
Fuse characteristic gG full range
Rated current 12 A
Rated voltage 690 V AC
Breaking capacity Up to 120 kA AC
Fuse size 14 × 51 mm
Nominal diameter 14 mm
Nominal length 51 mm
Indicator None
Terminal type Ferrule
Contact finish Silver-plated
Body material Ceramic
Mounting type Compatible cylindrical fuse holder
Application Cable, equipment and low-voltage network protection
Applicable standards IEC low-voltage fuse standards
HS Code 85361050
Country of Manufacture Tunisia
Device Type Fuse link
Fuse Type Cylindrical
Fuse Size 14x51 mm
Fuse Class gG

Frequently Asked Questions

What is the Mersen FR14GG69V12 used for?

It is used to protect cables, conductors and electrical equipment against overload and short-circuit currents in industrial low-voltage systems.

What does the gG fuse characteristic mean?

The gG classification identifies a full-range general-purpose fuse-link that protects against both overloads and short circuits.

What are the current and voltage ratings?

The FR14GG69V12 has a rated current of 12 A and a rated voltage of 690 V AC.

What size is the FR14GG69V12?

The fuse-link has a standard cylindrical size of 14 × 51 mm.

What fuse holder is required?

The FR14GG69V12 requires a compatible fuse holder designed for standard 14 × 51 mm cylindrical fuse-links.

Trusted by Electrical Professionals Worldwide

Mersen cylindrical fuse-links are trusted by electrical engineers, panel builders and equipment manufacturers for dependable full-range protection, effective current limitation and reliable operation in demanding industrial installations.

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