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MERSEN FUSE 6,900 CP GR 10.38 0012.5 C1014578

MERSEN FUSE 6,900 CP GR 10.38 0012.5 C1014578

Fast-acting gR-class cylindrical fuse for semiconductor protection with 12.5A rating and 690V AC IEC compliance.

SKU: FR10GR69V12.5Alt SKU: FR10GR69V12.5MPN: C1014578
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List Price £8.40 ex VAT
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Sold in packs of 10

£8.40

Why Choose the Mersen FR10GR69V12.5 Protistor® High-Speed Fuse?

The Mersen FR10GR69V12.5 is a premium Protistor® high-speed cylindrical semiconductor fuse engineered to provide rapid and reliable protection for sensitive power semiconductor devices. Designed for demanding industrial applications, it offers full-range gR protection for semiconductor circuits, helping to minimise equipment damage and reduce costly downtime.

Manufactured to IEC 60269-4 standards, the FR10GR69V12.5 features an international 10 × 38 mm cylindrical format, making it suitable for installation in compatible fuse holders worldwide. Its low I²t characteristics and extremely fast operating speed provide effective protection for modern power electronics and automation equipment.

With a 12.5 A current rating and a 690 V AC IEC voltage rating, this fuse is ideal for protecting inverters, UPS systems, variable speed drives and other semiconductor-based equipment operating in industrial environments.

Key Advantages

  • High-speed gR semiconductor protection fuse.
  • 12.5 A current rating for industrial power electronics.
  • 690 V AC IEC voltage rating.
  • Low I²t performance for enhanced semiconductor protection.
  • Current-limiting design reduces fault energy.
  • International 10 × 38 mm cylindrical format for worldwide compatibility.

Key Features

  • Mersen Protistor® semiconductor fuse series.
  • Catalogue number: FR10GR69V12.5.
  • 12.5 A rated current.
  • 690 V AC IEC rated voltage.
  • gR operating class providing full-range semiconductor protection.
  • 10 × 38 mm cylindrical body.
  • Extremely fast acting with low energy let-through.
  • Designed to IEC 60269-4 standards.

Reliable Semiconductor Protection

High-speed semiconductor fuses are designed to protect power electronic components including IGBTs, SCRs, thyristors, diodes and rectifiers from damaging short-circuit currents. Their exceptionally fast operating characteristics interrupt fault currents before semiconductor devices reach destructive thermal limits, extending equipment life and improving system reliability.

The Mersen Protistor® range is trusted worldwide by OEMs and industrial engineers for protecting variable speed drives, UPS systems, power converters and inverter technology where dependable semiconductor protection is essential.

Typical Applications

  • Variable frequency drives (VFDs).
  • Industrial inverters.
  • UPS systems.
  • Power converters.
  • Semiconductor protection circuits.
  • Industrial automation equipment.

Technical Specifications

Item number C1014578
Catalogue No FR10GR69V12.5
Description High-Speed Cylindrical Fuse Protistor® Size 10x38 gR 690VAC IEC 12.5A
EAN/UPC Code 3605340501001
Rated voltage AC IEC 690 V
Ampere Rating 12.5 A
RoHS Compliant Yes
AC or DC AC
Speed/Characteristic gR
Fuse Size 10x38
Mounting Clip
Clearing I2t At Rated Voltage 90 A²s
Melting I2t 11 A²s
AC Max I.R./Breaking Capacity I1: 160 kA
Connection/Terminal Material Silver-Plated Copper
Connection/Terminal Type Ferrule
Product Diameter 10.3 mm
Product Length 39.2 mm
Sell Pack Quantity 10 EA
Sell Pack Weight 0.08 kg
Sell Pack Width 55 mm
Sell Pack Length 80 mm
Sell Pack Height 15 mm
Product group Semiconductor Protection Fuses
Body/Insulating Material Ceramic
Product Weight 0.008 kg
Power Dissipation at Rated Current Value 2.8 W
HS Code 85361050
Country of Manufacture France
Fuse Type Semiconductor
Fuse Size 10x38 mm
Fuse Class gR
Voltage 690 V

Frequently Asked Questions

What is the Mersen FR10GR69V12.5 used for?

It is designed to provide full-range high-speed protection for semiconductor devices used in industrial power electronic equipment.

What is the current rating of this fuse?

The fuse has a 12.5 A current rating.

What voltage is this fuse designed for?

The FR10GR69V12.5 is rated for 690 V AC operation under IEC standards.

What does the gR operating class mean?

The gR classification provides full-range protection for semiconductor devices, protecting against both overload and short-circuit faults.

Where is this fuse commonly installed?

It is typically fitted in compatible fuse holders within variable speed drives, UPS systems, inverters and industrial power conversion equipment.

Trusted by Industrial Engineers Worldwide

Mersen Protistor® semiconductor fuses are recognised globally for delivering dependable high-speed protection for critical power electronic systems in demanding industrial environments.

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