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MERSEN FUSE 6,900 CP GR 22.58 0050 FR22GR69V50

MERSEN FUSE 6,900 CP GR 22.58 0050 FR22GR69V50

The FR22GR69V50 is a high-speed cylindrical fuse with a gR characteristic, rated at 690VAC and 50A, designed for semiconductor protection in industrial and power electronics applications.

SKU: FR22GR69V50Alt SKU: FR22GR69V50MPN: C1018557
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List Price £15.60 ex VAT
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Why Choose the Mersen FR22GR69V50 Protistor® High-Speed Fuse?

The Mersen FR22GR69V50 is a premium Protistor® high-speed cylindrical semiconductor fuse developed to provide dependable protection for sensitive power semiconductor devices in demanding industrial applications. Designed for full-range gR protection, it safeguards power electronics against both overloads and short circuits, helping reduce downtime while extending the service life of critical equipment.

Manufactured in compliance with IEC 60269-1 and IEC 60269-4, the FR22GR69V50 features a robust 22 × 58 mm cylindrical design with an exceptionally high breaking capacity. Its fast operating characteristics and low energy let-through make it an excellent choice for protecting IGBTs, SCRs, thyristors, diodes and rectifiers used in modern power conversion systems.

Rated at 50 A with a 690 V AC IEC voltage rating, this Protistor® fuse is ideally suited for industrial drives, UPS systems, renewable energy installations, power converters and other semiconductor-based equipment where reliable circuit protection is essential.

Key Advantages

  • High-speed gR semiconductor protection fuse.
  • 50 A current rating for industrial power electronics.
  • 690 V AC IEC rated voltage.
  • Full-range protection against overloads and short circuits.
  • Very high interrupting capacity for demanding industrial environments.
  • Standard 22 × 58 mm cylindrical format for easy installation.

Key Features

  • Mersen Protistor® semiconductor fuse series.
  • Catalogue number: FR22GR69V50.
  • 50 A rated current.
  • 690 V AC IEC rated voltage.
  • gR operating class providing full-range semiconductor protection.
  • 22 × 58 mm cylindrical ceramic body.
  • Extremely fast fault interruption with low I²t values.
  • Designed to IEC 60269-1 and IEC 60269-4 standards.

Reliable Semiconductor Protection

High-speed semiconductor fuses are specifically engineered to protect sensitive electronic components such as IGBTs, thyristors, rectifiers and diodes from destructive fault currents. Their rapid response limits thermal stress on semiconductor devices, reducing repair costs and improving overall system reliability.

The Mersen Protistor® range is widely used in industrial automation, renewable energy, UPS systems, motor drives and power conversion equipment where dependable semiconductor protection is critical for continuous operation.

Typical Applications

  • Variable frequency drives (VFDs).
  • Industrial inverters.
  • UPS systems.
  • Power converters.
  • Renewable energy equipment.
  • Industrial automation and control panels.

Technical Specifications

Item number C1018557
Catalogue No FR22GR69V50
Description High-Speed Cylindrical Fuse Protistor® Size 22x58 gR 690VAC IEC 50A
EAN/UPC Code 3605340513745
Rated voltage AC IEC 690 V
Ampere Rating 50 A
RoHS Compliant Yes
AC or DC AC
Speed/Characteristic gR
Fuse Size 22x58
Mounting Clip
Clearing I2t At Rated Voltage 2050 A²s
Melting I2t 292 A²s
AC Max I.R./Breaking Capacity I1: 160 kA
Connection/Terminal Material Silver-Plated Copper
Connection/Terminal Type Ferrule
Product Diameter 22.2 mm
Product Length 58 mm
Sell Pack Quantity 10 EA
Sell Pack Weight 0.6 kg
Sell Pack Width 111 mm
Sell Pack Length 117 mm
Sell Pack Height 23 mm
Product group Semiconductor Protection Fuses
Body/Insulating Material Ceramic
Product Weight 0.06 kg
Power Dissipation at Rated Current Value 11.8 W
HS Code 85361050
Country of Manufacture Tunisia
Fuse Type Semiconductor
Fuse Size 22x58 mm
Fuse Class gR
Voltage 690 V

Frequently Asked Questions

What is the Mersen FR22GR69V50 used for?

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

What is the current rating of this fuse?

The fuse has a 50 A current rating.

What voltage is this fuse rated for?

The FR22GR69V50 is rated for 690 V AC operation in accordance with IEC standards.

What does the gR operating class mean?

The gR operating class provides full-range protection against both overload and short-circuit faults for power semiconductor devices.

Where is this fuse commonly installed?

It is commonly installed in compatible fuse holders within motor drives, UPS systems, inverters, converters and industrial automation equipment.

Trusted by Industrial Engineers Worldwide

Mersen Protistor® semiconductor fuses are trusted worldwide for delivering reliable high-speed protection for critical industrial power electronic systems and automation equipment.

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