Why Choose the Mersen FR22GR69V135T Protistor® High-Speed Semiconductor Fuse?
The Mersen FR22GR69V135T is a premium Protistor® high-speed cylindrical semiconductor fuse with striker indicator, designed to provide rapid, full-range protection for sensitive power electronic equipment. Manufactured in accordance with IEC 60269-1, IEC 60269-4 and recognised to UL 248-13, this gR characteristic fuse protects semiconductor devices against both overloads and short-circuit faults while minimising let-through energy to maximise equipment reliability. The integrated striker provides immediate mechanical blown-fuse indication and can be used with compatible signalling accessories.
Manufactured in a compact 22 × 58 mm cylindrical format, the FR22GR69V135T is rated at 135 A and 690 V AC (IEC) / 700 V AC (UL). It is ideal for protecting IGBTs, thyristors, SCRs, diodes and rectifiers installed in variable speed drives, UPS systems, industrial inverters, renewable energy equipment and power conversion systems.
With an extremely high interrupting capacity, excellent current-limiting performance and low power dissipation, the FR22GR69V135T delivers dependable semiconductor protection in demanding industrial environments where fast fault clearance is essential.
Key Advantages
- High-speed gR full-range semiconductor protection fuse.
- 135 A rated current.
- 690 V AC IEC / 700 V AC UL voltage rating.
- Integrated striker indicator for blown-fuse indication.
- 160 kA AC breaking capacity.
- Protects against overloads and short-circuit faults.
- Low let-through energy protects valuable semiconductor devices.
- Compact 22 × 58 mm cylindrical construction.
Key Features
- Manufacturer: Mersen.
- Series: Protistor® Size 22 × 58 gR.
- Catalogue number: FR22GR69V135T.
- Item number: H1018631.
- Rated current: 135 A.
- Rated voltage: 690 V AC IEC / 700 V AC UL.
- gR full-range operating characteristic.
- Integrated striker indicator.
- Current-limiting design.
- RoHS, REACH and UKCA compliant.
Designed for Critical Semiconductor Protection
The Protistor® 22 × 58 mm gR range has been developed specifically for protecting modern semiconductor devices against damaging fault currents. The gR operating characteristic provides comprehensive protection against both overloads and high prospective short-circuit currents, helping reduce thermal stress and extend the service life of expensive electronic components.
The integrated striker indicator enables rapid identification of an operated fuse and supports compatible signalling accessories, reducing maintenance time and improving equipment availability in industrial applications.
Typical Applications
- Variable speed drives.
- Industrial inverters.
- UPS systems.
- Power converters.
- Motor control equipment.
- Renewable energy systems.
- Semiconductor power supplies.
- Industrial automation equipment.
- Battery energy storage systems.
- OEM electrical machinery.
