Why Choose the Mersen FR22GR69V135 Protistor® High-Speed Semiconductor Fuse?
The Mersen FR22GR69V135 is a premium Protistor® high-speed cylindrical semiconductor fuse engineered to provide rapid, full-range protection for sensitive power electronic equipment. Designed to comply with IEC 60269-1, IEC 60269-4 and recognised to UL 248-13, this gR characteristic fuse delivers reliable protection against both overloads and short-circuit faults while minimising let-through energy to safeguard valuable semiconductor devices.
Manufactured in a 22 × 58 mm cylindrical format, the FR22GR69V135 is rated at 135 A and 690 V AC (IEC) / 700 V AC (UL). It is ideally suited for protecting IGBTs, thyristors, SCRs, diodes and rectifiers in industrial drives, UPS systems, renewable energy installations and power conversion equipment.
Featuring a high interrupting capacity, low power loss and excellent cycling performance, the FR22GR69V135 is designed for demanding industrial environments where dependable semiconductor protection is essential. This version is supplied without a striker indicator.
Key Advantages
- High-speed gR full-range semiconductor protection.
- 135 A rated current.
- 690 V AC IEC / 700 V AC UL voltage rating.
- Protects against both overloads and short-circuit faults.
- High interrupting capacity for demanding industrial applications.
- Low let-through energy helps protect expensive semiconductor devices.
- Compact 22 × 58 mm cylindrical design.
- Suitable for coordinated circuit protection systems.
Key Features
- Manufacturer: Mersen.
- Series: Protistor® Size 22 × 58 gR.
- Catalogue number: FR22GR69V135.
- Item number: H1018562.
- Rated current: 135 A.
- Rated voltage: 690 V AC IEC / 700 V AC UL.
- Fuse characteristic: gR.
- 22 × 58 mm cylindrical body.
- Current-limiting design.
- RoHS and REACH compliant.
Engineered for Critical Semiconductor Protection
The Protistor® 22 × 58 mm gR range is specifically designed to protect modern semiconductor devices from damaging fault currents. The gR operating characteristic provides full-range protection, enabling the fuse to clear overloads and high fault currents while reducing thermal stress on critical components.
Its current-limiting design helps minimise fault energy, improving equipment reliability and reducing maintenance costs in demanding industrial applications.
Typical Applications
- Variable speed drives.
- Industrial inverters.
- UPS systems.
- Power converters.
- Motor drives.
- Semiconductor power supplies.
- Renewable energy systems.
- Industrial automation equipment.
