Why Choose the Mersen FR22GR69V80T Protistor® Semiconductor Fuse?
The Mersen FR22GR69V80T, also identified by item number E1018628, is a high-speed Protistor® cylindrical semiconductor fuse designed to protect sensitive power semiconductor devices against damaging overload and short-circuit currents. As part of the Mersen Protistor® 22 × 58 mm gR series, it provides fast and dependable protection for industrial power-electronic systems operating at up to 690 V AC.
With a rated current of 80 A, a full-range gR operating characteristic and an exceptionally high 160 kA breaking capacity, the FR22GR69V80T can rapidly interrupt severe electrical faults while limiting the thermal energy transferred to valuable semiconductor components.
The fuse incorporates an integrated striker indicator, allowing compatible auxiliary contacts or monitoring systems to signal when the fuse has operated. Its compact ceramic body and standard 22 × 58 mm cylindrical format make it suitable for compatible fuse holders used in variable frequency drives, power converters, UPS equipment and industrial automation systems.
Key Advantages
- High-speed semiconductor protection fuse for industrial power electronics.
- 80 A rated current for demanding electrical applications.
- 690 V AC IEC rating for high-voltage industrial circuits.
- gR full-range characteristic protects against overloads and short circuits.
- Integrated striker indicator supports rapid fault identification.
- 160 kA breaking capacity for reliable interruption of high fault currents.
- Low I²t performance helps reduce stress on semiconductor components.
- Compact 22 × 58 mm cylindrical construction.
Key Features
- Mersen Protistor® 22 × 58 mm gR series.
- 80 A rated current.
- 690 V AC IEC rated voltage.
- gR full-range semiconductor protection.
- 160 kA AC breaking capacity.
- 1,240 A²s pre-arcing I²t.
- 7,600 A²s clearing I²t at rated voltage.
- Integrated striker indication system.
- Silver-plated copper ferrule terminals.
- Durable ceramic insulating body.
Reliable Protection for Industrial Power Electronics
The Mersen FR22GR69V80T is engineered to interrupt electrical faults before excessive thermal energy can damage costly semiconductor devices. Its high-speed, current-limiting operation helps protect IGBTs, thyristors, diodes, rectifiers and other power semiconductor components used in modern industrial equipment.
The full-range gR characteristic provides protection against both overload and short-circuit currents. Combined with its striker indication system, the fuse supports dependable equipment protection, faster fault diagnosis and reduced downtime in critical industrial applications.
Typical Applications
- Variable frequency drives and motor-control systems.
- Industrial inverters and power converters.
- Uninterruptible power supply systems.
- Rectifiers and semiconductor power supplies.
- Renewable energy conversion equipment.
- Industrial automation and production machinery.
- Power semiconductor protection circuits.
- Electrical control panels and power-electronic assemblies.
