Why Choose the Mersen FR27GB80V25T High-Speed Semiconductor Fuse?
The Mersen FR27GB80V25T (Item Number X221441) is a premium Protistor® high-speed cylindrical semiconductor fuse designed to provide full-range protection for sensitive power semiconductor devices. As part of the Mersen Protistor® 27 × 60 mm gR (gRB) series, this fuse features an integrated trip indicator (striker) for rapid fault indication and simplified maintenance. Rated at 25 A and 800 V AC (IEC), it is ideally suited to industrial power conversion and automation equipment.
Engineered with precision die-cut fuse elements embedded in solidified sand, the FR27GB80V25T delivers excellent current-limiting performance with low let-through energy, helping to protect IGBTs, SCRs, diodes and other semiconductor devices from costly damage during fault conditions.
Its compact 27 × 60 mm cylindrical body fits compatible fuse holders used in drives, converters, UPS systems and industrial control equipment. The integrated striker enables quick visual indication and can be connected to compatible monitoring systems for remote fuse status signalling.
Key Advantages
- High-speed gR semiconductor protection fuse.
- 25 A current rating for industrial power electronics.
- 800 V AC IEC rated.
- Integrated striker for rapid fuse indication.
- Excellent current-limiting characteristics minimise semiconductor damage.
- Compact 27 × 60 mm cylindrical construction.
Key Features
- Mersen Protistor® 27 × 60 mm gR (gRB) series.
- 25 A rated current.
- 800 V AC IEC rated voltage.
- gR utilisation category for full-range semiconductor protection.
- Integrated trip indicator (striker).
- 90 kA AC breaking capacity.
- Low clearing I²t for improved semiconductor protection.
- RoHS compliant.
Reliable Protection for Industrial Power Electronics
The FR27GB80V25T rapidly interrupts fault currents before they can damage expensive semiconductor devices. Its low let-through energy and high interrupting capacity improve equipment reliability while helping reduce maintenance costs and production downtime.
The built-in striker provides immediate indication when the fuse has operated and supports connection to compatible auxiliary monitoring systems, making it ideal for modern industrial automation and power conversion equipment.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial inverters.
- Power converters.
- UPS systems.
- Servo drives.
- Industrial automation equipment.
- Rectifiers and power supplies.
