Why Choose the Mersen Y089468 High-Speed Cylindrical Fuse?
The Mersen Y089468, catalogue reference FD20GC150V4, is a high-speed cylindrical fuse-link designed to protect sensitive semiconductor devices and high-voltage DC electrical equipment. Part of the Mersen Protistor® 20 × 190 mm fuse range, it provides rapid fault interruption for power electronic systems where conventional industrial fuses may not operate quickly enough.
This fuse features a gR full-range operating characteristic, providing protection against both overload currents and short-circuit faults. Its low energy let-through helps limit thermal and electrical stress on semiconductor components, supporting improved equipment reliability and reduced risk of costly component damage.
With a rated current of 4 A and a rated operating voltage of 1500 V DC, the Y089468 is suitable for low-current circuits within industrial converters, railway equipment, renewable energy installations and other high-voltage DC systems. Its robust 20 × 190 mm cylindrical format enables installation in compatible fuse holders or mounting clips.
Key Advantages
- High-speed semiconductor fuse protection for sensitive power electronic components.
- 4 A rated current for low-current control and auxiliary circuits.
- 1500 V DC voltage rating for demanding high-voltage systems.
- gR full-range characteristic provides overload and short-circuit protection.
- Low energy let-through helps minimise damage to semiconductor devices.
- Durable cylindrical construction supports reliable industrial operation.
Key Features
- Mersen Protistor® high-speed cylindrical fuse-link.
- Manufacturer reference: Y089468.
- Catalogue reference: FD20GC150V4.
- 4 A rated current.
- 1500 V DC rated voltage.
- gR semiconductor fuse characteristic.
- 20 × 190 mm cylindrical fuse size.
- Ferrule-style terminals for compatible fuse clips and holders.
- Designed for high-voltage DC and power electronic applications.
Reliable Protection for High-Voltage DC Equipment
High-speed semiconductor fuses are engineered to interrupt fault currents before excessive energy can pass through sensitive electronic components. The Mersen Y089468 helps protect diodes, thyristors, rectifiers and other semiconductor devices against damaging overload and short-circuit conditions.
Its 1500 V DC rating makes it suitable for modern power conversion and transportation systems operating at elevated DC voltages. The gR characteristic delivers full-range protection, helping improve system availability while reducing the potential for secondary damage within electrical assemblies.
Typical Applications
- Industrial power converters and rectifiers.
- Railway traction and auxiliary DC circuits.
- Semiconductor switching equipment.
- Renewable energy power conversion systems.
- Battery energy storage installations.
- High-voltage DC control systems.
- Industrial automation and electrical control panels.
