Why Choose the Mersen Z089469 High-Speed Cylindrical Fuse?
The Mersen Z089469, catalogue reference FD20GC150V6, is a high-speed cylindrical semiconductor fuse designed to provide exceptional protection for modern high-voltage DC power systems. Part of the Mersen Protistor® Size 20 × 190 mm gR (gRC) 1500 V DC series, it delivers rapid fault interruption to protect sensitive semiconductor devices used in industrial and railway applications.
Engineered for demanding DC applications, this fuse offers low energy let-through (I²t), reduced power dissipation and a long operational life. Its fast-acting gR (gRC) characteristic helps minimise damage to protected components during overload and short-circuit conditions while maintaining high system reliability.
With a rated current of 6 A, a 1500 V DC voltage rating and a robust 20 × 190 mm cylindrical body, the Z089469 is ideally suited to railway auxiliary circuits, industrial converters, renewable energy systems and other high-voltage DC power electronics requiring dependable semiconductor protection.
Key Advantages
- High-speed gR (gRC) semiconductor fuse for critical DC applications.
- 6 A rated current for auxiliary and semiconductor circuits.
- 1500 V DC rated voltage for demanding high-voltage installations.
- Low I²t helps minimise damage to sensitive semiconductor devices.
- Low power dissipation supports efficient system operation.
- Long service life in demanding industrial environments.
Key Features
- Mersen Protistor® high-speed cylindrical fuse.
- Catalogue number: FD20GC150V6.
- Manufacturer part number: Z089469.
- 6 A rated current.
- 1500 V DC rated voltage.
- gR (gRC) operating characteristic.
- 20 × 190 mm cylindrical fuse body.
- Ferrule terminals with silver-plated copper contacts.
- Ceramic body construction.
- Clip-mounted installation.
Reliable Protection for High-Voltage DC Systems
High-speed semiconductor fuses are specifically designed to interrupt fault currents before excessive thermal or electrical energy can damage expensive power electronic components. The Mersen Z089469 delivers rapid fault clearance with low energy let-through, making it ideal for protecting converters, rectifiers, inverters and other semiconductor equipment.
Its robust ceramic construction, high breaking capacity and low power losses make it suitable for railway power systems, renewable energy installations and industrial automation equipment where dependable protection and maximum equipment availability are essential.
Typical Applications
- Railway traction and auxiliary power circuits.
- Industrial power converters.
- Semiconductor rectifiers and inverters.
- Battery energy storage systems.
- Renewable energy DC installations.
- Industrial automation equipment.
- High-voltage DC distribution systems.
