Why Choose the Mersen D089473 Protistor® High-Speed Fuse?
The Mersen D089473 is a high-performance Protistor® cylindrical semiconductor protection fuse engineered to provide ultra-fast protection for sensitive power electronic devices operating in demanding DC applications. Featuring a 16 A current rating and a 1500 V DC voltage rating, this fuse is designed to minimise damage to semiconductor components during short-circuit conditions while maintaining dependable system reliability.
Part of the trusted Mersen Protistor® 20 x 190 mm gR (gRC) series, the D089473 delivers low I²t performance, reduced power loss and excellent cycling capability. It is ideally suited to protecting IGBTs, diodes, thyristors and other semiconductor devices used within modern industrial power conversion systems.
Manufactured to IEC standards, this cylindrical fuse is widely used in renewable energy systems, railway equipment, industrial DC drives and power conversion applications where reliable semiconductor protection is essential for operational safety and equipment longevity.
Key Advantages
- Ultra-fast gR (gRC) semiconductor protection fuse.
- 1500 V DC rating for high-voltage DC applications.
- 16 A current rating for reliable circuit protection.
- Low I²t characteristics help minimise semiconductor damage.
- Excellent cycling capability and long operational life.
- Designed specifically for modern power electronics and converters.
Key Features
- Manufacturer: Mersen.
- Series: Protistor® 20 x 190 gR (gRC).
- Part number: D089473.
- Catalogue number: FD20GC150V16.
- Rated current: 16 A.
- Rated voltage: 1500 V DC.
- Fuse characteristic: gR (gRC) high-speed semiconductor protection.
- Cylindrical 20 x 190 mm construction.
- Designed for IEC semiconductor protection applications.
- RoHS compliant.
High-Speed Protection for Critical Power Electronics
Semiconductor fuses are specifically engineered to interrupt extremely high fault currents before costly damage can occur to sensitive power electronic devices. Their ultra-fast operating characteristics significantly reduce thermal and electrical stress on IGBTs, SCRs, diodes and other semiconductor components.
The Mersen Protistor® range is widely specified by equipment manufacturers for use in renewable energy installations, railway systems, industrial drives, UPS equipment, battery storage systems and other high-power DC applications where maximum protection and reliability are required.
Typical Applications
- Industrial power converters.
- DC motor drives.
- Battery energy storage systems.
- Railway traction and auxiliary power systems.
- Solar photovoltaic inverters.
- UPS systems and power electronics.
- Protection of IGBT, SCR and diode modules.
