Why Choose the Mersen N300484 Protistor® High-Speed Fuse?
The Mersen N300484, catalogue number PC70UD13C80TF, is a Protistor® Size 70 square body high-speed semiconductor protection fuse engineered to provide superior short-circuit protection for sensitive power electronic equipment. Featuring an ultra-fast aR operating characteristic, it is specifically designed to protect IGBTs, thyristors, GTOs, diodes and other semiconductor devices used in demanding industrial power conversion systems.
Rated at 80 A, the N300484 operates at 1250 V AC (IEC) and 1300 V AC (UL), making it ideal for modern high-voltage power conversion equipment. Constructed using pure silver fuse elements embedded in solidified sand with silver-plated contact surfaces, it delivers excellent current limitation, low let-through energy (I²t) and dependable high-speed fault protection.
The fuse features flush-end metric threaded terminals with an integrated striker indicator for remote fuse indication when used with compatible microswitch accessories. Its compact Size 70 square body design is suitable for industrial drives, renewable energy systems, UPS installations and other high-performance semiconductor applications.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 80 A continuous current rating.
- 1250 V AC IEC / 1300 V AC UL operation.
- Protects IGBTs, thyristors, GTOs and power semiconductors.
- Integrated striker for remote status indication.
- Pure silver fuse elements for excellent current limitation.
- Low I²t helps minimise semiconductor damage.
- Designed for demanding industrial power conversion equipment.
Key Features
- Mersen Protistor® Size 70 series.
- Catalogue number PC70UD13C80TF.
- 80 A rated current.
- 1250 V AC IEC / 1300 V AC UL.
- aR ultra-fast operating characteristic.
- Flush-end metric threaded terminals.
- Silver-plated contact surfaces.
- Integrated striker indicator.
- RoHS compliant.
Engineered for High-Voltage Semiconductor Protection
Protistor® high-speed semiconductor fuses are designed to interrupt fault currents before excessive thermal energy can damage sensitive semiconductor devices. Their extremely fast operating speed, high interrupting capacity and low let-through energy help maximise equipment reliability while reducing maintenance costs and unplanned downtime.
The Mersen N300484 is widely used by OEMs and industrial engineers protecting high-voltage drives, renewable energy converters, UPS systems and industrial power conversion equipment operating up to 1300 V AC.
Typical Applications
- High-voltage variable frequency drives.
- Industrial power converters.
- Renewable energy inverters.
- UPS systems.
- Traction and transportation equipment.
- Motor control centres.
- Industrial automation systems.
- Semiconductor protection installations.
