Why Choose the Mersen P300715 Protistor® High-Speed Fuse?
The Mersen P300715 is a premium Protistor® Size 71 high-speed semiconductor fuse engineered to provide ultra-fast protection for modern power electronic equipment. Designed for demanding industrial applications, it protects diodes, thyristors and IGBT devices against damaging short-circuit and overcurrent conditions while helping maximise equipment reliability and minimise downtime.
As part of the Mersen Protistor® Size 71 series, the P300715 features a square ceramic body with flush ends and metric threaded terminals together with an integrated striker indicator. Die-cut silver fuse elements embedded in solidified sand provide exceptionally low let-through energy and high interrupting performance for critical semiconductor protection applications.
Rated at 280 A with a 1250 V AC (IEC) / 1300 V AC (UL) voltage rating, the P300715 is ideally suited to industrial drives, UPS systems, renewable energy equipment, power converters and other high-performance electrical installations requiring dependable semiconductor protection.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 280 A current rating for demanding industrial applications.
- 1250 V AC IEC / 1300 V AC UL voltage rating.
- Protects diodes, thyristors and IGBT devices.
- 126 kA AC breaking capacity.
- Integrated striker indicator for simplified maintenance.
Key Features
- Mersen Protistor® Size 71 series.
- Catalogue number: PC71UD13C280TF.
- 280 A rated current.
- 1250 V AC IEC / 1300 V AC UL operating voltage.
- aR ultra-fast semiconductor protection characteristic.
- Flush ends with metric threaded terminals.
- Integrated striker indicator.
- Silver-plated contacts with square ceramic body construction.
Reliable Protection for Power Electronics
The Mersen P300715 has been developed for demanding power conversion equipment where semiconductor devices require rapid fault clearance. Its low I²t performance helps minimise thermal stress during fault conditions, reducing the risk of costly equipment damage while extending the service life of protected components.
Suitable for OEM installations and maintenance replacements, the P300715 provides dependable protection in industrial environments where high-speed semiconductor protection is essential for safe and reliable operation.
Typical Applications
- Variable speed drives (VSDs).
- Industrial power converters.
- Renewable energy inverter systems.
- Uninterruptible power supplies (UPS).
- Motor drives and soft starters.
- Industrial automation and power distribution equipment.
