Why Choose the Mersen D300567 Protistor® High-Speed Fuse?
The Mersen D300567 is a high-performance Protistor® square body semiconductor protection fuse engineered to provide fast and reliable protection for sensitive power electronic devices. Designed for demanding industrial applications, this ultra-fast aR high-speed fuse helps protect IGBTs, diodes, thyristors and other semiconductor components from damaging short circuits.
As part of the trusted Mersen Protistor® Size 73 series, the D300567 combines high breaking capacity, low let-through energy and dependable performance in power conversion equipment. Its robust square body construction with DIN 110 blade terminals and integrated striker indicator simplifies installation and maintenance while ensuring reliable operation in critical electrical systems.
With a 450 A current rating, 1250 V AC IEC / 1300 V AC UL voltage rating and 126 kA breaking capacity, the D300567 is ideal for protecting industrial drives, UPS systems, renewable energy converters and other high-power semiconductor equipment.
Key Advantages
- Ultra-fast aR semiconductor protection fuse for sensitive power electronics.
- 450 A current rating for demanding industrial applications.
- 1250 V AC IEC / 1300 V AC UL voltage capability.
- High 126 kA breaking capacity for exceptional fault protection.
- Integrated striker indicator for easy fuse status monitoring.
- Silver-plated contacts provide excellent conductivity and long service life.
Key Features
- Mersen Protistor® Size 73 series.
- Catalogue number: PC73UD13C450D1A.
- 450 A rated current.
- 1250 V AC (IEC) / 1300 V AC (UL) rated voltage.
- aR ultra-fast acting fuse for semiconductor protection.
- DIN 110 blade terminals.
- Integrated striker indicator.
- Square body construction with silver-plated contacts.
Reliable Protection for Power Electronics
High-speed semiconductor fuses are specifically designed to minimise fault energy reaching sensitive electronic components. Their rapid response helps reduce damage to expensive equipment while improving system reliability and reducing downtime.
The Mersen Protistor® range is widely used throughout industrial automation, renewable energy, traction, UPS systems and power conversion equipment where dependable semiconductor protection is essential for safe and efficient operation.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor control systems.
- Power converters and inverters.
- UPS and backup power systems.
- Renewable energy installations.
- Semiconductor protection in industrial equipment.
