Why Choose the Mersen X300193 Protistor® High-Speed Fuse?
The Mersen X300193 is a high-performance square body semiconductor protection fuse designed to provide ultra-fast protection for sensitive power semiconductor devices including IGBTs, thyristors and diodes. Manufactured as part of the renowned Mersen Protistor® size 32 aR series, this fuse delivers exceptional fault protection for demanding industrial power conversion applications.
Engineered for high breaking capacity and rapid fault interruption, the X300193 helps minimise damage to costly semiconductor equipment while improving the reliability of drives, UPS systems, inverters and industrial power electronics. Its robust square body construction, silver-plated contacts and integrated striker indicator simplify installation and maintenance in critical electrical systems.
With a 900 A current rating and 690 V AC IEC / 700 V AC UL voltage rating, the Mersen X300193 is ideally suited for protecting industrial converters, motor drives, DC drives and renewable energy equipment where fast semiconductor protection is essential.
Key Advantages
- Ultra-fast aR semiconductor protection fuse for sensitive electronic equipment.
- 900 A current rating for high-power industrial applications.
- 690 V AC IEC / 700 V AC UL voltage capability.
- High 200 kA breaking capacity for superior fault protection.
- Integrated striker indicator simplifies maintenance and fault indication.
- Silver-plated terminals provide reliable electrical performance.
Key Features
- Mersen Protistor® size 32 aR series.
- 900 A rated current.
- 690 V AC IEC / 700 V AC UL rated voltage.
- Ultra-fast aR characteristic for semiconductor protection.
- Integrated striker indication system.
- DIN 110 blade terminals.
- Square body bolted design.
- Suitable for protection of IGBTs, thyristors and power semiconductor devices.
Reliable Semiconductor Protection
High-speed semiconductor fuses are specifically designed to interrupt fault currents before damage can occur to expensive power electronic components. Their ultra-fast operating characteristics help minimise thermal stress while maintaining maximum system reliability.
The Mersen Protistor® range is widely used throughout industrial automation, renewable energy, power conversion and transportation systems where dependable semiconductor protection is critical to maintaining equipment uptime.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor drives.
- Power converters and rectifiers.
- UPS systems.
- Renewable energy inverters.
- Industrial power electronics and automation equipment.
