Why Choose the Mersen X300653 Protistor® High-Speed Fuse?
The Mersen X300653 is a premium square body semiconductor protection fuse engineered to provide ultra-fast protection for sensitive power semiconductor devices including IGBTs, thyristors, GTOs and diodes. As part of the Mersen Protistor® Size 70 aR series, it is designed for high-voltage power conversion equipment where rapid fault interruption and dependable semiconductor protection are essential.
Manufactured using pure silver fuse elements embedded in solidified sand, the X300653 delivers low energy let-through, excellent arc control and high interrupting capacity. Silver-plated contact surfaces, slotted blade terminals and an integrated striker indicator provide dependable operation while simplifying maintenance in demanding industrial environments.
With a 80 A current rating and a 1250 V AC IEC / 1300 V AC UL voltage rating, the Mersen X300653 is ideally suited for industrial drives, UPS systems, converters, renewable energy equipment and other high-voltage power electronic applications.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 80 A current rating for high-voltage industrial applications.
- 1250 V AC IEC / 1300 V AC UL voltage capability.
- 200 kA breaking capacity for dependable fault protection.
- Integrated striker indicator simplifies maintenance.
- Silver-plated slotted blade terminals ensure reliable electrical performance.
Key Features
- Mersen Protistor® Size 70 series.
- 80 A rated current.
- 1250 V AC IEC / 1300 V AC UL rated voltage.
- aR ultra-fast operating characteristic.
- Integrated striker indication system.
- Long slotted blade terminals.
- Square body bolted construction.
- Designed specifically for semiconductor protection.
Reliable Semiconductor Protection
High-speed semiconductor fuses are specifically engineered to interrupt fault currents before expensive semiconductor devices can be damaged. Their ultra-fast response minimises thermal stress while maintaining the performance and reliability of industrial power conversion equipment.
The Mersen Protistor® range is widely used throughout industrial automation, renewable energy, transportation and manufacturing industries, providing dependable protection for drives, converters, rectifiers and UPS systems.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor drives.
- Power converters and rectifiers.
- UPS systems.
- Renewable energy inverters.
- Industrial automation and power electronic equipment.
