Why Choose the Mersen G300570 Protistor® High-Speed Fuse?
The Mersen G300570 (PC73UD13C630D1A) is a premium square body high-speed semiconductor fuse engineered to deliver rapid fault protection for sensitive power electronic equipment. As part of the proven Mersen Protistor® Size 73 aR series, it is specifically designed to protect IGBTs, thyristors, diodes and other semiconductor devices used in demanding industrial power conversion applications.
Manufactured for reliable performance in high-power electrical systems, this ultra-fast acting fuse quickly interrupts short-circuit currents before they can damage valuable semiconductor components. Its robust square body construction, silver-plated DIN 110 blade terminals and solidified sand arc-quenching technology provide excellent current limitation and dependable long-term operation.
With a 630 A current rating, 1250 V AC IEC / 1300 V AC UL voltage rating and an integrated striker indicator, the G300570 is ideally suited for industrial drives, UPS systems, renewable energy equipment, converters and high-power inverter installations.
Key Advantages
- Ultra-fast aR semiconductor protection fuse for critical power electronics.
- 630 A current rating for high-power industrial applications.
- 1250 V AC IEC and 1300 V AC UL voltage ratings.
- Provides reliable protection for IGBTs, thyristors, SCRs and diode modules.
- Integrated striker indicator for simple fuse status monitoring.
- High interrupting capacity with low let-through energy.
Key Features
- Mersen Protistor® Size 73 aR series.
- Catalogue number: PC73UD13C630D1A.
- 630 A rated current.
- 1250 V AC IEC / 1300 V AC UL rated voltage.
- Square body fuse with DIN 110 blade terminals.
- Integrated striker indication.
- Silver-plated contacts for low resistance and excellent conductivity.
- Designed for advanced semiconductor and power conversion protection.
Reliable Protection for High-Power Electronics
High-speed semiconductor fuses are designed to minimise fault energy by interrupting high short-circuit currents extremely quickly. This helps prevent costly damage to semiconductor devices while improving the reliability and availability of industrial electrical systems.
The Mersen Protistor® range is trusted by equipment manufacturers and maintenance engineers worldwide for protecting drives, converters, UPS systems and renewable energy installations where dependable semiconductor protection is essential.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor drives.
- Power converters and rectifiers.
- UPS and backup power systems.
- Renewable energy inverters.
- Protection of IGBT, SCR and diode modules.
