Why Choose the Mersen Z300632 Protistor® High-Speed Fuse?
The Mersen Z300632 is a high-performance Protistor® square body semiconductor protection fuse engineered to provide ultra-fast protection for sensitive power semiconductor devices in demanding industrial power conversion applications. Designed for high-voltage AC systems, it delivers rapid fault interruption to protect IGBTs, thyristors, diodes and other semiconductor components from damaging short circuits. Based on Mersen's published specifications, Z300632 corresponds to catalogue number PC73UD13C500EF.
Manufactured as part of the trusted Mersen Protistor® Size 73 aR series, this fuse features a ceramic square body construction with silver-plated open slot blade terminals and an integrated striker indicator for simplified maintenance. Its high breaking capacity and low let-through energy make it an excellent choice for modern power electronics and industrial automation systems.
With a 500 A current rating, 1250 V AC IEC / 1300 V AC UL rating and aR ultra-fast characteristic, the Z300632 is ideally suited for protecting semiconductor devices in variable speed drives, inverters, converters, UPS systems and renewable energy installations where reliable protection is essential.
Key Advantages
- High-speed Protistor® semiconductor protection fuse.
- 500 A current rating for high-power industrial applications.
- 1250 V AC IEC / 1300 V AC UL voltage rating.
- Ultra-fast aR characteristic for semiconductor protection.
- Integrated striker indicator for fuse status indication.
- High breaking capacity provides dependable fault protection.
Key Features
- Mersen Protistor® Size 73 aR series.
- Model: Z300632 / PC73UD13C500EF.
- 500 A rated current.
- 1250 V AC IEC / 1300 V AC UL rated voltage.
- Ultra-fast aR fuse characteristic.
- Ceramic square body construction.
- Silver-plated open slot blade terminals.
- Integrated striker indication system.
Reliable Protection for Power Semiconductor Equipment
Semiconductor protection fuses are designed to interrupt fault currents before costly power electronic devices can be damaged. The Mersen Protistor® range combines low I²t values with extremely rapid operation, helping minimise energy let-through while maintaining excellent protection of modern power conversion equipment.
The Z300632 is widely used wherever high-power semiconductors require dependable protection, making it suitable for industrial drives, converters, renewable energy systems and heavy-duty automation equipment operating in demanding environments.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial inverters and converters.
- Power semiconductor protection.
- UPS and power supply systems.
- Renewable energy converters.
- Industrial automation and motor control equipment.
