Why Choose the Mersen S076928 Protistor® High-Speed Fuse?
The Mersen S076928 is a high-performance Protistor® high-speed cylindrical semiconductor fuse designed to protect sensitive power electronic devices against short circuits and fault currents. As part of the Protistor® 10 × 38 mm aR series, it delivers extremely fast fault interruption for semiconductors used in industrial automation, motor drives and power conversion equipment.
Specifically engineered for semiconductor protection, the S076928 provides exceptional current limiting performance and a high breaking capacity, helping minimise damage to expensive components such as IGBTs, SCRs, diodes and rectifiers. Its integrated striker indicator also provides clear visual indication following fuse operation, simplifying maintenance and fault diagnosis.
With a 4 A current rating, 500 V AC rating and 10 × 38 mm cylindrical format, the Mersen S076928 is ideal for industrial power electronics, variable speed drives, UPS systems and semiconductor protection applications.
Key Advantages
- High-speed aR semiconductor fuse for sensitive electronic equipment.
- 4 A current rating for semiconductor circuit protection.
- 500 V AC rated voltage.
- Designed for 10 × 38 mm cylindrical fuse holders.
- Integrated striker indicator for rapid fuse status identification.
- Excellent current limiting performance with high breaking capacity.
Key Features
- Mersen Protistor® series.
- Model: S076928.
- Catalogue number: A050URD4T13I.
- 4 A rated current.
- 500 V AC IEC rating.
- aR ultra-fast characteristic for semiconductor protection.
- 10 × 38 mm cylindrical format.
- Integrated striker indicator.
- Compliant with IEC 60269-1 and IEC 60269-4.
Reliable Protection for Power Electronics
Semiconductor fuses are specifically engineered to protect power electronic components from destructive short circuits by interrupting fault currents before damage can occur. Their extremely fast operating characteristics help maximise equipment reliability while reducing costly downtime.
The Mersen Protistor® range is trusted worldwide by machine builders, panel manufacturers and industrial engineers for protecting inverters, motor drives, UPS systems and other semiconductor-based equipment requiring rapid fault clearance.
Typical Applications
- Variable speed drives.
- Industrial inverters.
- UPS systems.
- Semiconductor power supplies.
- Industrial automation equipment.
- Power conversion systems.
