Why Choose the Mersen Q300716 Protistor® High-Speed Fuse?
The Mersen Q300716 (A130UD70LI280) is a premium square body semiconductor protection fuse engineered to provide ultra-fast protection for sensitive power electronic equipment. As part of the proven Mersen Protistor® Size 70 series, this aR high-speed fuse is specifically designed to protect diodes, thyristors, GTOs and IGBTs used in industrial power conversion systems.
Designed for demanding industrial environments, the Q300716 delivers excellent current limitation and low let-through energy to minimise damage during short-circuit faults. Its robust ceramic body, pure silver fuse elements, silver-plated contacts and integrated striker indicator ensure dependable operation and long service life.
With a 280 A current rating and a 1200 V AC IEC / 1300 V AC UL voltage rating, the Mersen Q300716 is ideally suited for protecting industrial drives, UPS systems, renewable energy equipment, power converters and other semiconductor-based applications.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 280 A current rating for demanding industrial applications.
- 1200 V AC IEC / 1300 V AC UL voltage rating.
- Designed to protect IGBTs, thyristors, GTOs and power semiconductors.
- Low I²t performance helps reduce equipment damage during faults.
- Integrated striker indicator simplifies maintenance and fuse monitoring.
Key Features
- Mersen Protistor® Size 70 series.
- Catalogue number: A130UD70LI280.
- 280 A rated current.
- 1200 V AC (IEC) / 1300 V AC (UL).
- Ultra-fast aR operating characteristic.
- Long slotted blade terminals.
- Integrated striker indicator.
- Silver-plated contacts with ceramic square body construction.
Reliable Protection for Power Electronics
High-speed semiconductor fuses are engineered to interrupt fault currents before sensitive electronic components can be damaged. Their ultra-fast response and low let-through energy provide superior protection compared with conventional industrial fuses, helping maximise equipment reliability while reducing maintenance costs and downtime.
The Protistor® range is widely used in industrial automation, renewable energy, UPS systems and variable speed drives where dependable semiconductor protection is essential for safe and efficient operation.
Typical Applications
- Variable speed drives (VSDs).
- Industrial motor drives.
- Power converters and inverters.
- UPS and backup power systems.
- Renewable energy installations.
- Protection of IGBTs, thyristors, GTOs and semiconductor devices.
