Why Choose the Mersen Q301061 Protistor® High-Speed Fuse?
The Mersen Q301061 (PC32UD50V1400TF) is a heavy-duty square body semiconductor protection fuse engineered to provide ultra-fast protection for high-power semiconductor equipment. As part of the proven Mersen Protistor® Size 32 series, this aR fuse is specifically designed to protect diodes, thyristors and IGBT modules used in demanding industrial power conversion systems.
Designed for high-current industrial applications, the Q301061 delivers excellent current limitation and exceptionally low let-through energy, helping to minimise damage during short-circuit faults. Its ceramic square body, silver-plated contact surfaces and integrated striker indicator ensure dependable operation, long service life and simplified maintenance.
With a 1400 A current rating and a 500 V AC IEC / 550 V AC UL voltage rating, the Mersen Q301061 is ideally suited for protecting large variable speed drives, industrial rectifiers, power converters, UPS systems and other high-power electronic equipment.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 1400 A current rating for high-power industrial applications.
- 500 V AC IEC / 550 V AC UL voltage rating.
- Designed to protect IGBTs, thyristors and power semiconductor devices.
- Low I²t characteristics reduce damage during fault conditions.
- Integrated striker indicator for convenient fuse status monitoring.
Key Features
- Mersen Protistor® Size 32 series.
- Catalogue number: PC32UD50V1400TF.
- 1400 A rated current.
- 500 V AC (IEC) / 550 V AC (UL).
- Ultra-fast aR operating characteristic.
- Square body design with flush ends and metric threaded connections.
- Integrated striker indicator for remote indication capability.
- Silver-plated contact surfaces with ceramic body construction.
Reliable Protection for High-Power Electronics
High-speed semiconductor fuses are engineered to interrupt fault currents before expensive 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 downtime and maintenance costs.
The Protistor® range from Mersen is trusted worldwide across industrial automation, renewable energy, UPS installations and power conversion systems where dependable semiconductor protection is essential for continuous operation.
Typical Applications
- Variable speed drives (VSDs).
- Industrial motor control systems.
- Power converters and inverters.
- Industrial rectifiers.
- UPS and backup power systems.
- Protection of IGBTs, thyristors and other semiconductor devices.
