Why Choose the Mersen N300576 Protistor® High-Speed Fuse?
The Mersen N300576, catalogue number A070UD30TTI160, is a Protistor® Size 30 square body high-speed semiconductor protection fuse engineered to provide exceptional short-circuit protection for modern power electronic equipment. Featuring an ultra-fast aR operating characteristic, it is specifically designed to protect IGBTs, thyristors, MOSFETs and diodes used in industrial drives, converters and power control systems.
Rated at 160 A, with a 690 V AC IEC and 700 V AC UL voltage rating, the N300576 delivers excellent current limitation with a 200 kA breaking capacity. The fuse is manufactured using die-cut silver fuse elements embedded in solidified sand, providing low let-through energy (I²t) and dependable protection for sensitive semiconductor devices.
Designed with flush-end UNC threaded terminals, silver-plated contacts and an integrated striker indicator, the Mersen N300576 is ideal for industrial motor drives, UPS systems, renewable energy converters, power supplies and other demanding semiconductor protection applications.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 160 A continuous current rating.
- 690 V AC IEC / 700 V AC UL voltage rating.
- High 200 kA breaking capacity.
- Protects IGBTs, thyristors, MOSFETs and diodes.
- Integrated striker indicator for remote monitoring.
- Silver-plated contacts for reliable electrical performance.
- Low I²t minimises semiconductor damage during faults.
Key Features
- Mersen Protistor® Size 30 series.
- Catalogue number A070UD30TTI160.
- 160 A rated current.
- 690 V AC IEC / 700 V AC UL.
- aR ultra-fast operating characteristic.
- Flush-end UNC threaded terminals.
- Silver-plated contact surfaces.
- Integrated striker indicator.
- RoHS compliant.
Engineered for Reliable Semiconductor Protection
Protistor® high-speed semiconductor fuses are specifically designed to interrupt fault currents before excessive thermal energy can damage expensive power semiconductor devices. Their low I²t values and high interrupting ratings help maximise equipment reliability while reducing maintenance costs and unplanned downtime.
The Mersen N300576 is widely specified by OEMs, panel builders and maintenance engineers protecting variable frequency drives, industrial converters, UPS systems and renewable energy equipment where dependable semiconductor protection is essential.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor drives.
- Power converters.
- UPS systems.
- Renewable energy inverters.
- Industrial automation equipment.
- Power supplies.
- Semiconductor protection systems.
