Why Choose the Mersen N300323 Protistor® High-Speed Fuse?
The Mersen N300323 is a Protistor® Size 31 square body high-speed semiconductor protection fuse designed to protect sensitive power electronic equipment against damaging short-circuit faults. Featuring an ultra-fast aR operating characteristic, it is engineered for the protection of IGBTs, thyristors, diodes, SCRs and other semiconductor devices used in industrial power conversion equipment.
This fuse is rated for 160 A and is designed for operation on systems up to 690 V AC (IEC) / 700 V AC (UL). Its square body construction, low let-through energy (I²t) and high interrupting capacity help minimise damage to valuable semiconductor devices whilst maximising equipment uptime.
The Mersen N300323 is ideally suited to variable speed drives, UPS systems, industrial converters, motor drives and renewable energy applications where dependable semiconductor protection is essential.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 160 A continuous current rating.
- 690 V AC IEC / 700 V AC UL operation.
- Protects IGBTs, thyristors, SCRs and other semiconductor devices.
- High interrupting capacity for demanding industrial applications.
- Low I²t helps reduce damage during fault conditions.
Key Features
- Mersen Protistor® Size 31 series.
- Mersen part number N300323.
- 160 A rated current.
- 690 V AC IEC / 700 V AC UL.
- aR ultra-fast operating characteristic.
- Square body ceramic construction.
- Designed specifically for semiconductor protection.
- Suitable for industrial power conversion equipment.
Reliable Protection for Industrial Power Electronics
Protistor® semiconductor fuses are engineered to interrupt high fault currents before excessive thermal energy can damage sensitive semiconductor devices. Their ultra-fast response and current-limiting performance make them a preferred choice for OEMs and industrial maintenance engineers protecting critical power electronic equipment.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor drives.
- UPS systems.
- Power converters.
- Renewable energy inverters.
- Servo drives.
- Industrial control panels.
- Semiconductor protection systems.
