Why Choose the Mersen C300014 PC31UD69V450A High-Speed Fuse?
The Mersen C300014 PC31UD69V450A is a premium square body high-speed semiconductor fuse engineered to provide ultra-fast protection for modern power electronic equipment. As part of the trusted Mersen Protistor® Size 31 aR series, it is specifically designed to protect sensitive semiconductor devices including IGBTs, thyristors, diodes and rectifiers against damaging short-circuit faults in industrial power conversion systems.
Constructed using precision die-cut silver fuse elements embedded in solidified silica sand, the fuse delivers excellent current limiting performance, low let-through energy and exceptional breaking capacity. Silver-plated contact surfaces and non-magnetic hardware ensure long-term reliability in demanding industrial environments while the integrated striker indicator simplifies maintenance and remote monitoring.
With a 450 A current rating, 690 V AC IEC and 700 V AC UL voltage ratings, the C300014 is ideally suited for variable frequency drives, converters, UPS systems, renewable energy equipment and industrial automation applications requiring dependable semiconductor protection.
Key Advantages
- Ultra-fast aR semiconductor fuse for critical power electronics.
- 450 A current rating for industrial applications.
- 690 V AC IEC / 700 V AC UL voltage rating.
- High 200 kA breaking capacity.
- Integrated striker indicator for remote fuse monitoring.
- Silver-plated DIN 80 blade terminals for reliable electrical connections.
Key Features
- Mersen Protistor® Size 31 aR series.
- 450 A rated current.
- 690 V AC IEC / 700 V AC UL.
- Square body ceramic fuse construction.
- DIN 80 blade terminals.
- Integrated striker indication.
- Ultra-fast protection for semiconductor devices.
- Current limiting design with low I²t characteristics.
Reliable Protection for Industrial Power Electronics
High-speed semiconductor fuses are designed to interrupt fault currents before sensitive semiconductor devices suffer thermal or electrical damage. Their exceptionally fast operation reduces fault energy, improves equipment reliability and helps minimise costly downtime.
The Mersen Protistor® Size 31 range is trusted worldwide by OEMs, panel builders and industrial engineers for protecting converters, drives, UPS systems and renewable energy equipment where dependable semiconductor protection is essential.
Typical Applications
- Variable frequency drives.
- Industrial converters.
- UPS systems.
- Renewable energy inverters.
- Motor control centres.
- Industrial automation equipment.
