Why Choose the Mersen E300591 Protistor® High-Speed Fuse?
The Mersen E300591, catalogue number PC30UD69V100DSI, 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 30 series, this fuse is specifically designed to protect IGBTs, thyristors, diodes and other semiconductor devices against damaging short circuits and fault currents. It features DIN 110 blade terminals with an integrated striker indicator for dependable protection in demanding industrial environments.
Manufactured using precision die-cut fuse elements embedded in solidified silica sand, together with silver-plated contacts and non-magnetic hardware, the E300591 delivers exceptionally low let-through energy (I²t). This helps minimise damage to expensive semiconductor devices while reducing downtime and extending the service life of critical power conversion equipment.
With a 100 A current rating, 690 V AC IEC rating and 700 V AC UL rating, the Mersen E300591 is ideal for variable speed drives, UPS systems, industrial converters, rectifiers and renewable energy applications requiring reliable semiconductor protection.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 100 A current rating for industrial power electronics.
- 690 V AC IEC / 700 V AC UL voltage rating.
- Protects IGBTs, thyristors and diode modules against short-circuit faults.
- Low I²t characteristics minimise semiconductor damage.
- DIN 110 blade terminals for secure bolted installation.
Key Features
- Mersen Protistor® Size 30 series.
- 100 A rated current.
- 690 V AC IEC / 700 V AC UL rated voltage.
- aR ultra-fast operating characteristic.
- DIN 110 blade terminals.
- Integrated striker indicator for remote fuse monitoring.
- 200 kA breaking capacity.
- Silver-plated contacts with non-magnetic hardware.
- RoHS compliant.
Reliable Protection for Industrial Power Electronics
High-speed semiconductor fuses are designed to interrupt fault currents before sensitive semiconductor devices can be damaged. The Mersen Protistor® Size 30 range provides extremely fast fault interruption with low I²t values, helping improve equipment reliability while reducing maintenance costs and costly downtime.
The E300591 is widely used in industrial drives, power converters, UPS systems, rectifiers, renewable energy installations and automation equipment where dependable semiconductor protection is essential.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor control systems.
- Power converters and rectifiers.
- UPS and standby power systems.
- Renewable energy inverter systems.
- Industrial automation and OEM machinery.
