Why Choose the Mersen E300200 Protistor® High Speed Fuse?
The Mersen E300200, catalogue number A070UD32KI700, is a premium square body high speed semiconductor fuse designed to provide ultra-fast protection for modern power electronic equipment. As part of the trusted Mersen Protistor® Size 32 series, this fuse is specifically engineered to protect IGBTs, thyristors, diodes and other semiconductor devices against damaging short circuits and fault currents.
Designed for demanding industrial environments, the E300200 delivers exceptional current limiting performance with low let-through energy, helping to minimise damage to expensive equipment and reduce downtime. Precision die-cut fuse elements embedded in solidified sand, combined with silver-plated contact surfaces and non-magnetic hardware, provide dependable long-term protection for critical power conversion systems.
With a 700 A current rating and a 690 V AC IEC / 700 V AC UL voltage rating, the Mersen E300200 is ideally suited for variable frequency drives, UPS systems, converters, rectifiers, renewable energy installations and industrial automation equipment where reliable semiconductor protection is essential.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 700 A current rating for demanding industrial applications.
- 690 V AC IEC / 700 V AC UL voltage rating.
- Protects IGBTs, thyristors and diode modules.
- Low I²t characteristics minimise equipment damage during fault conditions.
- Silver-plated contacts provide excellent conductivity and long service life.
Key Features
- Mersen Protistor® Size 32 series.
- 700 A rated current.
- 690 V AC IEC / 700 V AC UL rated voltage.
- aR ultra-fast operating characteristic.
- Square body fuse with short slotted blade terminals.
- Integrated striker indicator for remote fuse monitoring.
- 200 kA breaking capacity.
- RoHS compliant construction.
Reliable Protection for Industrial Power Electronics
High speed semiconductor fuses are specifically designed to interrupt fault currents before expensive semiconductor devices are damaged. The Mersen Protistor® range provides exceptionally fast fault clearing with low I²t values, making it ideal for protecting today's high-performance power conversion equipment.
The E300200 is widely used in industrial motor drives, renewable energy systems, power converters and automation equipment, providing dependable protection for critical semiconductor devices while improving equipment reliability and reducing maintenance costs.
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.
