Why Choose the Mersen F300109 Protistor® High Speed Semiconductor Fuse?
The Mersen F300109 is a Protistor® Size 30 square body high-speed semiconductor fuse engineered to provide ultra-fast protection for sensitive power semiconductor devices. Designed for modern power conversion equipment, it delivers exceptional current-limiting performance to minimise damage during short-circuit conditions while helping maximise system reliability and uptime.
Part of the Protistor® Size 30 aR series, the F300109 is specifically designed to protect diodes, thyristors, IGBTs and MOSFET devices. Precision die-cut silver fuse elements embedded in solidified sand provide very low I²t values, excellent arc control and a high interrupting capacity for demanding industrial applications.
Rated at 80 A with a 690 V AC IEC / 700 V AC UL voltage rating, the fuse features DIN 80 blade terminals and an integrated striker indicator, making it ideal for industrial drives, UPS systems, converters, rectifiers and renewable energy equipment.
Key Advantages
- Ultra-fast protection for semiconductor devices.
- 80 A current rating.
- 690 V AC IEC / 700 V AC UL rated.
- aR utilisation category for semiconductor protection.
- Very low I²t limits damage during fault conditions.
- 200 kA interrupting capacity.
- Silver-plated contacts for optimum conductivity.
- Integrated striker indicator for remote status monitoring.
Key Features
- Manufacturer Part Number: F300109.
- Catalogue Number: PC30UD69V80A.
- Protistor® Size 30 square body fuse.
- 80 A current rating.
- 690 V AC IEC / 700 V AC UL voltage rating.
- DIN 80 blade terminals.
- Bolted installation.
- Low-voltage striker indicator.
- Ceramic body with silver-plated contacts.
- RoHS compliant.
Reliable Protection for Modern Power Electronics
High-speed semiconductor fuses are specifically designed to protect expensive power electronic devices that require extremely rapid fault interruption. The Protistor® range offers outstanding current limitation and low energy let-through, helping to reduce damage to IGBTs, SCRs, thyristors, rectifiers and other semiconductor assemblies.
The Mersen F300109 is widely specified by OEMs, machine builders and maintenance engineers where dependable semiconductor protection is critical for industrial automation, renewable energy and power conversion equipment.
Applications
- Variable speed drives.
- Industrial inverters.
- UPS systems.
- Power converters.
- Rectifiers.
- Renewable energy systems.
- Industrial motor control.
- Semiconductor protection circuits.
