Why Choose the Mersen G300248 Protistor® High Speed Fuse?
The Mersen G300248 is a genuine Protistor® Size 33 aR high speed semiconductor fuse designed to provide exceptional protection for modern power electronic equipment. Engineered for demanding industrial applications, this square body fuse delivers ultra-fast fault interruption to protect sensitive semiconductor devices including IGBTs, thyristors and diodes against damaging short-circuit conditions.
With a 500 A current rating and a 690 V AC IEC / 700 V AC UL voltage rating, the G300248 is ideally suited to industrial drives, inverters, UPS systems and renewable energy power conversion equipment. Its aR ultra-fast operating characteristic helps minimise let-through energy, reducing equipment damage while improving system reliability and availability.
Supplied under manufacturer part number G300248 and catalogue number PC33UD69V500A, this fuse features DIN 80 blade terminals with an integrated striker indication. It is designed for OEM installations and industrial maintenance where dependable semiconductor protection is essential.
Key Advantages
- Genuine Mersen Protistor® high speed semiconductor fuse.
- 500 A current rating for demanding industrial applications.
- 690 V AC IEC / 700 V AC UL rated operation.
- Ultra-fast aR characteristic for semiconductor protection.
- DIN 80 blade terminals with integrated striker indication.
- Designed to reduce equipment damage and minimise downtime.
Key Features
- Mersen Protistor® Size 33 series.
- Model G300248.
- Catalogue number PC33UD69V500A.
- 500 A rated current.
- 690 V AC IEC / 700 V AC UL.
- Square body fuse with DIN 80 blade terminals.
- Integrated striker indication.
- Silver-plated contacts for dependable long-term performance.
Reliable Protection for Power Electronics
High speed semiconductor fuses are specifically designed to protect sensitive electronic power devices that require extremely rapid fault interruption. Their low let-through energy helps safeguard expensive semiconductor assemblies while maintaining reliable system operation and reducing maintenance costs.
The Mersen Protistor® range is widely specified in industrial automation, motor drives, renewable energy systems, UPS equipment and power conversion applications where dependable semiconductor protection is essential.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial inverters.
- UPS systems.
- Motor drives and soft starters.
- Renewable energy converters.
- Industrial power conversion equipment.
