Why Choose the Mersen M302047 High Speed Semiconductor Fuse?
The Mersen M302047, catalogue number PC72UD10C800PA, is a premium Protistor® Size 72 square body high-speed semiconductor fuse designed to deliver ultra-fast short-circuit protection for modern power electronic equipment. Engineered specifically for semiconductor applications, it protects IGBTs, thyristors, diodes and other sensitive semiconductor devices against damaging fault currents.
Featuring an 800 A current rating, 1000 V AC IEC / 1100 V AC UL voltage rating and an aR operating class, the M302047 provides exceptional current-limiting performance with very low let-through energy. Its robust ceramic square body construction and high interrupting capacity make it ideal for demanding industrial applications including power converters, motor drives and renewable energy systems.
The fuse incorporates a Size 72 square body design with plain blade terminals, silver-plated contacts and an integrated striker indicator, allowing straightforward installation and optional remote indication using compatible microswitches.
Key Advantages
- Ultra-fast aR semiconductor protection.
- 800 A rated current.
- 1000 V AC IEC / 1100 V AC UL voltage rating.
- Protects IGBTs, thyristors and power semiconductor devices.
- Very low let-through energy for improved semiconductor protection.
- Integrated striker for remote fuse indication.
- Silver-plated contact surfaces for dependable conductivity.
- High interrupting capacity for demanding industrial installations.
Key Features
- Manufacturer: Mersen
- Series: Protistor® Size 72
- Manufacturer Part Number: M302047
- Catalogue Number: PC72UD10C800PA
- Square body high-speed semiconductor fuse.
- Plain blade terminals.
- Integrated striker indicator.
- Silver-plated contacts.
- Ceramic body construction.
- RoHS compliant.
Reliable Protection for Industrial Power Electronics
Protistor® semiconductor fuses are engineered to interrupt fault currents before they can damage costly semiconductor devices. Their ultra-fast operation reduces thermal stress, improves equipment reliability and minimises downtime in critical industrial power systems.
The Mersen M302047 is ideally suited for industrial automation, renewable energy systems, UPS installations and high-power conversion equipment where dependable semiconductor protection is essential.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor drives.
- Power converters.
- Rectifiers.
- UPS systems.
- Renewable energy inverters.
- Industrial automation equipment.
- OEM electrical control panels.
