Why Choose the Mersen P330178 Protistor® Semiconductor Fuse?
The Mersen P330178 is a high-speed Protistor® semiconductor fuse engineered to provide dependable protection for sensitive power semiconductor devices in industrial power conversion equipment. Designed as part of the trusted Mersen Protistor® gRB series, it delivers rapid fault interruption and excellent current-limiting performance to safeguard IGBTs, thyristors, diodes and other semiconductor components from damaging overloads and short-circuit currents.
Featuring a gRB operating characteristic, the P330178 provides full-range semiconductor protection, making it suitable for applications where both overload and short-circuit protection are required. Manufactured using pure silver fuse elements embedded in solidified silica sand with silver-plated contacts, it offers low let-through energy, high interrupting capacity and long service life.
With a 63 A rated current, a 690 V AC (IEC) / 700 V AC (UL) voltage rating and an NH size 000 format, the Mersen P330178 is ideal for industrial drives, UPS systems, converters, inverters and other demanding power electronic installations requiring reliable semiconductor protection.
Key Advantages
- High-speed Protistor® semiconductor protection fuse.
- 63 A rated current for industrial power electronic equipment.
- 690 V AC IEC / 700 V AC UL voltage rating.
- gRB operating characteristic providing full-range semiconductor protection.
- Excellent current limiting performance helps minimise fault energy.
- Compact NH size 000 design for easy installation.
Key Features
- Mersen Protistor® gRB fuse series.
- 63 A rated current.
- 690 V AC IEC / 700 V AC UL rated voltage.
- gRB full-range semiconductor protection.
- NH size 000 construction.
- Silver-plated contacts.
- High current-limiting capability.
- Designed for protection of modern power semiconductors.
Reliable Protection for Industrial Power Electronics
The Mersen P330178 has been developed to interrupt fault currents extremely quickly, helping to minimise the electrical and thermal stress experienced by semiconductor devices during abnormal operating conditions. Its high-speed operation improves equipment reliability while reducing maintenance costs and unexpected downtime.
Its standard NH design enables simple installation into compatible fuse bases and switch disconnectors, making it suitable for OEM machinery, industrial automation systems, motor drives and power conversion equipment operating in demanding industrial environments.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial inverters and converters.
- UPS systems.
- Rectifiers.
- Motor control equipment.
- Industrial automation and OEM machinery.
