Why Choose the Mersen Y330025 Protistor® High-Speed Fuse?
The Mersen Y330025 (Catalogue No. DN000UB69V125V) is a Protistor® NH Size 000 high-speed semiconductor protection fuse designed to provide ultra-fast short-circuit protection for sensitive power electronic devices. Rated at 125 A and 690 V AC (IEC), it is specifically engineered to protect IGBTs, thyristors, diodes and other semiconductor components used in industrial power conversion equipment.
Manufactured using precision die-cut silver fuse elements embedded in solidified sand, the Y330025 delivers exceptionally low let-through energy and high interrupting performance. Silver-plated contact blades and non-magnetic hardware further enhance electrical performance and reliability in demanding industrial environments.
Featuring a visual fuse indicator and DIN 80 blade terminals, the Mersen Y330025 is ideal for industrial drives, UPS systems, converters, rectifiers and renewable energy installations where rapid semiconductor protection is critical.
Key Advantages
- High-speed aR semiconductor protection fuse.
- 125 A rated current for industrial power electronics.
- 690 V AC IEC rated voltage.
- Protects IGBTs, thyristors, diodes and semiconductor assemblies.
- Low let-through energy helps minimise semiconductor damage.
- Visual operation indicator simplifies maintenance.
Key Features
- Mersen Protistor® semiconductor fuse technology.
- NH Size 000 square body construction.
- 125 A rated current.
- 690 V AC IEC / 690 V AC UL rating.
- Ultra-fast aR operating characteristic.
- Visual fuse operation indicator.
- DIN 80 silver-plated blade terminals.
- Suitable for industrial semiconductor protection applications.
Reliable Protection for Industrial Power Electronics
The Mersen Y330025 is engineered to interrupt fault currents within milliseconds, significantly reducing the energy transferred to protected semiconductor devices. This helps prevent costly failures while extending the operational life of industrial power electronic equipment.
Protistor® semiconductor fuses are widely specified by OEM manufacturers and electrical engineers for protecting critical equipment in variable speed drives, converters, UPS systems and renewable energy installations where fast fault clearance is essential.
Typical Applications
- Variable frequency drives.
- Industrial motor control systems.
- Power converters and rectifiers.
- UPS systems.
- Renewable energy inverters.
- Industrial automation equipment.
