Why Choose the Mersen Z076428 Protistor® High-Speed Fuse?
The Mersen Z076428 (Catalogue No. DN00UC10C250L) is a Protistor® NH Size 00 high-speed semiconductor protection fuse engineered to provide ultra-fast short-circuit protection for sensitive power electronic devices. Rated at 250 A and 1000 V AC (IEC), it is specifically designed to protect IGBTs, thyristors, power diodes and other semiconductor components used in industrial power conversion equipment.
Manufactured using precision die-cut silver fuse elements embedded in solidified sand, the Z076428 delivers exceptionally low let-through energy and excellent current-limiting performance. Silver-plated contact blades and non-magnetic hardware help ensure reliable electrical performance, while the integrated striker can operate an optional field-mountable microswitch for remote indication.
With its aR ultra-fast operating characteristic, 120 kA AC breaking capacity and compact NH Size 00 design, the Mersen Z076428 is ideally suited to industrial motor drives, UPS systems, power converters, rectifiers and renewable energy installations requiring dependable semiconductor protection.
Key Advantages
- High-speed aR semiconductor protection fuse.
- 250 A rated current for industrial power electronics.
- 1000 V AC IEC rated voltage.
- Protects IGBTs, thyristors, diodes and semiconductor assemblies.
- 120 kA AC breaking capacity.
- Integrated striker for remote fuse indication.
Key Features
- Mersen Protistor® semiconductor fuse technology.
- NH Size 00 square body construction.
- 250 A rated current.
- 1000 V AC IEC operating voltage.
- Ultra-fast aR operating characteristic.
- DIN 80 silver-plated blade terminals.
- Integrated striker for microswitch operation.
- Designed for industrial semiconductor protection.
Reliable Protection for Industrial Power Electronics
The Mersen Z076428 is engineered to interrupt fault currents within milliseconds, limiting the energy transferred to valuable semiconductor devices. Its ultra-fast operation helps reduce thermal stress, minimise equipment damage and improve overall system reliability in demanding industrial applications.
Protistor® semiconductor fuses are widely specified by OEM manufacturers and electrical engineers for protecting industrial drives, power converters, UPS systems and renewable energy installations where rapid fault clearance is essential for maintaining operational continuity.
Typical Applications
- Variable frequency drives.
- Industrial motor control systems.
- Power converters and rectifiers.
- UPS systems.
- Renewable energy inverters.
- Industrial automation equipment.
