Why Choose the Mersen NH0UD69V50PV Protistor® High-Speed Fuse?
The Mersen NH0UD69V50PV (Item No. Z320251) is a Protistor® NH Size 0 high-speed semiconductor protection fuse engineered to provide ultra-fast short-circuit protection for sensitive power electronic devices. Rated at 50 A and 690 V AC (IEC) / 700 V AC (UL), it is specifically designed to protect IGBTs, thyristors, GTOs, power diodes and rectifier assemblies used in industrial power conversion equipment.
Manufactured using precision die-cut pure silver fuse elements embedded in solidified sand, the NH0UD69V50PV delivers exceptionally low let-through energy and outstanding current-limiting performance. Silver-plated contact blades, non-magnetic hardware and an integrated double indicator provide dependable long-term operation while simplifying maintenance.
Designed to DIN NH standards for worldwide compatibility with NH modular fuse systems, this Protistor® fuse offers reliable protection for variable speed drives, UPS systems, industrial converters, renewable energy inverters and other demanding semiconductor applications.
Key Advantages
- High-speed aR semiconductor protection fuse.
- 50 A rated current for industrial power electronics.
- 690 V AC IEC / 700 V AC UL rated voltage.
- Protects IGBTs, thyristors, GTOs and power diodes.
- 170 kA AC breaking capacity.
- Integrated double visual indicator for simplified maintenance.
Key Features
- Mersen Protistor® NH Size 0 semiconductor fuse.
- 50 A rated current.
- 690 V AC IEC / 700 V AC UL operation.
- aR ultra-fast operating characteristic.
- NH Size 0 square body construction.
- Double visual blown fuse indicator.
- Silver-plated blade contacts.
- Designed for industrial semiconductor protection.
Reliable Protection for Industrial Power Electronics
The Mersen NH0UD69V50PV is designed to interrupt damaging fault currents within milliseconds, limiting the electrical and thermal energy transferred to sensitive semiconductor devices. This helps minimise equipment damage, extend component life and improve overall system reliability.
Protistor® semiconductor fuses are widely specified by OEM manufacturers and electrical engineers for protecting industrial drives, converters, UPS systems, renewable energy equipment and other critical power electronic installations where rapid 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.
