Why Choose the Mersen NH0UD69V40PV High-Speed Semiconductor Fuse?
The Mersen NH0UD69V40PV is a Protistor® NH Size 0 high-speed semiconductor fuse designed to provide reliable short-circuit protection for modern power electronic equipment. Featuring an ultra-fast aR operating characteristic, it is engineered to safeguard sensitive semiconductor devices including IGBTs, thyristors, diodes and rectifier assemblies against damaging fault currents.
Rated at 40 A with a 690 V AC (IEC) and 700 V AC (UL) voltage rating, the NH0UD69V40PV is suitable for industrial drives, power converters, UPS systems, renewable energy equipment and other demanding applications. Manufactured in the internationally recognised NH Size 0 format, it installs into compatible DIN 43620 NH fuse bases and fuse switch disconnectors.
The fuse is manufactured using pure silver fuse elements embedded in solidified quartz sand with silver-plated contacts to achieve low let-through energy and high interrupting performance. A double visual indicator allows rapid identification of an operated fuse and can be used with an optional microswitch for remote indication.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 40 A current rating.
- 690 V AC IEC / 700 V AC UL operation.
- 170 kA AC breaking capacity.
- Low I²t performance helps minimise semiconductor damage.
- Double visual indicator simplifies maintenance.
Key Features
- Mersen Protistor® Series.
- Catalogue number: NH0UD69V40PV.
- Item number: V320247.
- 40 A rated current.
- 690 V AC IEC / 700 V AC UL.
- Ultra-fast aR operating characteristic.
- NH Size 0 square-body construction.
- Plain silver-plated blade contacts with double indicator.
Designed for Reliable Semiconductor Protection
Protistor® semiconductor fuses are specifically engineered for high-performance power conversion systems where semiconductor devices require extremely rapid protection against short-circuit faults. Their low I²t characteristics minimise thermal and mechanical stress, helping extend equipment life while reducing maintenance costs.
The NH0UD69V40PV is widely used in variable speed drives, UPS systems, industrial converters and renewable energy installations where dependable semiconductor protection is essential.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial inverters.
- Power converters.
- UPS systems.
- Industrial rectifiers.
- Motor drives.
- Renewable energy systems.
- OEM industrial machinery.
