Why Choose the Mersen NH00UD69V25PV High-Speed Semiconductor Fuse?
The Mersen NH00UD69V25PV is a Protistor® NH Size 00 high-speed semiconductor fuse engineered to provide exceptional protection for sensitive power electronic equipment. Designed with an aR operating characteristic, it delivers ultra-fast short-circuit protection for semiconductors such as diodes, thyristors, GTOs and IGBTs while helping minimise damage caused by fault currents.
Manufactured using pure silver fuse elements embedded in solidified silica sand within a robust ceramic body, the NH00UD69V25PV offers excellent current-limiting performance, low let-through energy (I²t) and a high breaking capacity. Silver-plated contacts ensure low resistance and dependable long-term performance in demanding industrial environments.
Rated at 25 A, with a 690 V AC IEC and 700 V AC UL voltage rating, this NH Size 00 fuse features plain blade terminals with a double indicator system for simplified maintenance. It is ideal for industrial drives, UPS systems, converters and renewable energy applications requiring reliable semiconductor protection.
Key Advantages
- Protistor® aR high-speed semiconductor fuse.
- 25 A current rating for industrial semiconductor protection.
- 690 V AC IEC / 700 V AC UL voltage rating.
- Ultra-fast current-limiting characteristics.
- Double visual indicator simplifies maintenance.
- Compatible with NH Size 00 fuse systems.
Key Features
- Mersen Protistor® semiconductor fuse.
- Catalogue number NH00UD69V25PV.
- NH Size 00 square-body fuse.
- 25 A rated current.
- 690 V AC IEC / 700 V AC UL.
- aR operating class according to IEC 60269-4.
- Plain blade contacts.
- Double visual indicator.
- Silver-plated contact surfaces.
- High interrupting rating up to 170 kA.
Reliable Protection for Industrial Power Electronics
The Mersen NH00UD69V25PV has been specifically developed to protect modern semiconductor devices from destructive short-circuit currents. Its ultra-fast response limits thermal stress and significantly reduces the energy transferred to expensive power electronic components, helping maximise equipment uptime and reliability.
Its NH Size 00 design enables installation into standard NH fuse holders and fuse switch disconnectors, making it suitable for OEM equipment, industrial machinery and maintenance replacement across a wide range of power conversion applications.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial inverters.
- UPS systems.
- Power converters.
- Motor drives.
- Renewable energy equipment.
- Industrial automation systems.
- Semiconductor power protection.
