Why Choose the Mersen NH3UD69V800PV High-Speed Semiconductor Fuse?
The Mersen NH3UD69V800PV is a premium high-speed semiconductor fuse engineered to provide maximum protection for modern power electronic equipment. As part of the renowned Mersen Protistor® NH series, this ultra-fast aR fuse is specifically designed to protect sensitive semiconductor devices from damaging short-circuit currents while ensuring maximum system reliability and operational continuity.
Manufactured for demanding industrial environments, the NH3UD69V800PV delivers extremely fast fault interruption with low let-through energy, making it ideal for protecting IGBTs, thyristors, diodes, GTOs and rectifier assemblies. Its NH Size 3 construction complies with DIN 43620, allowing straightforward installation in compatible NH fuse bases and fuse switch disconnectors used worldwide.
With a rated current of 800 A, 690 V AC IEC / 700 V AC UL voltage rating and a 170 kA breaking capacity, the Mersen NH3UD69V800PV is an excellent choice for protecting variable frequency drives, industrial inverters, UPS systems, renewable energy equipment and other high-power conversion applications.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 800 A current rating for high-power industrial applications.
- 690 V AC IEC / 700 V AC UL rated operation.
- 170 kA breaking capacity for exceptional fault protection.
- Double visual indicator simplifies maintenance.
- Designed for protection of IGBTs, thyristors, diodes and other semiconductor devices.
Key Features
- Mersen Protistor® NH semiconductor fuse.
- NH Size 3 construction.
- 800 A rated current.
- 690 V AC IEC / 700 V AC UL voltage rating.
- aR ultra-fast operating characteristic.
- Double visual trip indicator.
- Silver-plated plain blade contacts.
- Designed for industrial semiconductor protection.
Reliable Protection for High-Power Electronics
High-speed semiconductor fuses are designed to interrupt short-circuit currents before they can damage expensive power electronic components. Their low let-through energy significantly reduces thermal stress, helping to improve equipment reliability and minimise costly downtime.
The Mersen NH3UD69V800PV is widely specified by OEM manufacturers and industrial engineers for high-power drives, converters and renewable energy installations where dependable semiconductor protection is essential.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial inverters.
- UPS systems.
- Power converters.
- Motor drives.
- Industrial rectifiers.
- Renewable energy power systems.
- OEM industrial machinery.
