Why Choose the Mersen NH1UD69V63PV Protistor® High-Speed Fuse?
The Mersen NH1UD69V63PV is a premium NH Size 1 square body high-speed semiconductor protection fuse from the trusted Mersen Protistor® series. Designed specifically to protect sensitive power electronic equipment, this ultra-fast aR fuse safeguards IGBTs, thyristors, GTOs, diodes and other semiconductor devices against damaging short-circuit currents while delivering exceptional current-limiting performance.
Manufactured using pure silver fuse elements embedded in high-grade silica sand, the NH1UD69V63PV offers low let-through energy (I²t), silver-plated contacts and a high breaking capacity for dependable protection in demanding industrial environments. Its NH Size 1 construction enables installation in standard NH modular fuse holders and switch disconnectors for worldwide compatibility.
With a 63 A rated current and 690 V AC IEC / 700 V AC UL operating voltage, this fuse is ideal for protecting industrial drives, converters, UPS systems, renewable energy equipment and other power conversion applications requiring rapid semiconductor protection.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 63 A rated current for industrial power electronic systems.
- 690 V AC IEC / 700 V AC UL voltage rating.
- Protects IGBTs, thyristors, GTOs and other semiconductor devices.
- Low I²t performance minimises equipment damage during fault conditions.
- Double visual indicator simplifies maintenance and fuse monitoring.
Key Features
- Mersen Protistor® high-speed fuse series.
- Model: NH1UD69V63PV.
- 63 A rated current.
- 690 V AC IEC / 700 V AC UL rated voltage.
- aR operating class for semiconductor protection.
- NH Size 1 square body construction.
- Double visual indicator.
- Silver-plated plain blade contacts.
Reliable Protection for Industrial Power Electronics
The Mersen NH1UD69V63PV is engineered to interrupt fault currents rapidly before they can damage expensive semiconductor devices. Its low energy let-through characteristics help improve equipment reliability, reduce maintenance costs and minimise production downtime.
Designed for modern power conversion equipment, the Protistor® NH series provides reliable protection in industrial automation, renewable energy installations, motor drives and other demanding electrical applications.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor drives.
- Power converters and rectifiers.
- UPS systems.
- Renewable energy inverters.
- Industrial automation and semiconductor protection.
