Why Choose the Mersen NH000UD69V63PV Protistor® High-Speed Fuse?
The Mersen NH000UD69V63PV (Item Number L320055) is a premium Protistor® NH Size 000 high-speed semiconductor fuse designed to provide exceptional short-circuit protection for modern power electronic equipment. Rated at 63 A with a voltage rating of 690 V AC (IEC) / 700 V AC (UL), it delivers ultra-fast fault interruption to protect sensitive semiconductor devices including IGBTs, thyristors, GTOs and diodes.
Featuring an aR utilisation category, the NH000UD69V63PV is specifically engineered for semiconductor short-circuit protection. Manufactured using precision die-cut pure silver fuse elements embedded in solidified silica sand, it offers extremely low let-through energy, excellent current limitation and dependable interrupting performance under demanding industrial operating conditions.
Manufactured to DIN NH standards with plain silver-plated blade contacts and a double visual indicator, this compact NH Size 000 fuse integrates seamlessly into NH modular fuse holders and switch disconnectors, making it ideal for industrial drives, UPS systems, renewable energy equipment and power conversion applications.
Key Advantages
- Ultra-fast aR semiconductor protection.
- 63 A current rating.
- 690 V AC IEC / 700 V AC UL voltage rating.
- Very low I²t protects valuable semiconductor devices.
- Current-limiting design minimises thermal and mechanical stress.
- Double visual indicator for rapid fuse status identification.
Key Features
- Mersen Protistor® NH000UD69V63PV.
- Item number L320055.
- NH Size 000 square-body fuse.
- 63 A nominal current rating.
- 690 V AC IEC / 700 V AC UL.
- aR utilisation category.
- Plain silver-plated blade contacts.
- Double visual indicator.
- Pure silver fuse elements.
- Solidified silica sand filling.
- Non-magnetic construction.
Designed for Reliable Semiconductor Protection
Protistor® aR semiconductor fuses are specifically engineered to interrupt high fault currents before sensitive semiconductor devices can be damaged. Their extremely fast operating characteristics minimise thermal stress, reduce equipment downtime and help extend the service life of industrial power electronic systems.
The NH000UD69V63PV is fully compatible with NH modular fuse holders and fuse switch disconnectors manufactured to DIN standards, providing straightforward installation together with dependable long-term protection for industrial equipment.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial power converters.
- UPS systems.
- Renewable energy inverter systems.
- Servo drives and motor control equipment.
- Industrial rectifiers.
- Protection of IGBTs, thyristors, GTOs and diode modules.
- General semiconductor power conversion equipment.
