Why Choose the Mersen NH2UD69V700PV Protistor® High-Speed Fuse?
The Mersen NH2UD69V700PV is a Protistor® NH size 2 high-speed semiconductor fuse engineered to provide advanced protection for modern power electronic equipment. Designed with an aR operating characteristic, this fuse delivers ultra-fast short-circuit protection for sensitive semiconductor devices including diodes, thyristors, GTOs and IGBTs. The NH style construction conforms to DIN 43620, allowing installation in compatible NH fuse bases and switch disconnectors worldwide.
Rated at 700 A and 690 V AC (IEC) / 700 V AC (UL), the NH2UD69V700PV provides outstanding current-limiting performance with low let-through energy (I²t). Pure silver fuse elements embedded in solidified silica sand, together with silver-plated blade contacts, provide high breaking capacity and dependable protection for valuable semiconductor equipment.
The fuse incorporates a double visual indicator that can be used with compatible microswitch accessories for remote signalling. It is ideal for industrial drives, power converters, UPS systems, renewable energy installations, rectifiers and other demanding power conversion applications.
Key Advantages
- Genuine Mersen Protistor® semiconductor protection fuse.
- 700 A current rating.
- 690 V AC IEC / 700 V AC UL rated voltage.
- aR ultra-fast operating characteristic for semiconductor protection.
- Double visual indicator with optional remote signalling capability.
- Low I²t performance helps protect expensive semiconductor devices.
Key Features
- Manufacturer: Mersen
- Manufacturer item number: J320490
- Catalogue reference: NH2UD69V700PV
- Protistor® NH high-speed semiconductor fuse.
- NH size 2 construction.
- Plain silver-plated blade contacts.
- aR operating class.
- Double visual fuse indicator.
Engineered for Semiconductor Protection
Protistor® semiconductor fuses are specifically designed to interrupt high fault currents before excessive thermal energy reaches sensitive semiconductor devices. Their advanced current-limiting characteristics reduce equipment damage, minimise downtime and improve the reliability of industrial power conversion systems.
The NH2UD69V700PV is suitable for protecting converters, inverters, motor drives, UPS systems and renewable energy equipment operating on high-power AC circuits where dependable semiconductor protection is essential.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial power converters.
- Rectifiers and inverters.
- UPS systems.
- Photovoltaic and renewable energy equipment.
- Industrial automation and motor control.
- Semiconductor protection in power conversion systems.
