Why Choose the Mersen NH2GS69V450PV High-Speed Semiconductor Fuse?
The Mersen NH2GS69V450PV is a Protistor® NH Size 2 high-speed semiconductor fuse engineered to provide comprehensive protection for modern power electronic equipment. Featuring a gS operating class, it delivers both overload and short-circuit protection for semiconductor devices including diodes, thyristors, GTOs and IGBTs, making it ideal for demanding industrial applications.
Manufactured with precision silver fuse elements embedded in solidified silica sand within a durable ceramic body, the NH2GS69V450PV offers exceptional current-limiting performance, low I²t values and high interrupting capacity. Silver-plated contact surfaces minimise resistance while the integrated double visual indicator simplifies maintenance and replacement.
Rated at 450 A, with 690 V AC IEC and 700 V AC UL voltage ratings, this NH Size 2 fuse is designed for installation in standard NH fuse holders and switch disconnectors. It is widely used in variable speed drives, UPS systems, industrial converters, renewable energy systems and other high-performance power conversion equipment.
Key Advantages
- Protistor® gS full-range semiconductor protection.
- 450 A rated current.
- 690 V AC IEC / 700 V AC UL voltage rating.
- Protects against both overload and short-circuit faults.
- Double visual indicator for simplified maintenance.
- High interrupting capacity with excellent current-limiting performance.
Key Features
- Mersen Protistor® semiconductor fuse.
- Catalogue number NH2GS69V450PV.
- NH Size 2 square-body fuse.
- 450 A current rating.
- 690 V AC IEC / 700 V AC UL.
- gS operating class according to IEC 60269-4.
- Double visual indicator.
- Silver-plated contacts.
- Current-limiting construction using pure silver fuse elements.
- Suitable for standard NH fusegear without derating.
Reliable Protection for Industrial Power Electronics
The Mersen NH2GS69V450PV is designed to provide comprehensive protection for semiconductor equipment operating under demanding industrial conditions. Its gS characteristic protects against both overloads and short-circuit faults while maintaining low I²t values that minimise thermal stress on expensive semiconductor devices.
Its NH Size 2 construction allows direct installation into standard NH modular fuse holders and switch disconnectors, making it suitable for both OEM equipment and maintenance replacement across industrial automation, renewable energy and power conversion systems.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial inverters.
- UPS systems.
- Power converters.
- Motor drives.
- Renewable energy systems.
- Industrial automation equipment.
- Semiconductor power protection.
