Why Choose the Mersen NH2GS69V400PV High-Speed Fuse?
The Mersen NH2GS69V400PV is a premium NH Size 2 high-speed semiconductor fuse link engineered to deliver exceptional protection for power semiconductor devices in industrial power conversion systems. As part of the trusted Mersen Protistor® gS series, it provides full-range protection against overloads and short circuits, helping to maximise the reliability of sensitive power electronics including IGBTs, thyristors, diodes and rectifiers.
Manufactured using pure silver fuse elements embedded in solidified silica sand, the NH2GS69V400PV offers excellent current-limiting performance with low let-through energy (I²t). Silver-plated contacts and non-magnetic construction ensure dependable electrical performance, while the integrated double visual indicator enables rapid identification of an operated fuse during maintenance.
With a 400 A rated current, 690 V AC IEC rating and 700 V AC UL rating, this fuse is ideal for protecting industrial drives, UPS systems, converters, inverters and other high-power electronic equipment. Its standard NH Size 2 blade-contact design provides worldwide compatibility with NH modular fuse systems.
Key Advantages
- High-speed gS semiconductor protection fuse.
- 400 A rated current for demanding industrial applications.
- 690 V AC IEC / 700 V AC UL voltage rating.
- Low let-through energy helps minimise semiconductor damage.
- Integrated double visual indicator for fast maintenance checks.
- Standard NH Size 2 blade-contact construction.
Key Features
- Mersen Protistor® gS series.
- NH Size 2 square-body fuse.
- 400 A rated current.
- 690 V AC IEC / 700 V AC UL.
- gS operating class providing full-range semiconductor protection.
- Silver-plated blade contacts.
- Double visual operation indicator.
- Highly current-limiting with excellent cycling capability.
Advanced Protection for Industrial Power Electronics
The Mersen NH2GS69V400PV has been specifically developed for modern power electronic systems where rapid fault interruption is essential. Its highly current-limiting design reduces thermal and mechanical stress on semiconductor devices, helping extend equipment life while reducing costly downtime.
The fuse is compatible with standard NH Size 2 fuse bases and switch disconnectors, allowing straightforward installation into industrial control panels and power distribution systems. The gS operating class provides both overload and short-circuit protection for semiconductor equipment without requiring additional back-up protection in many applications.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial inverters and converters.
- Uninterruptible power supplies (UPS).
- Motor drives and soft starters.
- Power semiconductor protection.
- Industrial automation and electrical distribution equipment.
