Why Choose the Mersen NH1GS69V250PV High-Speed Fuse?
The Mersen NH1GS69V250PV is a high-performance Protistor® NH size 1 high-speed semiconductor fuse engineered to provide advanced protection for power semiconductor devices and modern power conversion equipment. Designed for demanding industrial applications, this fuse delivers rapid fault interruption and low let-through energy to minimise damage caused by short-circuit conditions.
As part of the renowned Mersen Protistor® NH gS series, the NH1GS69V250PV offers comprehensive protection for semiconductor devices including diodes, thyristors, GTOs and IGBTs. Its silver-plated contacts, pure silver fuse elements and solidified sand construction ensure excellent current-limiting performance and high interrupting capacity for reliable operation in industrial environments.
With a rated current of 250 A and a rated voltage of 690 V AC (IEC) / 700 V AC (UL), this NH size 1 fuse is ideal for industrial drives, inverters, rectifiers, UPS systems and photovoltaic power conversion equipment. The fuse incorporates a double visual indicator for simplified maintenance and fault identification.
Key Advantages
- High-speed Protistor® semiconductor protection fuse.
- 250 A current rating for industrial power electronics.
- 690 V AC IEC / 700 V AC UL voltage rating.
- Designed to protect diodes, thyristors, GTOs and IGBT devices.
- Integrated double visual fuse indicator for rapid maintenance.
- Low let-through energy helps minimise semiconductor damage.
Key Features
- Mersen Protistor® NH gS semiconductor fuse.
- 250 A rated current.
- 690 V AC IEC / 700 V AC UL rating.
- NH size 1 fuse body.
- Double indicator for fast fuse status identification.
- Silver-plated blade contacts for dependable conductivity.
- Pure silver fuse elements embedded in solidified sand.
- Suitable for DIN NH fuse bases and switch disconnectors.
Reliable Protection for Power Electronics
High-speed semiconductor fuses such as the Mersen NH1GS69V250PV are specifically designed to interrupt fault currents before excessive energy reaches sensitive semiconductor devices. Their advanced current-limiting performance helps improve equipment reliability while reducing repair costs and production downtime.
The Protistor® NH gS range is widely used throughout industrial automation, renewable energy, motor control and power conversion systems where dependable protection of semiconductor components is essential for safe and continuous operation.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial power converters.
- Rectifiers and inverters.
- Uninterruptible power supplies (UPS).
- Photovoltaic power conversion equipment.
- Industrial automation and motor control systems.
