Why Choose the Mersen NH3GS69V250PV High-Speed Fuse?
The Mersen NH3GS69V250PV is a premium Protistor® NH Size 3 high-speed semiconductor fuse engineered to provide dependable protection for modern power electronic equipment. Manufactured by Mersen, this fuse delivers rapid fault interruption for semiconductor devices including IGBTs, thyristors, GTOs and power diodes used in demanding industrial applications.
As part of the trusted Mersen Protistor® NH Size 3 gS series, the NH3GS69V250PV provides full-range protection against overload and short-circuit faults. Built with pure silver fuse elements embedded in solidified sand and silver-plated contact surfaces, it delivers low I²t performance, high interrupting capacity and exceptional reliability for power conversion systems.
With a rated current of 250 A and a 690 V AC IEC / 700 V AC UL voltage rating, the NH3GS69V250PV is ideally suited for variable frequency drives, converters, UPS systems, renewable energy equipment and industrial motor control applications requiring reliable semiconductor protection.
Key Advantages
- High-speed gS semiconductor fuse providing full-range protection.
- 250 A current rating for industrial power applications.
- 690 V AC IEC / 700 V AC UL voltage rating.
- 160 kA breaking capacity for outstanding fault interruption.
- Double visual indicator simplifies maintenance.
- Low I²t performance helps protect expensive semiconductor devices.
Key Features
- Mersen Protistor® NH Size 3 gS series.
- 250 A rated current.
- 690 V AC IEC / 700 V AC UL.
- gS full-range operating characteristic.
- NH Size 3 square body construction.
- Plain blade terminals.
- Double visual indicator.
- Pure silver fuse elements with silver-plated contacts.
Reliable Protection for Industrial Power Electronics
High-speed semiconductor fuses are specifically designed to clear fault currents before they can damage sensitive power electronic components. Their rapid response and low energy let-through characteristics reduce thermal stress while helping maximise equipment reliability and minimise downtime.
The Mersen Protistor® NH gS range is widely used in industrial power conversion systems where both overload and short-circuit protection are required for semiconductor equipment and associated circuits.
Typical Applications
- Variable frequency drives.
- Industrial motor control systems.
- Power converters and rectifiers.
- UPS systems.
- Renewable energy power conversion equipment.
- Industrial automation and electrical distribution panels.
