Why Choose the Mersen NH3GS69V315PV Protistor® High-Speed Fuse?
The Mersen NH3GS69V315PV is a high-performance NH Size 3 high-speed semiconductor fuse designed to protect power electronic equipment against damaging overload and short-circuit currents. Part of the established Mersen Protistor® fuse range, it combines rapid fault interruption with full-range protection for semiconductor devices and their associated conductors.
Its gS utilisation category makes the NH3GS69V315PV suitable for applications that require both semiconductor and cable protection from a single fuse. The fuse limits peak current and let-through energy during electrical faults, helping protect sensitive components such as IGBTs, thyristors, diodes and rectifier assemblies.
With a rated current of 315 A and a rated operating voltage of up to 690 V AC, this NH fuse is well suited to industrial drives, power converters, UPS equipment and renewable energy systems. Its standard NH Size 3 format supports straightforward installation in compatible fuse bases and switch-disconnectors.
Key Advantages
- High-speed gS fuse for semiconductor and conductor protection.
- 315 A rated current for high-power industrial equipment.
- 690 V AC rated voltage for low-voltage power systems.
- Low let-through energy helps protect sensitive electronic components.
- Excellent current-limiting performance during fault conditions.
- Standard NH Size 3 format for compatible fuse systems.
- Visual indication supports efficient inspection and maintenance.
Key Features
- Mersen Protistor® high-speed fuse series.
- NH3GS69V315PV product reference.
- 315 A rated current.
- 690 V AC rated voltage.
- gS full-range utilisation category.
- NH Size 3 square-body construction.
- Designed for power semiconductor and cable protection.
- Low I²t characteristics for reduced fault energy.
- High breaking capacity for demanding industrial systems.
- Blade contacts for installation in compatible NH fuse holders.
Reliable Protection for High-Power Electronics
High-speed fuses operate more rapidly than conventional industrial fuses, restricting the current and energy that pass through a circuit during a fault. This fast response is particularly important in power electronic systems, where semiconductor components can be damaged before a standard fuse has time to interrupt the current.
The Mersen NH3GS69V315PV provides full-range gS protection, helping safeguard both sensitive semiconductor devices and the conductors connected to them. This combined protection can simplify system design while supporting reliable operation and reduced equipment downtime.
Typical Applications
- Variable frequency drives and industrial motor drives.
- Power converters and rectifier systems.
- Uninterruptible power supply equipment.
- Industrial inverters and soft starters.
- Renewable energy conversion systems.
- Battery energy storage equipment.
- Industrial automation and control panels.
- OEM power electronic machinery.
