Why Choose the Mersen FR10GR69V3 Semiconductor Fuse?
The Mersen FR10GR69V3 is a compact, ultra-fast semiconductor protection fuse designed to safeguard sensitive power electronic equipment against overload and short-circuit currents. Its fast operating characteristics help protect semiconductor devices by limiting the peak current and electrical energy permitted to pass during a fault.
Featuring a gR utilisation category, the FR10GR69V3 provides full-range protection for semiconductor circuits. This makes it suitable for installations containing diodes, thyristors, rectifiers, inverters and other electronic components that can be damaged rapidly by excessive current.
With a rated current of 3 A and a rated voltage of 690 V AC, this fuse is well suited to low-current industrial power conversion and control applications. Its compact 10 × 38 mm cylindrical format allows straightforward installation in a compatible fuse holder.
Key Advantages
- Ultra-fast fuse designed for semiconductor protection.
- 3 A rated current for low-current electronic circuits.
- 690 V AC voltage rating for industrial electrical equipment.
- gR full-range protection against overloads and short circuits.
- Low let-through energy helps protect sensitive power components.
- Compact 10 × 38 mm cylindrical body for space-efficient installation.
Key Features
- Mersen ultra-fast semiconductor fuse.
- 3 A rated current.
- 690 V AC rated voltage.
- gR utilisation category.
- Fast interruption of overload and short-circuit currents.
- Low I²t performance for semiconductor protection.
- Cylindrical cartridge construction.
- Compatible with suitable 10 × 38 mm fuse holders.
Reliable Protection for Sensitive Power Electronics
Semiconductor components can be damaged within milliseconds when exposed to excessive current. The Mersen FR10GR69V3 is engineered to operate rapidly, helping reduce thermal stress and limit the fault energy reaching protected components.
Its gR operating characteristics provide protection across the full current range, including overload and short-circuit conditions. This makes the fuse suitable for industrial systems requiring faster and more precise protection than a conventional general-purpose fuse can provide.
Typical Applications
- Variable frequency drives and motor control equipment.
- Industrial power supplies and rectifiers.
- Inverters and frequency converters.
- UPS and battery power systems.
- Semiconductor switching circuits.
- Industrial automation and control panels.
