Why Choose the Mersen S078814 High-Speed Cylindrical Fuse?
The Mersen S078814, also identified as FR20GB10C12P and 20GB10V12P, is a high-performance high-speed cylindrical fuse designed to protect sensitive semiconductor devices and industrial power electronic equipment against damaging overcurrent and short-circuit conditions. Its ultra-rapid operating characteristics help limit the fault energy passed into vulnerable electrical components.
Featuring a gLB utilisation category, the S078814 provides dependable protection for circuits containing power semiconductors. Its robust cylindrical construction supports reliable operation in demanding industrial environments, while the integrated striker can be used to indicate when the fuse has operated.
With a rated current of 12 A, a rated voltage of 1000 V AC and a compact 20 × 127 mm body, the Mersen S078814 is suitable for drives, converters, rectifiers, power supplies and other installations requiring rapid and effective semiconductor protection.
Key Advantages
- High-speed fuse designed for semiconductor protection.
- 12 A rated current for industrial power electronic circuits.
- 1000 V AC voltage rating for high-voltage applications.
- gLB utilisation category for dependable circuit protection.
- Rapid fault interruption helps minimise damage to sensitive components.
- Integrated striker provides clear fuse operation indication.
Key Features
- Mersen high-speed fuse technology.
- Manufacturer part number: S078814.
- Product reference: FR20GB10C12P.
- Alternative reference: 20GB10V12P.
- Rated current: 12 A.
- Rated voltage: 1000 V AC.
- Fuse dimensions: 20 × 127 mm.
- Utilisation category: gLB.
Reliable Protection for Industrial Power Electronics
High-speed fuses are engineered to interrupt electrical faults more rapidly than conventional industrial fuses. This helps reduce peak current and thermal energy, protecting sensitive components such as diodes, thyristors, rectifiers, power modules and semiconductor switching devices.
The Mersen S078814 combines rapid fault interruption with a high operating voltage and compact cylindrical format. It provides an effective protection solution for industrial systems where low let-through energy, reliable operation and clear fuse status indication are important.
Typical Applications
- Variable speed drives and motor control equipment.
- Industrial rectifiers and inverters.
- Power conversion systems.
- Uninterruptible power supplies.
- Semiconductor switching equipment.
- Industrial control panels and power supplies.
