Why Choose the Mersen V084405 MI6SA25V1.25 Miniature Fuse?
The Mersen V084405, catalogue number MI6SA25V1.25, is a compact medium time-lag semiconductor miniature fuse designed to protect sensitive electronic components and control apparatus against overcurrents and short circuits. Its SA operating characteristic allows brief current surges to pass without unnecessary operation while maintaining dependable protection against sustained electrical faults.
With a rated current of 1.25 A and a rated voltage of 250 V AC, the V084405 is suitable for industrial electronics, power supplies, control systems and equipment containing semiconductor devices. Its standard 6.3 x 32 mm cartridge format enables straightforward installation in compatible fuse clips and holders.
The fuse provides a very high breaking capacity of 200 kA, supporting reliable interruption of substantial prospective fault currents. Manufactured by Mersen using high-quality materials, it combines surge tolerance, compact dimensions and consistent electrical performance for demanding industrial applications.
Key Advantages
- Medium time-lag protection for circuits exposed to temporary current surges.
- 1.25 A rated current for sensitive electronic and control circuits.
- 250 V AC rated voltage for industrial equipment.
- Very high 200 kA breaking capacity.
- Helps prevent nuisance operation during normal inrush conditions.
- Standard 6.3 x 32 mm format for convenient replacement.
- Manufactured by Mersen for dependable long-term protection.
Key Features
- Mersen semiconductor miniature fuse range.
- 1.25 A rated current.
- 250 V AC rated voltage.
- Medium time-lag SA operating characteristic.
- Compact 6.3 x 32 mm cartridge construction.
- Clip-mounted installation.
- 200 kA minimum breaking capacity.
- Pre-arcing I²t value of 0.55 A²s.
- Total clearing I²t value of 1 A²s.
Reliable Protection with Surge Tolerance
Medium time-lag fuses are designed to withstand brief current increases produced when power supplies, transformers and electronic equipment are energised. This helps avoid unnecessary fuse replacement during normal start-up conditions while retaining effective protection against sustained overloads.
The Mersen V084405 combines its SA time-current characteristic with an exceptionally high breaking capacity. This makes it suitable for sensitive industrial and electronic circuits requiring dependable fault interruption together with tolerance of short-duration inrush currents.
Typical Applications
- Semiconductor protection circuits.
- Industrial control apparatus.
- Electronic power supplies.
- Control transformers.
- Automation and process equipment.
- Instrumentation and measurement systems.
- OEM electronic assemblies.
- Circuits exposed to temporary start-up currents.
