MERSEN FUSE 500V SA 4 A 6.32 MI6SA50V4

Why Choose the Mersen G085451 Medium Time-Lag Miniature Fuse?

The Mersen G085451, catalogue reference MI6SA50V4, is a compact semiconductor miniature fuse designed to provide dependable overcurrent protection for sensitive electronic components. Its medium time-lag SA operating characteristic allows brief current surges to pass without unnecessary fuse operation while still responding to sustained overloads and short circuits.

Part of Mersen's 6.3 × 32 mm, 500 V SA miniature fuse range, the G085451 is engineered for electronic and industrial circuits where temporary inrush currents occur during normal operation. Its cylindrical cartridge construction allows convenient clip mounting in a compatible fuse holder, simplifying installation, inspection and replacement.

With a rated current of 4 A and a rated voltage of 500 V AC, the Mersen G085451 is suitable for power supplies, control equipment, semiconductor circuits and industrial electronics. Its surge-tolerant performance helps improve equipment reliability while maintaining effective protection against damaging fault currents.

Key Advantages

• Medium time-lag SA characteristic accommodates short-duration current surges.
• 4 A rated current for electronic and industrial circuits.
• 500 V AC rated voltage for demanding electrical applications.
• Compact 6.3 × 32 mm cartridge fuse format.
• Designed to protect sensitive semiconductor and electronic components.
• Helps reduce nuisance fuse operation during normal inrush conditions.
• Clip mounting supports straightforward installation and replacement.
• High breaking capacity supports dependable fault interruption.

Key Features

• Mersen semiconductor miniature fuse.
• Manufacturer item number G085451.
• Catalogue reference MI6SA50V4.
• 4 A rated current.
• 500 V AC rated voltage.
• Medium time-lag SA operating characteristic.
• 6.3 × 32 mm nominal fuse size.
• Cylindrical cartridge configuration.
• Clip-mounted installation.
• Suitable for circuits affected by temporary inrush currents.

Surge-Tolerant Protection for Sensitive Electronics

Power supplies, capacitive circuits and electronic equipment can draw a temporary surge of current when energised. A fuse with an excessively rapid response may operate during this normal start-up condition, causing avoidable downtime and maintenance.

The Mersen G085451 uses a medium time-lag characteristic to tolerate short-duration inrush currents while continuing to protect against sustained overloads and short circuits. This balance makes it suitable for semiconductor devices, electronic controls and industrial equipment requiring reliable protection without frequent nuisance operation.

Typical Applications

• Semiconductor device protection.
• Industrial power supplies.
• Electronic control equipment.
• Industrial automation systems.
• Instrumentation and measurement equipment.
• Power conversion equipment.
• Circuits with temporary start-up currents.
• OEM electrical and electronic assemblies.