Why Choose the Mersen E218159 MI5SM25V5 Miniature Fuse?
The Mersen E218159 (MI5SM25V5) is a dependable 5 x 20 mm medium time-lag miniature fuse designed to protect electrical distribution circuits, industrial equipment and control systems against overloads and short circuits. As part of the Mersen 5SM IEC miniature fuse series, it provides reliable overcurrent protection while tolerating brief current surges during normal equipment operation.
This miniature fuse has a rated current of 5 A and a rated voltage of 250 V AC. Its medium time-lag operating characteristic helps prevent unnecessary fuse operation when equipment experiences short-duration inrush currents, while still interrupting sustained overloads and fault currents.
Manufactured in the standard 5 x 20 mm glass cartridge format, the Mersen E218159 features nickel-plated brass contact caps and an extinguishing agent for dependable fault interruption. Its compact dimensions make it suitable for compatible fuse clips and holders used in industrial machinery, electrical equipment, power supplies and automation systems.
Key Advantages
- Reliable medium time-lag overcurrent protection.
- 5 A rated current for industrial and electrical equipment.
- 250 V AC rated voltage.
- Tolerates brief start-up and inrush currents.
- 300 A AC breaking capacity for dependable fault interruption.
- Standard 5 x 20 mm miniature fuse dimensions.
Key Features
- Mersen 5SM IEC miniature fuse series.
- 5 A rated current.
- 250 V AC rated voltage.
- Medium time-lag operating characteristic.
- 5 x 20 mm glass cartridge format.
- 300 A AC breaking capacity.
- Nickel-plated brass contact caps.
- RoHS-compliant construction.
Reliable Medium Time-Lag Circuit Protection
Medium time-lag fuses such as the Mersen E218159 are designed to withstand temporary current surges that can occur when transformers, power supplies, motors and capacitive loads are energised. This helps reduce nuisance fuse operation during normal equipment start-up.
If an overload or short circuit continues beyond the permitted time-current limits, the fuse element safely interrupts the electrical path. Its glass cartridge construction, extinguishing agent and 300 A breaking capacity help protect wiring, control components and connected equipment from excessive current.
Typical Applications
- Industrial electrical equipment.
- Electrical distribution circuits.
- Control panels and automation systems.
- Power supplies and transformer circuits.
- Electronic equipment and assemblies.
- OEM machinery and instrumentation.
