Why Choose the Mersen E216618 MI5SM25V3.15 Miniature Fuse?
The Mersen E216618 (MI5SM25V3.15) is a dependable 5 x 20 mm medium time-lag miniature fuse designed to protect electrical distribution circuits, industrial control equipment and electronic systems against overloads and short circuits. As part of the Mersen 5SM IEC miniature fuse series, it combines compact dimensions with reliable protection for applications that may experience brief current surges.
This miniature fuse has a rated current of 3.15 A and a rated voltage of 250 V AC. Its medium time-lag operating characteristic allows it to tolerate temporary inrush currents while still disconnecting the circuit during sustained overloads or fault conditions.
Manufactured in the standard 5 x 20 mm glass cartridge format, the Mersen E216618 is suitable for installation in compatible fuse clips and holders. Its 300 A AC breaking capacity provides dependable interruption of fault currents in industrial machinery, control panels, power supplies and electrical equipment.
Key Advantages
- Reliable medium time-lag overcurrent protection.
- 3.15 A rated current for industrial and electronic circuits.
- 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.
- 3.15 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.
- Clip-mounted design with ferrule end caps.
- RoHS-compliant construction.
Reliable Medium Time-Lag Circuit Protection
Medium time-lag fuses such as the Mersen E216618 are designed to withstand short-duration current surges that can occur when power supplies, transformers, motors and capacitive loads are energised. This helps prevent unnecessary 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. This helps protect wiring, control components and connected equipment from damage caused by excessive current.
Typical Applications
- Industrial control panels.
- Electrical distribution circuits.
- Power supplies and transformer circuits.
- Electronic equipment and assemblies.
- Instrumentation and test equipment.
- Automation systems and OEM machinery.
