Why Choose the Mersen L214071 5 x 20 mm Medium Time-Lag Fuse?
The Mersen L214071, catalogue reference MI5SM25V1, is a compact 5 x 20 mm medium time-lag miniature fuse designed to protect electrical distribution circuits, control equipment and industrial electrical systems against damaging overcurrents. Rated at 1 A and 250 V AC, it combines dependable circuit protection with the ability to tolerate brief current surges.
As part of the established Mersen 5SM IEC miniature fuse series, the L214071 is particularly suitable for equipment where normal start-up or switching conditions may produce temporary inrush currents. Its medium time-lag characteristic helps reduce unnecessary fuse operation while still disconnecting the circuit when a sustained overload or short circuit occurs.
The fuse features a transparent glass body, nickel-plated brass contact caps and a standard 5 x 20 mm format for use with compatible clips, fuse bases and enclosed fuse holders. It complies with IEC 60127-2 Sheet 2 and offers an AC breaking capacity of 80 A.
Key Advantages
- Compact 5 x 20 mm IEC miniature fuse for electrical equipment protection.
- 1 A current rating for low-current control and distribution circuits.
- 250 V AC voltage rating for industrial and commercial applications.
- Medium time-lag characteristic tolerates brief start-up and switching currents.
- Transparent glass body supports visual inspection of the fuse element.
- Standard dimensions allow straightforward installation and replacement.
Key Features
- Mersen 5SM miniature fuse series.
- Catalogue number: MI5SM25V1.
- Rated current: 1 A.
- Rated voltage: 250 V AC.
- Speed characteristic: Medium time-lag.
- Rated breaking capacity: 80 A AC.
- Pre-arcing I²t: 6.45 A²s.
- Power dissipation: 0.12 W at rated current.
- Glass body with nickel-plated brass contact caps.
- RoHS compliant construction.
Reliable Protection for Electrical Equipment
Medium time-lag fuses provide a controlled response to overcurrent conditions. They allow brief, non-damaging current peaks associated with energising transformers, power supplies and other inductive or capacitive equipment, while responding to sustained overloads that could damage wiring or components.
The Mersen L214071 is suitable for use in compatible fuse clips, bases and holders within electrical equipment. Its standardised dimensions, IEC compliance and clearly defined electrical characteristics make it a dependable choice for OEM assembly, panel building and maintenance applications.
Typical Applications
- Electrical distribution circuits.
- Industrial control panels.
- Power supplies and control transformers.
- Automation and instrumentation equipment.
- Electronic control systems.
- Machinery and production equipment.
- OEM electrical assemblies.
- Repair and maintenance applications.
