Why Choose the Mersen W233446 5SF Fast-Acting Miniature Fuse?
The Mersen W233446, catalogue reference MI5SF25V12,5, is a compact 5 × 20 mm fast-acting glass cartridge fuse designed to protect electrical equipment and industrial circuits against excessive current. Its quick-response operating characteristic allows it to interrupt abnormal current rapidly, helping reduce the risk of damage to wiring and connected components.
As part of the Mersen 5SF IEC miniature fuse series, the W233446 is intended for electrical distribution circuits and general industrial equipment. Its standard cylindrical dimensions make it compatible with suitable 5 × 20 mm fuse holders, allowing straightforward installation and replacement during maintenance.
The fuse has a rated current of 12.5 A and a rated voltage of 250 V AC. Its transparent glass body supports visual inspection of the fuse element, while nickel-plated brass contact caps provide reliable electrical contact within an appropriately rated fuse holder.
Key Advantages
- Compact 5 × 20 mm miniature cartridge fuse.
- Fast-acting characteristic provides rapid overcurrent protection.
- 12.5 A rated current for electrical and industrial circuits.
- 250 V AC rated voltage for low-voltage equipment.
- Glass body allows convenient visual inspection of the fuse element.
- Standard cylindrical format simplifies installation and replacement.
- Suitable for electrical distribution and general equipment protection.
Key Features
- Mersen 5SF IEC miniature fuse series.
- MI5SF25V12,5 catalogue reference.
- 5 × 20 mm cylindrical fuse dimensions.
- 12.5 A nominal current rating.
- 250 V AC rated voltage.
- Fast-acting fuse characteristic.
- Low-breaking-capacity miniature fuse construction.
- Glass body without extinguishing agent.
- Nickel-plated brass contact caps.
- Manufactured in accordance with IEC 60127-2 Sheet 2.
Rapid Protection for Electrical Equipment
Fast-acting fuses are designed to disconnect a circuit quickly when the current rises beyond an acceptable level. They are commonly used in applications that do not experience prolonged start-up currents and where rapid isolation is required to protect wiring, control components and electrical equipment.
The Mersen W233446 provides replaceable overcurrent protection in a compact glass cartridge format. When correctly selected and installed in a suitably rated fuse holder, it helps protect electrical circuits against sustained overloads and fault currents.
Typical Applications
- Electrical distribution circuits.
- Industrial control panels and machinery.
- Power supplies and electrical equipment.
- Heating and ventilation controls.
- Lighting and auxiliary circuits.
- Test and measurement equipment.
- OEM electrical assemblies.
- General low-voltage circuit protection.
