Why Choose the Mersen Z090550 MI5ST25V5 Miniature Fuse?
The Mersen Z090550 MI5ST25V5 is a dependable time-delay miniature cartridge fuse designed to protect electrical distribution circuits, industrial controls and electronic equipment against sustained overloads and short circuits. As part of the Mersen 5ST IEC miniature fuse series, it can tolerate brief current surges while maintaining reliable overcurrent protection.
The fuse uses a standard 5 × 20 mm glass cartridge format, allowing installation in compatible fuse holders and fuse clips. Its transparent body also enables maintenance engineers to inspect the fuse element visually when diagnosing electrical faults or carrying out routine servicing.
With a rated current of 5 A and a rated voltage of 250 V AC, the Z090550 is suitable for circuits with temporary start-up currents, including power supplies, transformers, motors and industrial control equipment. Its time-delay characteristic helps prevent unnecessary fuse operation during normal inrush conditions.
Key Advantages
- Time-delay operation withstands temporary start-up and inrush currents.
- 5 A current rating for industrial and electronic circuits.
- 250 V AC voltage rating for low-voltage equipment protection.
- Standard 5 × 20 mm miniature cartridge format.
- Transparent glass body supports convenient visual inspection.
- Reliable Mersen construction for industrial and OEM applications.
Key Features
- Mersen MI5ST25V5 miniature cartridge fuse.
- 5 A rated current.
- 250 V AC rated voltage.
- Time-delay fuse characteristic.
- Standard 5 × 20 mm dimensions.
- Glass cartridge body with metal end caps.
- Suitable for circuits with temporary current surges.
- Designed for electrical distribution and industrial equipment protection.
Time-Delay Protection for Electrical Equipment
Time-delay fuses are designed to tolerate short-duration current surges that occur when equipment such as motors, transformers and power supplies is energised. This helps avoid nuisance fuse operation while maintaining protection against prolonged overloads and short circuits.
The Mersen Z090550 combines a time-delay operating characteristic with standard miniature dimensions, making it suitable for replacement and original-equipment applications. The fuse rating, voltage and operating characteristic should always be checked against the equipment manufacturer's specification before installation.
Typical Applications
- Industrial control panels.
- Power supplies and power conversion equipment.
- Transformers and inductive loads.
- Motor control and automation circuits.
- Instrumentation and monitoring equipment.
- OEM electrical and electronic assemblies.
