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MERSEN FUSE 250V 5ST 3,15A 5.20 MI5ST25V3,15
Mersen X090548 MI5ST25V3.15/100 time-delay 5 x 20 mm glass miniature fuse rated at 3.15 A and 250 V AC with a 35 A breaking capacity.
Why Choose the Mersen X090548 5ST Time-Delay Miniature Fuse?
The Mersen X090548, catalogue reference MI5ST25V3.15/100, is a reliable 5 × 20 mm time-delay miniature glass fuse designed to protect industrial equipment, electronic devices and electrical control circuits from overloads and short-circuit faults. Its time-delay operating characteristic allows it to withstand temporary inrush currents without nuisance operation while maintaining dependable protection against sustained overcurrent conditions.
As part of the Mersen 5ST IEC Miniature Fuse series, the X090548 is ideally suited to applications incorporating motors, transformers, switched-mode power supplies and other inductive loads where temporary start-up currents are expected. The transparent glass body allows rapid visual inspection of the fuse element during servicing.
With a rated current of 3.15 A, a rated voltage of 250 V AC and a breaking capacity of 35 A, this fuse provides dependable low-voltage circuit protection in a standard format compatible with suitable 5 × 20 mm fuse holders.
Key Advantages
- Compact 5 × 20 mm miniature glass cartridge fuse.
- Time-delay (anti-surge) characteristic withstands temporary inrush currents.
- 3.15 A rated current for industrial and electronic applications.
- 250 V AC rated voltage.
- 35 A breaking capacity for dependable fault protection.
- Transparent glass body enables quick visual inspection.
- Industry-standard dimensions simplify replacement and maintenance.
Key Features
- Mersen 5ST IEC Miniature Fuse series.
- MI5ST25V3.15/100 catalogue reference.
- 5 × 20 mm cylindrical glass fuse.
- 3.15 A nominal current rating.
- 250 V AC rated voltage.
- Time-delay operating characteristic.
- 35 A breaking capacity.
- 91.5 A²s pre-arcing I²t.
- Glass body with nickel-plated brass contact caps.
- Manufactured in accordance with IEC 60127-2.
Reliable Protection for Equipment with Inrush Currents
Time-delay miniature fuses are designed to tolerate the short-duration current surges produced during the start-up of motors, transformers and switched-mode power supplies. This reduces unnecessary fuse operation while continuing to protect equipment from prolonged overloads and fault currents.
The Mersen X090548 provides dependable circuit protection in a compact industry-standard format suitable for OEM equipment, industrial automation systems, instrumentation and electrical control panels.
Typical Applications
- Industrial control panels.
- Motor control circuits.
- Transformer protection.
- Power supplies.
- Electronic equipment.
- Instrumentation and measurement systems.
- OEM machinery.
- General industrial electrical installations.
Technical Specifications
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| Current | 3.15 A | |
|---|---|---|
| Voltage | 250 V | |
| Device Type | Fuse link | |
| Fuse Type | Miniature | |
| Fuse Size | 5x20 mm | |
| Fuse Class | Time delay | |
| Manufacturer | Mersen | |
| Series | 5ST IEC Miniature Fuses | |
| Item number | X090548 | |
| Catalogue number | MI5ST25V3.15/100 | |
| Product type | Time-delay miniature glass fuse | |
| Fuse size | 5 × 20 mm | |
| Rated current | 3.15 A | |
| Rated voltage | 250 V AC | |
| Operating characteristic | Time-delay (anti-surge) | |
| Breaking capacity | 35 A | |
| Pre-arcing I²t | 91.5 A²s | |
| Power loss at rated current | 0.58 W | |
| Maximum voltage drop | 0.08 V | |
| Body material | Glass | |
| Contact cap material | Nickel-plated brass | |
| Applicable standard | IEC 60127-2 | |
| EAN | 3605340091946 | |
| RoHS compliant | Yes |
Frequently Asked Questions
What is the Mersen X090548 used for?
The Mersen X090548 protects industrial and electronic equipment against overloads and short circuits while allowing temporary start-up current surges.
What is the current rating of the X090548?
The fuse has a nominal current rating of 3.15 A.
Is the X090548 fast-acting or time-delay?
The X090548 is a time-delay (anti-surge) fuse designed for circuits with temporary inrush currents.
What fuse holder is compatible?
The fuse should be installed in a compatible 5 × 20 mm miniature fuse holder with suitable electrical ratings.
Can the fuse element be visually inspected?
Yes. The transparent glass body allows the fuse element to be visually inspected during maintenance.
Trusted Circuit Protection from Mersen
Mersen miniature fuses are trusted by electrical engineers, machine builders and equipment manufacturers worldwide to deliver reliable overcurrent protection for industrial, commercial and electronic applications.
