Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
MERSEN FUSE 250V 5ST 0,63A 5.20 MI5ST25V0,63
Mersen P090541 MI5ST25V0,63 time-delay 5 x 20 mm miniature glass cartridge fuse rated at 630 mA and 250 V AC for industrial equipment, motors and electrical circuit protection.
Why Choose the Mersen P090541 5ST Miniature Fuse?
The Mersen P090541, also identified by the catalogue reference MI5ST25V0,63, is a compact 5 x 20 mm time-delay cartridge fuse designed to provide dependable overcurrent protection for electrical equipment, industrial controls and motor-related circuits. As part of the established Mersen 5ST IEC miniature fuse series, it withstands brief start-up currents while protecting connected equipment against sustained overloads and short circuits.
The P090541 features a transparent glass body that allows straightforward visual inspection of the internal fuse element. Its brass, nickel-plated contact caps provide reliable electrical connection, while its standard cylindrical format enables installation in compatible fuse holders, clips and equipment-mounted fuse bases.
With a rated current of 630 mA and a rated voltage of 250 V AC, this fuse is suitable for protecting control circuits, small motors, transformers, power supplies and industrial equipment where temporary current surges are expected during normal operation.
Key Advantages
- Reliable time-delay fuse for industrial circuit protection.
- 630 mA current rating for accurately matched equipment protection.
- 250 V AC voltage rating suitable for numerous electrical applications.
- Withstands brief motor-starting and equipment inrush currents.
- Compact 5 x 20 mm cartridge format for space-efficient installation.
- Glass body allows convenient visual inspection of the fuse element.
Key Features
- Mersen 5ST IEC miniature fuse series.
- Catalogue reference: MI5ST25V0,63.
- 630 mA rated current.
- 250 V AC rated voltage.
- Time-delay operating characteristic.
- Standard 5 x 20 mm cylindrical fuse size.
- Glass body without an extinguishing agent.
- Brass, nickel-plated contact caps.
Dependable Protection Against Overloads and Inrush Currents
Time-delay fuses such as the Mersen P090541 are designed to tolerate the brief, elevated currents that occur when motors, transformers and power supplies are switched on. This helps prevent unnecessary fuse operation during normal equipment start-up while maintaining protection against sustained overcurrent conditions.
The standard 5 x 20 mm construction allows the P090541 to be installed easily within industrial machinery, control panels and electronic equipment. Its established Mersen design delivers consistent performance for original equipment production, routine servicing and replacement applications.
Typical Applications
- Small motors and motor control circuits.
- Industrial electrical equipment.
- Automation and control panels.
- Transformers and power supplies.
- Electronic control systems.
- OEM machinery and equipment assemblies.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 0.63 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 | |
| Model | P090541 | |
| Catalogue reference | MI5ST25V0,63 | |
| Product type | Miniature cartridge fuse | |
| Rated current | 630 mA | |
| Rated voltage | 250 V AC | |
| Operating characteristic | Time delay | |
| Fuse speed designation | T | |
| Breaking capacity | 35 A | |
| Fuse size | 5 x 20 mm | |
| Overall length | 20 mm | |
| Diameter | 5 mm | |
| Body material | Glass | |
| Construction | Without extinguishing agent | |
| Contact caps | Brass, nickel plated | |
| Mounting type | Fuse holder or clip mounting | |
| Applicable standard | IEC 60127-2 Sheet 3 | |
| RoHS compliant | Yes | |
| GTIN / EAN | 3605340091731 | |
| Typical weight | Approx. 1 g |
Frequently Asked Questions
What is the Mersen P090541 used for?
The Mersen P090541 provides overcurrent and short-circuit protection for industrial equipment, control circuits, small motors, transformers and power supplies.
What is the current rating of the P090541?
The fuse has a rated current of 630 mA, which is equivalent to 0.63 A.
What voltage is this fuse rated for?
The Mersen P090541 is rated for operation at up to 250 V AC.
Is the P090541 a fast-acting fuse?
No. It is a time-delay fuse designed to tolerate brief inrush currents before operating under a sustained overload or fault condition.
What size is the Mersen P090541?
The fuse has a standard cylindrical size of 5 x 20 mm and is designed for use with a compatible fuse holder or mounting clip.
Trusted by Electrical Professionals Worldwide
Mersen miniature fuses are trusted by electrical engineers, panel builders and equipment manufacturers for reliable circuit protection, consistent operation and compliance with recognised international standards.
