MERSEN FUSE 250V 5SF 3,15A 5.20 MI5SF25V3,15

MERSEN FUSE 250V 5SF 3,15A 5.20 MI5SF25V3,15

Mersen R090520 quick-acting 5 x 20 mm IEC miniature fuse rated at 3.15 A and 250 V AC for industrial and electronic circuit protection.

SKU: R090520Alt SKU: MI5SF25V3,15MPN: R090520
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Why Choose the Mersen R090520 5 x 20 mm Miniature Fuse?

The Mersen R090520 is a high-quality 5 x 20 mm quick-acting miniature fuse designed to provide fast and reliable overcurrent protection for industrial electrical equipment and electronic circuits. Manufactured by Mersen, this fuse forms part of the proven 5SF IEC miniature fuse series, offering dependable protection for OEM equipment, control panels and electrical distribution applications.

Engineered to interrupt fault currents rapidly, the R090520 helps minimise damage to sensitive electrical components while improving equipment reliability and reducing downtime. Its compact 5 x 20 mm format makes it suitable for a wide variety of industrial and commercial applications requiring fast-acting circuit protection.

With a 3.15 A current rating and 250 V AC operating voltage, the Mersen R090520 delivers consistent performance while complying with IEC miniature fuse requirements. It is ideal for protecting control circuits, instrumentation, industrial machinery and electronic equipment.

Key Advantages

  • Fast-acting protection for sensitive electrical equipment.
  • 3.15 A current rating for industrial and electronic circuits.
  • 250 V AC voltage rating suitable for IEC applications.
  • Compact 5 x 20 mm miniature fuse design.
  • Helps minimise damage caused by fault currents.
  • Manufactured to Mersen's recognised quality standards.

Key Features

  • Mersen 5SF miniature fuse series.
  • Model: R090520.
  • 3.15 A rated current.
  • 250 V AC rated voltage.
  • Quick-acting (fast blow) operating characteristic.
  • 5 x 20 mm IEC miniature fuse format.
  • Designed for industrial and electronic circuit protection.
  • RoHS compliant construction.

Reliable Protection for Electrical Equipment

Quick-acting miniature fuses rapidly disconnect electrical circuits when abnormal current levels occur, helping prevent damage to electronic components, wiring and industrial equipment. Their fast response makes them particularly suitable for protecting sensitive devices where rapid fault clearance is essential.

The Mersen R090520 is widely used by machine builders, panel manufacturers and maintenance engineers requiring dependable overcurrent protection in compact electrical assemblies and industrial control equipment.

Typical Applications

  • Industrial control panels.
  • Automation equipment.
  • Electronic power supplies.
  • Instrumentation and measurement equipment.
  • OEM machinery.
  • Control circuits.
  • Electrical distribution equipment.
  • Industrial electrical maintenance.

Technical Specifications

Current 15 A
Voltage 250 V
Manufacturer Mersen
Series 5SF IEC Miniature Fuses
Model R090520
Catalogue number MI5SF25V3.15
Product type Quick-acting miniature fuse
Fuse size 5 x 20 mm
Rated current 3.15 A
Rated voltage 250 V AC
Operating characteristic Fast acting
Application Overcurrent protection
Standards IEC miniature fuse
RoHS compliant Yes
Device Type Fuse link
Fuse Type Miniature
Fuse Size 5x20 mm
Fuse Class Fast acting

Frequently Asked Questions

What is the Mersen R090520 used for?

The Mersen R090520 provides fast-acting overcurrent protection for industrial electrical equipment, electronic circuits and control systems.

What is the current rating of this fuse?

The fuse has a rated current of 3.15 A.

What voltage is the fuse designed for?

The R090520 is designed for use on circuits up to 250 V AC.

Is this a fast-acting fuse?

Yes. It belongs to Mersen's 5SF series of quick-acting IEC miniature fuses for rapid fault interruption.

Where is this fuse commonly installed?

It is commonly installed in industrial control panels, automation equipment, instrumentation, power supplies and OEM machinery requiring compact circuit protection.

Trusted by Electrical Professionals Worldwide

Mersen miniature fuses are trusted by panel builders, maintenance engineers and OEM manufacturers for delivering reliable, standards-compliant circuit protection across industrial and commercial applications.

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