MERSEN FUSE 250V SA 2,5 A 5.20 MI5SA25V2,5

MERSEN FUSE 250V SA 2,5 A 5.20 MI5SA25V2,5

Mersen N087021 MI5SA25V2.5 5 x 20 mm ceramic miniature cartridge fuse rated at 2.5 A and 250 V AC with medium time-lag SA characteristic for industrial and electronic circuit protection.

SKU: N087021Alt SKU: MI5SA25V2,5MPN: N087021
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Why Choose the Mersen N087021 Medium Time-Lag Fuse?

The Mersen N087021, catalogue number MI5SA25V2.5, is a 5 × 20 mm ceramic miniature cartridge fuse designed to provide dependable overcurrent protection for sensitive electronic equipment, control circuits and industrial automation systems. Featuring Mersen's SA medium time-lag characteristic, it tolerates temporary inrush currents while providing reliable protection against sustained overloads and short circuits.

Rated at 2.5 A with a 250 V AC voltage rating, the N087021 is ideal for protecting power supplies, measuring equipment, industrial control panels and OEM electronic assemblies. Its ceramic construction provides excellent mechanical strength and dependable fault interruption in demanding applications.

Manufactured by Mersen, a global leader in electrical protection technology, the N087021 offers consistent performance, high interrupting capability and compliance with recognised international standards, making it an excellent choice for professional electrical installations.

Key Advantages

  • Medium time-lag SA operating characteristic allows temporary inrush currents.
  • 2.5 A current rating for electronic and industrial circuits.
  • 250 V AC voltage rating.
  • Compact 5 × 20 mm ceramic cartridge design.
  • 10 kA breaking capacity for dependable fault protection.
  • Suitable for industrial automation, instrumentation and OEM equipment.

Key Features

  • Mersen Semiconductor Miniature Fuse Series.
  • Catalogue number: MI5SA25V2.5.
  • Rated current: 2.5 A.
  • Rated voltage: 250 V AC.
  • Medium time-lag SA characteristic.
  • 5 × 20 mm ceramic cartridge construction.
  • 10 kA breaking capacity.
  • Designed for clip-mounted fuse holders.

Reliable Protection for Industrial Electronics

Medium time-lag miniature fuses are designed to withstand short-duration current surges that commonly occur during equipment start-up while still providing dependable protection against prolonged overloads and fault currents. This helps prevent nuisance fuse operation without compromising circuit safety.

The Mersen N087021 is widely used in industrial control systems, instrumentation, automation equipment and power supplies where dependable circuit protection and long service life are essential.

Typical Applications

  • Industrial control panels.
  • Electronic power supplies.
  • Automation equipment.
  • Instrumentation and measuring devices.
  • OEM machinery.
  • Electronic circuit protection.

Technical Specifications

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Current 2.5 A
Voltage 250 V
Device Type Fuse link
Fuse Type Miniature
Fuse Size 5x20 mm
Fuse Class Time delay
Manufacturer Mersen
Series Semiconductor Miniature Fuses Size 5 × 20 SA
Model N087021
Catalogue number MI5SA25V2.5
Product type Ceramic miniature cartridge fuse
Rated current 2.5 A
Rated voltage 250 V AC
Operating characteristic Medium time-lag (SA)
Fuse size 5 × 20 mm
Breaking capacity 10 kA
Mounting type Clip mounting
Frequency 50 / 60 Hz
Construction Ceramic body
EAN 3605340077247

Frequently Asked Questions

What is the Mersen N087021 used for?

The Mersen N087021 protects electronic and industrial circuits against overloads and short circuits while allowing temporary inrush currents during equipment start-up.

What is the current rating of the N087021?

The fuse has a rated current of 2.5 A.

What voltage is this fuse rated for?

The Mersen N087021 is rated for operation up to 250 V AC.

What size is the Mersen N087021?

It is a standard 5 × 20 mm ceramic miniature cartridge fuse.

What does the SA characteristic mean?

The SA designation indicates a medium time-lag operating characteristic that tolerates temporary inrush currents while providing dependable overload and short-circuit protection.

Trusted for Reliable Circuit Protection

Mersen miniature fuses are trusted worldwide by OEM manufacturers, automation engineers and maintenance professionals for dependable protection of industrial and electronic equipment.