MERSEN FUSE 250V HA 37 F 12,5 A 250VHA37F12.5A

MERSEN FUSE 250V HA 37 F 12,5 A 250VHA37F12.5A

Mersen N079040 MI6HA37F25V12.5 fast-acting semiconductor miniature fuse rated at 12.5 A and 250 V AC for protecting sensitive electronic and industrial control circuits.

SKU: N079040Alt SKU: 250VHA37F12.5AMPN: N079040
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List Price £13.04 ex VAT
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Why Choose the Mersen N079040 Miniature Fuse?

The Mersen N079040, catalogue reference MI6HA37F25V12.5, is a high-performance fast-acting semiconductor miniature fuse designed to protect sensitive electronic components, semiconductor devices and industrial control circuits against damaging overcurrent and short-circuit faults. It belongs to Mersen's trusted HA 37 6.3 × 32 mm miniature fuse series.

Featuring a fast (F) operating characteristic, this fuse responds rapidly to fault currents, helping minimise damage to valuable electronic equipment while improving overall system reliability. Its compact ceramic construction provides excellent fault-clearing capability and is designed for installation in standard fuse clips and holders.

With a rated current of 12.5 A and a rated voltage of 250 V AC, the Mersen N079040 is suitable for industrial automation equipment, electronic instrumentation, power supplies and semiconductor protection applications where rapid fault interruption is essential.

Key Advantages

  • Compact 6.3 × 32 mm semiconductor miniature fuse.
  • 12.5 A current rating for electronic and industrial control circuits.
  • 250 V AC voltage rating.
  • Fast (F) operating characteristic for rapid fault interruption.
  • High breaking capacity helps protect valuable semiconductor devices.
  • Suitable for installation in standard fuse clips and holders.

Key Features

  • Mersen HA 37 semiconductor miniature fuse series.
  • Manufacturer item number: N079040.
  • Catalogue reference: MI6HA37F25V12.5.
  • Rated current: 12.5 A.
  • Rated voltage: 250 V AC.
  • Operating characteristic: Fast (F).
  • Breaking capacity: 10 kA.
  • Fuse dimensions: 6.3 × 32 mm.
  • Clip mounting for straightforward installation.
  • RoHS compliant.

Reliable Protection for Sensitive Electronic Equipment

Fast-acting semiconductor fuses are designed to disconnect fault currents almost instantly, helping prevent excessive thermal and electrical stress from damaging semiconductor devices and other sensitive electronic components.

The HA 37 miniature fuse range combines compact dimensions with dependable fault-clearing performance, making it suitable for OEM machinery, industrial automation systems, electronic equipment and power conversion applications requiring reliable overcurrent protection.

Typical Applications

  • Semiconductor protection.
  • Industrial automation systems.
  • Electronic control panels.
  • Power supplies and converters.
  • Instrumentation and monitoring equipment.
  • OEM machinery and electronic assemblies.

Technical Specifications

Current 5 A
Voltage 250 V
Manufacturer Mersen
Series HA 37 Semiconductor Miniature Fuses
Model N079040
Catalogue reference MI6HA37F25V12.5
Product type Semiconductor miniature fuse
Rated current 12.5 A
Rated voltage 250 V AC
Current type AC
Operating characteristic Fast (F)
Breaking capacity 10 kA
Fuse dimensions 6.3 × 32 mm
Mounting type Clip mounting
EAN 3605340033717
Compliance RoHS
Device Type Fuse link
Fuse Type Miniature, Semiconductor

Frequently Asked Questions

What is the Mersen N079040 used for?

The Mersen N079040 protects semiconductor devices, electronic equipment and industrial control circuits from damaging overcurrent and short-circuit faults.

What is the rated current of this fuse?

The Mersen N079040 has a rated current of 12.5 A.

What voltage is the fuse designed for?

This fuse is rated for operation on circuits up to 250 V AC.

What does the fast (F) characteristic mean?

A fast-acting fuse interrupts fault currents rapidly, helping protect sensitive electronic and semiconductor components from damage.

What size is the Mersen N079040?

The fuse has a standard 6.3 × 32 mm cylindrical format and is designed for use with compatible fuse clips and holders.

Trusted by Electrical and Automation Professionals

Mersen semiconductor miniature fuses are trusted by panel builders, OEM manufacturers and maintenance engineers worldwide for dependable protection of industrial electronics and sensitive electrical equipment.

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