MERSEN FUSE NH 1 250A 400V GG NH1GG40V250

MERSEN FUSE NH 1 250A 400V GG NH1GG40V250

Mersen NH1GG40V250 DIN NH Size 1 gG fuse link rated at 250 A and 400 V AC with live gripping lugs and double indicator for industrial low voltage circuit protection.

SKU: NH1GG40V250Alt SKU: NH1GG40V250MPN: T223715
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Why Choose the Mersen NH1GG40V250 NH Fuse Link?

The Mersen NH1GG40V250 is a robust DIN NH gG fuse link designed to deliver dependable overload and short circuit protection in low voltage electrical distribution systems. Manufactured by Mersen, this NH Size 1 fuse link is engineered to protect cables, switchgear, motors, transformers and industrial electrical equipment in demanding commercial and industrial applications.

Featuring a 250 A current rating and a 400 V AC voltage rating, the NH1GG40V250 provides full-range gG protection in accordance with IEC 60269 standards. It incorporates live gripping lugs and a double indicator, allowing qualified professionals to safely handle the fuse and quickly identify when replacement is required.

Its high breaking capacity, durable construction and standard NH Size 1 dimensions make this fuse link ideal for installation in industrial switchboards, power distribution panels and electrical control systems where reliable circuit protection is essential.

Key Advantages

  • High-quality DIN NH gG fuse link for industrial circuit protection.
  • 250 A current rating for demanding low voltage installations.
  • 400 V AC rated voltage suitable for industrial power systems.
  • Full-range gG utilisation category protects against overloads and short circuits.
  • Double indicator enables rapid visual identification of fuse operation.
  • Live gripping lugs assist with safe installation and replacement.
  • Manufactured to recognised IEC and DIN NH standards.

Key Features

  • Mersen NH fuse-links gG 400 VAC series.
  • NH Size 1.
  • 250 A rated current.
  • 400 V AC rated voltage.
  • General-purpose gG operating class.
  • Double indicator.
  • Live gripping lugs.
  • 40 mm body width.
  • Blade contact construction.
  • RoHS compliant.

Reliable Protection for Industrial Power Distribution

The Mersen NH1GG40V250 is designed to disconnect excessive fault currents quickly, protecting electrical equipment against overload and short circuit damage. Its full-range gG characteristics make it suitable for protecting cables, switchgear and general electrical installations while helping reduce downtime and maintenance costs.

The standard NH Size 1 format ensures compatibility with suitable NH fuse bases and switch disconnectors commonly found in industrial and commercial low voltage distribution systems.

Typical Applications

  • Industrial switchboards.
  • Low voltage power distribution panels.
  • Cable protection.
  • Motor feeder circuits.
  • Transformer protection.
  • Commercial and industrial electrical installations.

Technical Specifications

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Fuse Indication Dual indicator
Current 250 A
Voltage 400 V
Device Type Fuse link
Fuse Type NH (DIN)
Fuse Size NH1
Fuse Class gG
Manufacturer Mersen
Series NH Fuse-links gG 400 VAC
Model NH1GG40V250
Item number T223715
Product type DIN NH fuse link
Fuse size NH1
Rated current 250 A
Rated voltage 400 V AC
Utilisation category gG
Frequency 50 / 60 Hz
Body width 40 mm
Indicator Double indicator
Gripping lugs Live gripping lugs
Contact type Blade contacts
Compliance IEC 60269, DIN NH, RoHS
HS Code 85361090
Country of Manufacture Hungary

Frequently Asked Questions

What is the Mersen NH1GG40V250 used for?

It protects low voltage electrical circuits, cables, motors and switchgear against overloads and short circuits.

What is the current rating of this fuse?

The NH1GG40V250 has a 250 A rated current.

What voltage is the fuse rated for?

This fuse is designed for operation on 400 V AC electrical systems.

What does the gG classification mean?

The gG utilisation category identifies a full-range general-purpose fuse suitable for protecting cables and electrical equipment against both overload and short circuit faults.

Where is the NH1GG40V250 commonly installed?

It is commonly installed in industrial switchboards, electrical distribution panels and commercial power distribution equipment.

Trusted for Industrial Circuit Protection

Mersen NH fuse links are trusted worldwide by electrical engineers, panel builders and maintenance professionals for dependable overcurrent protection and reliable performance in industrial low voltage electrical systems.