MERSEN FUSE NH 1C 20A 500V GG SGL NH1GG50V20-1

MERSEN FUSE NH 1C 20A 500V GG SGL NH1GG50V20-1

Mersen NH1GG50V20-1 NH Size 1 gG fuse link rated at 20 A, 500 V AC and 250 V DC featuring isolated gripping lugs and a double operating indicator.

SKU: NH1GG50V20-1Alt SKU: NH1GG50V20-1MPN: T222496
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List Price £18.04 ex VAT
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Why Choose the Mersen NH1GG50V20-1 NH Fuse Link?

The Mersen NH1GG50V20-1 is a premium NH Size 1 gG low voltage fuse link engineered to provide dependable full-range protection for industrial electrical distribution systems, switchgear and power circuits. Manufactured to DIN NH and IEC standards, this fuse link protects cables, conductors and electrical equipment against overloads and short-circuit currents, ensuring reliable operation in demanding industrial environments.

Designed with isolated gripping lugs and a double operating indicator, the NH1GG50V20-1 enables safer installation and replacement while allowing maintenance personnel to identify an operated fuse quickly. Its robust ceramic body and silver-plated blade contacts provide excellent thermal performance and a long operational life.

With a 20 A rated current, 500 V AC operating voltage, 250 V DC rating and NH Size 1 construction, this fuse link is ideally suited for protecting industrial distribution boards, switchgear, motor control centres, machinery and OEM electrical equipment.

Key Advantages

  • Full-range gG fuse link providing overload and short-circuit protection.
  • 20 A rated current for industrial electrical applications.
  • 500 V AC / 250 V DC operating ratings.
  • Double operating indicator enables rapid fuse status identification.
  • Isolated gripping lugs improve installation and maintenance safety.
  • Current-limiting design helps minimise damage during electrical fault conditions.

Key Features

  • Mersen NH gG Fuse Link Series.
  • 20 A rated current.
  • 500 V AC / 250 V DC rated voltage.
  • NH Size 1.
  • gG utilisation category.
  • Double operating indicator.
  • Isolated gripping lugs.
  • Ceramic body with silver-plated blade contacts.

Reliable Protection for Industrial Electrical Systems

The Mersen NH1GG50V20-1 is designed to provide complete protection against overloads and short-circuit faults in industrial low voltage systems. Its gG operating characteristic makes it suitable for protecting cables, conductors, switchgear and electrical equipment while reducing thermal and mechanical stress caused by fault currents.

Designed for installation in compatible NH fuse bases, this fuse link should be installed and replaced by qualified electrical personnel using an approved NH fuse puller. The isolated gripping lugs and double operating indicator improve maintenance safety and minimise system downtime.

Typical Applications

  • Industrial electrical distribution systems.
  • Main and sub-distribution switchboards.
  • Motor control centres (MCCs).
  • Cable and feeder circuit protection.
  • Industrial machinery and automation systems.
  • OEM electrical control panels.
  • Commercial and manufacturing facilities.

Technical Specifications

Current 20 A
Voltage 500 V
Manufacturer Mersen
Series NH gG Fuse Links
Model NH1GG50V20-1
Item Number T222496
EAN 8430399001838
Product Type NH gG Low Voltage Fuse Link
Fuse Size NH1
Rated Current 20 A
Rated Voltage (AC) 500 V
Rated Voltage (DC) 250 V
Utilisation Category gG
Body Width 29.5 mm
Power Dissipation 2.3 W
Indicator Double operating indicator
Gripping Lugs Isolated
Mounting NH fuse base / blade contact
Weight Approx. 0.28 kg
RoHS Compliant Yes
Standards IEC 60269, DIN NH
HS Code 85361050
Country of Manufacture Hungary
Device Type Fuse link
Fuse Type NH (DIN)
Fuse Size NH1
Fuse Class gG

Frequently Asked Questions

What is the Mersen NH1GG50V20-1 used for?

It provides full-range protection against overloads and short-circuit faults in industrial electrical distribution systems, protecting cables, switchgear and connected equipment.

What is the rated current of this fuse?

The NH1GG50V20-1 has a rated current of 20 A.

What voltage ratings does this fuse support?

This fuse is rated for operation at 500 V AC and 250 V DC.

What does the gG utilisation category mean?

The gG operating category provides full-range protection against both overload and short-circuit faults for general-purpose electrical circuits.

Why does this fuse include isolated gripping lugs?

Isolated gripping lugs improve operator safety during installation and replacement while allowing secure handling using an approved NH fuse puller.

Trusted by Electrical Professionals Worldwide

Mersen NH gG fuse links are trusted by electrical engineers, switchgear manufacturers, OEMs and maintenance professionals for delivering reliable, standards-compliant protection in industrial power distribution systems.

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