MERSEN FUSE NH 2 300A 690V GG NH2GG69V300

MERSEN FUSE NH 2 300A 690V GG NH2GG69V300

Mersen NH2GG69V300 NH2 size gG fuse link rated at 300 A and 690 V AC, designed for full-range overload and short-circuit protection of industrial cables and electrical equipment.

SKU: NH2GG69V300Alt SKU: NH2GG69V300MPN: W228501
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List Price £27.05 ex VAT
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Why Choose the Mersen NH2GG69V300 NH Fuse Link?

The Mersen NH2GG69V300 is a robust NH2 size gG fuse link designed to provide full-range protection for low-voltage electrical cables, equipment and industrial installations. With a rated current of 300 A and an AC voltage rating of 690 V, this high-rupturing-capacity fuse is suitable for demanding power distribution and machinery applications.

Its gG operating characteristic enables the fuse link to protect against both overload currents and high-level short circuits. The NH2GG69V300 can interrupt fault currents across its full operating range, allowing it to function as the primary protective device for compatible electrical circuits.

The fuse features a durable ceramic body, silver-plated copper blade contacts and live gripping tags for installation and removal using an appropriate NH fuse handle. A built-in double indicator provides a clear visual indication when the fuse has operated, helping maintenance personnel identify and replace a blown fuse efficiently.

Key Advantages

  • Full-range gG fuse protection for cables and electrical equipment.
  • 300 A rated current for high-power industrial circuits.
  • 690 V AC and 250 V DC ratings for versatile applications.
  • High 80 kA AC breaking capacity.
  • Double indication system supports rapid fault identification.
  • Durable ceramic construction for reliable industrial performance.

Key Features

  • Mersen NH low-voltage IEC fuse range.
  • NH2 standard fuse size.
  • 300 A rated current.
  • 690 V AC rated voltage.
  • 250 V DC rated voltage.
  • gG full-range operating characteristic.
  • Integrated double fuse indicator.
  • Live gripping tags for use with a compatible NH fuse handle.
  • Silver-plated copper plain-blade terminals.
  • RoHS-compliant industrial fuse construction.

Reliable Protection for Industrial Electrical Circuits

The Mersen NH2GG69V300 protects cables, electrical equipment and industrial installations from damaging overloads and short-circuit currents. During an electrical fault, the fuse element interrupts the circuit before excessive current can damage conductors, switchgear or connected machinery.

Its high breaking capacity also helps limit the electrodynamic and thermal effects produced by severe short circuits. The fuse must be installed in a compatible NH2 fuse base and should only be handled or replaced by qualified electrical personnel using suitable protective equipment and an approved NH fuse puller.

Typical Applications

  • Industrial low-voltage distribution boards.
  • Electrical control panels and switchgear.
  • Cable and feeder circuit protection.
  • Manufacturing and processing machinery.
  • Commercial and industrial power installations.
  • Motor distribution and equipment circuits.

Technical Specifications

Current 300 A
Voltage 690 V
Manufacturer Mersen
Catalogue number NH2GG69V300
Item number W228501
Product type NH high-rupturing-capacity fuse link
Fuse size NH2
Operating class gG
Rated current 300 A
Rated AC voltage 690 V AC
Rated DC voltage 250 V DC
AC breaking capacity 80 kA
Indication system Double indicator
Gripping-tag design Live tags
Terminal type Plain blades
Terminal material Silver-plated copper
Body material Ceramic
Power dissipation at rated current 21 W
Dimensions (L × W × H) 150 × 52 × 74 mm
Weight approximately 0.64 kg
EAN 8430399026411
Compliance RoHS compliant
HS Code 85361090
Country of Manufacture Hungary
Device Type Accessory
Fuse Type NH (DIN)
Fuse Size NH2
Fuse Class gG

Frequently Asked Questions

What is the Mersen NH2GG69V300 used for?

This fuse link protects low-voltage cables, electrical equipment and industrial circuits against overloads and short circuits.

What is the current rating of the NH2GG69V300?

The Mersen NH2GG69V300 has a rated current of 300 A.

What voltage can this fuse link support?

The fuse is rated for operation at up to 690 V AC and 250 V DC.

What does the gG fuse classification mean?

The gG classification identifies a full-range fuse that provides protection against both overload currents and short-circuit faults in general-purpose cable and equipment circuits.

Does this fuse include a blown-fuse indicator?

Yes. The NH2GG69V300 incorporates a double indicator to help maintenance personnel identify when the fuse has operated.

Trusted Industrial Circuit Protection

Mersen NH fuse links are widely used in industrial power distribution systems to provide dependable full-range protection for cables, electrical equipment and critical installations.

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