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MERSEN FUSE NH2C 125KVA 400V GTR TI NH2GTR125KVA-8

MERSEN FUSE NH2C 125KVA 400V GTR TI NH2GTR125KVA-8

Mersen NH2GTR125KVA-8 DIN NH size 2 gTr transformer fuse-link rated for 125 kVA transformers, 180 A and 400 V AC with top indicator and live gripping lugs.

SKU: NH2GTR125KVA-8Alt SKU: NH2GTR125KVA-8MPN: D1028701
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Why Choose the Mersen NH2GTR125KVA-8 Transformer Protection Fuse?

The Mersen NH2GTR125KVA-8 is a DIN NH size 2 gTr fuse-link specifically engineered for protecting low-voltage distribution transformers. Designed for use on 400 V AC systems, this transformer protection fuse is optimised for transformers with a nominal capacity of 125 kVA, delivering excellent discrimination while withstanding normal transformer energisation currents.

Unlike general-purpose gG fuse-links, the gTr characteristic is tailored to the time/current characteristics of distribution transformers. This enables reliable protection against short circuits while avoiding nuisance operation during transformer magnetising inrush, helping maximise system availability and equipment life.

The NH2GTR125KVA-8 features a robust ceramic body, silver-plated blade contacts, live gripping lugs and a top-mounted blown fuse indicator. Manufactured to the DIN NH standard, it is intended for installation in compatible NH fuse bases and transformer switch-fuse units by qualified electrical professionals.

Key Advantages

  • Designed specifically for 125 kVA transformer protection.
  • Optimised gTr time/current characteristic.
  • 400 V AC low-voltage transformer applications.
  • Withstands transformer energisation inrush currents.
  • Top-mounted fuse-operation indicator for easy inspection.
  • Compatible with standard DIN NH size 2 fuse systems.

Key Features

  • Mersen NH gTr transformer protection fuse-link.
  • DIN NH size 2.
  • 125 kVA transformer protection rating.
  • 180 A rated current.
  • 400 V AC rated voltage.
  • gTr transformer protection characteristic.
  • Top-mounted blown fuse indicator.
  • Live gripping lugs.
  • Ceramic fuse body.
  • RoHS compliant.

Reliable Protection for Distribution Transformers

Transformer protection requires a fuse capable of tolerating high magnetising inrush currents while still providing rapid interruption of short-circuit faults. The Mersen gTr characteristic is specifically developed to match transformer operating behaviour, delivering excellent selectivity and dependable equipment protection.

The NH2GTR125KVA-8 should be installed in compatible NH switch-fuse assemblies or fuse bases as part of a correctly engineered transformer protection system. Installation and replacement should only be carried out by suitably qualified electrical professionals.

Typical Applications

  • Low-voltage distribution transformers.
  • Transformer switch-fuse units.
  • Industrial substations.
  • Commercial electrical distribution.
  • OEM transformer assemblies.
  • Utility power distribution equipment.
  • Industrial switchgear installations.

Technical Specifications

Voltage 400 V
Manufacturer Mersen
Series NH gTr 400 V Transformer Fuse-Links
Model NH2GTR125KVA-8
Item number D1028701
Product type NH transformer protection fuse-link
Fuse characteristic gTr
Fuse size NH2
Transformer rating 125 kVA
Rated current 180 A
Rated voltage 400 V AC
Current type AC
Indication system Top indicator
Gripping lugs Live gripping lugs
Body width 40 mm
Weight approx. 0.5 kg
EAN 3605340545081
Compliance RoHS compliant
HS Code 85361090
Country of Manufacture Hungary
Device Type Fuse link
Fuse Type NH (DIN)
Fuse Size NH2
Fuse Class gTr
Current 180 A

Frequently Asked Questions

What is the Mersen NH2GTR125KVA-8 used for?

It is specifically designed to protect 125 kVA low-voltage distribution transformers against short-circuit faults while accommodating transformer inrush currents.

What transformer size is this fuse intended for?

The fuse is designed for transformers with a nominal rating of 125 kVA.

What is the rated current of this fuse-link?

The NH2GTR125KVA-8 has a rated current of 180 A.

What does the gTr characteristic mean?

The gTr characteristic is optimised for transformer protection, providing excellent selectivity while tolerating normal transformer energisation currents.

Does this fuse include a blown-fuse indicator?

Yes. It features a top-mounted indicator for quick visual identification after fuse operation.

Trusted Transformer Protection Worldwide

Mersen NH gTr transformer fuse-links are widely specified by electrical engineers, switchgear manufacturers and utility providers to deliver reliable transformer protection, excellent selectivity and dependable performance in low-voltage power distribution systems.

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