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MERSEN FUSE NH2 75KVA 400V GTR NH22GTR75KVA

MERSEN FUSE NH2 75KVA 400V GTR NH22GTR75KVA

Mersen NH22GTR75KVA DIN NH size 2C gTr transformer fuse-link rated for 75 kVA transformers, 108 A and 400 V AC with centre indicator and live gripping lugs.

SKU: NH22GTR75KVAAlt SKU: NH22GTR75KVAMPN: D1030495
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List Price £33.95 ex VAT
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Why Choose the Mersen NH22GTR75KVA Transformer Protection Fuse?

The Mersen NH22GTR75KVA is a DIN NH size 2C gTr fuse-link specifically developed for protecting 75 kVA low-voltage distribution transformers. Designed for operation on 400 V AC systems, it provides reliable transformer protection while accommodating the high magnetising inrush currents that occur during transformer energisation.

The specialised gTr operating characteristic is engineered to match the electrical behaviour of distribution transformers. This enables dependable protection against short circuits while helping prevent nuisance fuse operation during normal transformer energisation, improving system reliability and equipment availability.

Manufactured to the DIN NH standard, the NH22GTR75KVA features a ceramic body, silver-plated blade contacts, live gripping lugs and a centre-mounted blown fuse indicator. It is intended for installation in compatible NH fuse bases and transformer switch-fuse assemblies by qualified electrical professionals.

Key Advantages

  • Designed specifically for 75 kVA distribution transformer protection.
  • Specialised gTr characteristic optimised for transformer applications.
  • 108 A rated current for 400 V AC transformer systems.
  • Withstands transformer magnetising inrush currents.
  • Centre-mounted indicator allows easy fuse status identification.
  • Compatible with standard DIN NH size 2C fuse systems.

Key Features

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

Reliable Protection for Distribution Transformers

Transformer protection requires a fuse capable of tolerating temporary inrush currents while providing rapid interruption of fault currents. The Mersen gTr characteristic is specifically developed for transformer applications, delivering dependable protection without unnecessary fuse operation during normal energisation.

The NH22GTR75KVA is designed for use in compatible NH fuse bases and transformer switch-fuse assemblies. Installation and replacement should only be carried out by suitably qualified electrical professionals using the appropriate NH fuse handling equipment.

Typical Applications

  • 75 kVA low-voltage distribution transformers.
  • Transformer switch-fuse units.
  • Industrial substations.
  • Commercial power distribution systems.
  • OEM transformer assemblies.
  • Industrial switchgear.
  • Utility distribution equipment.

Technical Specifications

Voltage 400 V
Manufacturer Mersen
Series NH gTr 400 V Transformer Fuse-Links
Model NH22GTR75KVA
Item number T1028692
Product type NH transformer protection fuse-link
Fuse utilisation category gTr
Fuse size NH2C (NH22)
Transformer rating 75 kVA
Rated current 108 A
Rated voltage 400 V AC
Voltage type AC
Indicator Centre indicator
Gripping lugs Live gripping lugs
Power dissipation 7.3 W
Body width 40 mm
Weight Approx. 0.5 kg
EAN 3605340545357
Compliance RoHS compliant
Device Type Fuse link
Fuse Type NH (DIN)
Fuse Size NH2
Fuse Class gTr
Current 108 A

Frequently Asked Questions

What is the Mersen NH22GTR75KVA used for?

It is specifically designed to protect 75 kVA low-voltage distribution transformers against short-circuit faults while accommodating transformer energisation currents.

What transformer size is this fuse intended for?

The NH22GTR75KVA is designed for transformers with a nominal rating of 75 kVA.

What is the rated current of this fuse-link?

The fuse-link has a rated current of 108 A.

What does the gTr characteristic mean?

The gTr characteristic is specifically optimised for transformer protection, allowing normal magnetising inrush currents while providing dependable fault protection.

Does this fuse include a blown-fuse indicator?

Yes. The NH22GTR75KVA features a centre-mounted indicator to provide clear visual confirmation when the fuse has operated.

Trusted Transformer Protection Worldwide

Mersen NH gTr transformer fuse-links are trusted by electrical engineers, panel builders and utility providers for reliable transformer protection, excellent selectivity and dependable performance in low-voltage distribution systems.

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