MERSEN FUSE NH3 250KVA 400V GTR SGL/1 NH32GTR250KVA-1

MERSEN FUSE NH3 250KVA 400V GTR SGL/1 NH32GTR250KVA-1

Mersen NH32GTR250KVA-1 DIN NH3 gTr transformer protection fuse-link rated at 361 A and 400 V AC for 250 kVA distribution transformers.

SKU: NH32GTR250KVA-1Alt SKU: NH32GTR250KVA-1MPN: C1030540A
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Why Choose the Mersen NH32GTR250KVA-1 Transformer Protection Fuse-Link?

The Mersen NH32GTR250KVA-1 is a specialist DIN NH gTr fuse-link engineered to provide dependable overload and short-circuit protection for low voltage distribution transformers. As part of the trusted Mersen NH gTr transformer protection range, it delivers a time-current characteristic specifically matched to transformer applications, helping maximise equipment protection while reducing nuisance operation.

Manufactured to IEC and DIN NH standards, this NH3 size fuse-link features isolated gripping lugs, a centre-mounted operation indicator and a robust ceramic body. Its high-quality construction provides long service life and reliable performance in demanding industrial and commercial power distribution systems.

Designed for the protection of 250 kVA distribution transformers, the NH32GTR250KVA-1 has a 361 A rated current, a 400 V AC operating voltage and a body width of approximately 71 mm, making it ideal for transformer feeders, substations and OEM switchgear assemblies.

Key Advantages

  • Purpose-designed gTr characteristic for transformer protection.
  • Suitable for protecting 250 kVA distribution transformers.
  • 361 A rated current for industrial transformer applications.
  • 400 V AC rated voltage.
  • Centre-mounted indicator provides rapid visual fuse status confirmation.
  • Isolated gripping lugs improve handling during replacement.

Key Features

  • Mersen NH gTr transformer fuse-link series.
  • Catalogue number: NH32GTR250KVA-1.
  • Transformer rating: 250 kVA.
  • 361 A rated current.
  • 400 V AC IEC rated voltage.
  • DIN NH Size NH3.
  • gTr utilisation category.
  • Centre-mounted operation indicator.
  • Isolated gripping lugs.
  • Body width approximately 71 mm.

Reliable Protection for Distribution Transformers

The Mersen NH32GTR250KVA-1 is specifically developed for transformer protection applications. Its gTr operating characteristic accommodates transformer energisation currents while providing dependable protection against overloads and short-circuit faults, helping to improve transformer reliability and service life.

Its robust NH construction, centre operation indicator and isolated gripping lugs make it well suited to industrial substations, commercial power distribution systems, OEM switchgear and utility transformer installations.

Typical Applications

  • 250 kVA low voltage distribution transformers.
  • Industrial substations.
  • Commercial power distribution systems.
  • Transformer feeder protection.
  • OEM switchgear assemblies.
  • Utility electrical infrastructure.

Technical Specifications

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Fuse Indication Visual indicator
Voltage 400 V
Device Type Fuse link
Fuse Type NH (DIN)
Fuse Size NH3
Fuse Class gTr
Current 361 A
Manufacturer Mersen
Series NH Fuse-links gTr 400 VAC
Model NH32GTR250KVA-1
Item number X1030512A
EAN 3605340535372
Product type DIN NH transformer protection fuse-link
Fuse characteristic gTr
Fuse size NH3
Transformer rating 250 kVA
Rated current 361 A
Rated voltage 400 V AC
Indicator Centre indicator
Gripping lugs Isolated gripping lugs
Body width 71 mm
Weight Approx. 1.0 kg
Compliance IEC / DIN NH, RoHS

Frequently Asked Questions

What is the Mersen NH32GTR250KVA-1 used for?

It is designed to protect 250 kVA low voltage distribution transformers against overload and short-circuit faults.

What does the gTr fuse characteristic mean?

The gTr characteristic is specifically developed for transformer protection, providing a time-current response matched to transformer operating characteristics.

What is the rated current of this fuse?

The NH32GTR250KVA-1 has a rated current of 361 A.

What transformer size is this fuse intended for?

This model is designed for protecting 250 kVA distribution transformers.

Does this fuse include an operation indicator?

Yes. It incorporates a centre-mounted indicator that provides clear visual confirmation when the fuse has operated.

Trusted by Power Distribution Professionals Worldwide

Mersen NH transformer fuse-links are trusted by utilities, panel builders and electrical engineers for dependable transformer protection, excellent reliability and long service life in demanding low voltage power distribution systems.