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MERSEN FUSE NH2 250KVA 400V GTR MI NH22GTR250KVA

MERSEN FUSE NH2 250KVA 400V GTR MI NH22GTR250KVA

Mersen NH22GTR250KVA DIN NH2 gTr transformer protection fuse-link rated at 361 A and 400 V AC for 250 kVA transformers with centre indicator and live gripping lugs.

SKU: NH22GTR250KVAAlt SKU: NH22GTR250KVAMPN: H1030499
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List Price £37.72 ex VAT
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Why Choose the Mersen NH22GTR250KVA Transformer Fuse-Link?

The Mersen NH22GTR250KVA is a high-performance DIN NH gTr transformer protection fuse-link developed to provide dependable overload and short-circuit protection for low voltage distribution transformers. Manufactured by Mersen, this NH2 fuse-link is specifically engineered with characteristics matched to transformer applications, allowing it to withstand normal transformer energisation currents whilst providing rapid protection against fault conditions.

Part of the proven Mersen NH gTr 400 V AC fuse-link series, the NH22GTR250KVA is designed for transformers with a nominal capacity of 250 kVA. It features a 361 A rated current, 400 V AC operating voltage, a centre indicator and live gripping lugs, making it ideal for industrial power distribution systems and transformer installations.

Its NH2 construction offers high breaking capacity together with reliable long-term performance, making it suitable for transformer switchboards, substations, commercial buildings and industrial electrical distribution systems where dedicated transformer protection is essential.

Key Advantages

  • Purpose-designed gTr fuse-link for transformer protection.
  • Suitable for 250 kVA low voltage transformers.
  • 361 A rated current for transformer applications.
  • 400 V AC operating voltage.
  • Centre indicator enables rapid identification of an operated fuse.
  • Live gripping lugs support safe replacement using an approved NH fuse puller.
  • High 100 kA breaking capacity for demanding fault conditions.
  • Manufactured in accordance with IEC NH standards.

Key Features

  • Mersen NH gTr transformer protection fuse-link series.
  • Catalogue number: NH22GTR250KVA.
  • Mersen item number: H1030499.
  • Fuse size: NH2.
  • Transformer capacity: 250 kVA.
  • Rated current: 361 A.
  • Rated voltage: 400 V AC.
  • Utilisation category: gTr.
  • Centre operated-fuse indicator.
  • Live gripping lugs.
  • Blade contact construction.
  • Body width: 50 mm.

Reliable Protection for Distribution Transformers

The Mersen NH22GTR250KVA is specifically designed for transformer protection. Its gTr operating characteristic accommodates transformer magnetising inrush currents whilst providing dependable protection against overloads and high prospective short-circuit currents, helping maximise transformer reliability and service life.

The fuse-link should be installed in a compatible NH2 fuse base and handled only by qualified electrical personnel using an approved NH fuse replacement device and appropriate personal protective equipment.

Typical Applications

  • 250 kVA low voltage distribution transformers.
  • Industrial transformer switchboards.
  • Commercial power distribution systems.
  • Electrical substations.
  • Industrial switchboards.
  • Manufacturing and process facilities.

Technical Specifications

Voltage 400 V
Manufacturer Mersen
Series NH Fuse-Links gTr 400 VAC
Model NH22GTR250KVA
Item number H1030499
Product type DIN NH transformer protection fuse-link
Fuse size NH2
Utilisation category gTr
Transformer nominal capacity 250 kVA
Rated current 361 A
Rated voltage 400 V AC
Rated breaking capacity 100 kA AC
Current type AC
Indicator Centre indicator
Gripping lugs Live tags
Body width 50 mm
EAN 3605340545456
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 361 A

Frequently Asked Questions

What is the Mersen NH22GTR250KVA used for?

The NH22GTR250KVA is designed to protect 250 kVA low voltage distribution transformers against overload and short-circuit faults.

What transformer size is this fuse designed for?

This fuse-link is designed for transformers with a nominal rating of 250 kVA.

What is the rated current?

The NH22GTR250KVA has a rated current of 361 A.

What does the gTr classification mean?

The gTr utilisation category identifies fuse-links specifically developed for transformer protection, providing operating characteristics suited to transformer inrush currents whilst protecting against overloads and short circuits.

Does this fuse include an indicator?

Yes. The NH22GTR250KVA incorporates a centre indicator that provides clear visual identification when the fuse-link has operated.

Trusted by Electrical Professionals Worldwide

Mersen NH gTr transformer fuse-links are trusted by transformer manufacturers, panel builders, utilities and industrial maintenance engineers for dependable protection of low voltage distribution transformers.

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