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MERSEN FUSE NH2 200KVA 400V GTR MI NH22GTR200KVA

MERSEN FUSE NH2 200KVA 400V GTR MI NH22GTR200KVA

Mersen NH22GTR200KVA NH2 gTr transformer fuse-link rated at 289 A and 400 V AC for protection of 200 kVA distribution transformers.

SKU: NH22GTR200KVAAlt SKU: NH22GTR200KVAMPN: G1030498
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List Price £37.72 ex VAT
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Why Choose the Mersen NH22GTR200KVA Transformer Protection Fuse-Link?

The Mersen NH22GTR200KVA is a specialist DIN NH gTr fuse-link designed specifically for protecting distribution transformers in low-voltage electrical installations. Part of Mersen's NH gTr 400 V AC transformer fuse-link range, it features a time/current characteristic engineered to accommodate transformer energisation currents whilst providing dependable protection against overloads and short-circuit faults.

Unlike standard gG fuse-links, the gTr operating characteristic is optimised for transformer applications. This helps reduce nuisance operation caused by transformer magnetising inrush currents whilst maintaining excellent fault protection and coordination with downstream protective devices.

Designed for 200 kVA distribution transformers, the NH22GTR200KVA features a 289 A rated current, 400 V AC rated voltage and an NH2 fuse size. It incorporates a centre indicator and live gripping lugs, making it suitable for industrial substations, transformer feeder circuits, switchboards and commercial power distribution systems.

Key Advantages

  • Purpose-designed for distribution transformer protection.
  • Suitable for 200 kVA transformer installations.
  • 289 A rated current.
  • 400 V AC rated voltage.
  • gTr characteristic withstands transformer energisation currents.
  • High breaking capacity for dependable fault interruption.

Key Features

  • Mersen NH gTr transformer fuse-link series.
  • Catalogue number: NH22GTR200KVA.
  • Item number: G1030498.
  • NH2 fuse size.
  • 289 A rated current.
  • 400 V AC rated voltage.
  • Suitable for 200 kVA transformers.
  • gTr transformer protection characteristic.
  • Centre indicator.
  • Live gripping lugs.
  • Ceramic high rupturing capacity construction.
  • RoHS compliant.

Reliable Protection for Distribution Transformers

The NH22GTR200KVA is specifically engineered for transformer protection, allowing it to tolerate normal transformer magnetising inrush currents whilst providing rapid interruption during overload and fault conditions. This improves transformer reliability and helps minimise unnecessary fuse replacement.

Its current-limiting design and high fault interruption capability make it ideal for transformer incomers, industrial substations, utility networks and commercial power distribution systems requiring dependable transformer protection.

Typical Applications

  • Distribution transformer protection.
  • Industrial substations.
  • Transformer feeder circuits.
  • Main low-voltage switchboards.
  • Commercial power distribution systems.
  • Utility and industrial electrical installations.

Technical Specifications

Voltage 400 V
Manufacturer Mersen
Series NH Fuse-links gTr 400 VAC
Model NH22GTR200KVA
Item number G1030498
EAN 3605340545449
Product type DIN NH transformer fuse-link
Fuse size NH2
Rated current 289 A
Transformer rating 200 kVA
Rated voltage 400 V AC
Operating characteristic gTr
Body width 50 mm
Power dissipation 16 W
Weight Approx. 0.5 kg
Indicator Centre indicator
Terminal type Live gripping lugs
Compliance IEC / RoHS
HS Code 85361090
Country of Manufacture Hungary
Device Type Fuse link
Fuse Type NH (DIN)
Fuse Size NH2
Fuse Class gTr
Current 289 A

Frequently Asked Questions

What is the Mersen NH22GTR200KVA used for?

The NH22GTR200KVA is specifically designed to protect 200 kVA distribution transformers against overloads and short-circuit faults.

What transformer size is this fuse designed for?

This model is intended for transformers with a nominal rating of 200 kVA.

What is the rated current of the fuse-link?

The NH22GTR200KVA has a 289 A rated current.

What does the gTr operating characteristic mean?

The gTr characteristic is specifically developed for transformer protection, allowing the fuse to withstand transformer energisation currents whilst providing dependable protection against overloads and electrical faults.

Why use a transformer fuse instead of a standard gG fuse?

Transformer fuse-links have a dedicated operating characteristic matched to transformer applications, reducing nuisance operation during energisation whilst maintaining excellent protection under fault conditions.

Trusted by Power Distribution Professionals

Mersen NH gTr transformer fuse-links are trusted worldwide by utilities, panel builders and industrial engineers for dependable transformer protection, excellent selectivity and reliable performance in demanding electrical distribution systems.

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