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MERSEN FUSE NH4AC 200KVA 400V GTR TI NH4AGTR200KVA-8

MERSEN FUSE NH4AC 200KVA 400V GTR TI NH4AGTR200KVA-8

Mersen NH4AGTR200KVA-8 DIN NH4a gTr transformer protection fuse-link rated at 289 A and 400 V AC for 200 kVA transformers with top indicator and live gripping lugs.

SKU: NH4AGTR200KVA-8Alt SKU: NH4AGTR200KVA-8MPN: H1028728
Price
List Price £306.32 ex VAT
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Manufacturer Lead Time

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Why Choose the Mersen NH4AGTR200KVA-8 Transformer Fuse-Link?

The Mersen NH4AGTR200KVA-8 is a heavy-duty DIN NH gTr transformer protection fuse-link developed to provide reliable protection for low voltage distribution transformers against overload and short-circuit faults. Manufactured by Mersen, this NH4a fuse-link is specifically engineered to match the operating characteristics of transformers, delivering dependable protection whilst accommodating normal transformer energisation currents.

Part of the proven Mersen NH gTr 400 V AC fuse-link series, the NH4AGTR200KVA-8 is designed for transformers with a nominal capacity of 200 kVA. It features a 289 A rated current, 400 V AC operating voltage, top indicator and live gripping lugs, allowing safe installation and efficient maintenance in industrial power distribution systems.

Its NH4a construction offers excellent fault interruption capability and dependable long-term performance, making it ideal for transformer panels, substations, industrial switchboards and commercial electrical installations requiring dedicated transformer protection.

Key Advantages

  • Purpose-designed gTr fuse-link for transformer protection.
  • Suitable for 200 kVA low voltage transformers.
  • 289 A rated current for transformer applications.
  • 400 V AC operating voltage.
  • Top indicator enables rapid identification of an operated fuse.
  • Live gripping lugs support safe replacement using an approved NH fuse puller.
  • High breaking capacity for demanding industrial electrical systems.
  • Designed in accordance with IEC NH fuse standards.

Key Features

  • Mersen NH gTr transformer protection fuse-link series.
  • Catalogue number: NH4AGTR200KVA-8.
  • Mersen item number: H1028728.
  • Fuse size: NH4a.
  • Transformer capacity: 200 kVA.
  • Rated current: 289 A.
  • Rated voltage: 400 V AC.
  • Utilisation category: gTr.
  • Top operated-fuse indicator.
  • Live gripping lugs.
  • Blade contact construction.
  • Body width approximately 72.9 mm.

Reliable Protection for Distribution Transformers

The Mersen NH4AGTR200KVA-8 is engineered specifically for transformer protection. Its gTr operating characteristic accommodates transformer magnetising inrush currents whilst providing dependable protection against overloads and high prospective short-circuit faults, helping maximise transformer service life and system reliability.

The fuse-link should be installed in a compatible NH4a fuse base and handled only by qualified electrical personnel using an approved NH fuse replacement device and suitable personal protective equipment.

Typical Applications

  • 200 kVA low voltage distribution transformers.
  • Industrial transformer panels.
  • 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 NH4AGTR200KVA-8
Item number H1028728
Product type DIN NH transformer protection fuse-link
Fuse size NH4a
Utilisation category gTr
Transformer nominal capacity 200 kVA
Rated current 289 A
Rated voltage 400 V AC
Current type AC
Indicator Top indicator
Gripping lugs Live tags
Body width 72.9 mm
EAN 3605340534962
Compliance RoHS compliant
HS Code 85361090
Country of Manufacture Hungary
Device Type Fuse link
Fuse Type NH (DIN)
Fuse Size NH4a
Fuse Class gTr
Current 289 A

Frequently Asked Questions

What is the Mersen NH4AGTR200KVA-8 used for?

The NH4AGTR200KVA-8 is designed to protect 200 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 200 kVA.

What is the rated current?

The NH4AGTR200KVA-8 has a rated current of 289 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 NH4AGTR200KVA-8 incorporates a top 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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