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MERSEN FUSE NH4AC 160KVA 400V GTR TI NH4AGTR160KVA-8

MERSEN FUSE NH4AC 160KVA 400V GTR TI NH4AGTR160KVA-8

Mersen NH4AGTR160KVA-8 NH4a gTr transformer fuse-link rated at 231 A and 400 V AC for protection of 160 kVA distribution transformers.

SKU: NH4AGTR160KVA-8Alt SKU: NH4AGTR160KVA-8MPN: G1028727
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List Price £306.32 ex VAT
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Why Choose the Mersen NH4AGTR160KVA-8 Transformer Protection Fuse-Link?

The Mersen NH4AGTR160KVA-8 is a specialist DIN NH gTr fuse-link developed specifically for protecting distribution transformers in low-voltage electrical systems. As part of Mersen's NH gTr 400 V AC transformer fuse-link range, it provides a time/current characteristic optimised to withstand transformer energisation currents whilst delivering dependable protection against overloads and short-circuit faults.

Unlike standard gG fuse-links, the gTr operating characteristic is designed specifically for transformer applications. This helps prevent nuisance fuse operation during transformer inrush whilst maintaining excellent fault protection and coordination with downstream protective devices.

Designed for 160 kVA transformers, the NH4AGTR160KVA-8 features a 231 A rated current, 400 V AC rated voltage and an NH4a body size. The fuse incorporates a top indicator and live gripping lugs, making it ideal for industrial substations, transformer feeders, switchboards and commercial power distribution systems.

Key Advantages

  • Purpose-designed for distribution transformer protection.
  • Suitable for 160 kVA transformer installations.
  • 231 A rated current.
  • 400 V AC rated voltage.
  • gTr characteristic withstands transformer magnetising inrush currents.
  • High breaking capacity for dependable fault interruption.

Key Features

  • Mersen NH gTr transformer fuse-link series.
  • Catalogue number: NH4AGTR160KVA-8.
  • Item number: G1028727.
  • NH4a fuse size.
  • 231 A rated current.
  • 400 V AC rated voltage.
  • Suitable for 160 kVA transformers.
  • gTr transformer protection characteristic.
  • Top indicator.
  • Live gripping lugs.
  • Ceramic high rupturing capacity construction.
  • RoHS compliant.

Reliable Protection for Distribution Transformers

The NH4AGTR160KVA-8 has been engineered specifically for transformer protection, allowing it to accommodate transformer inrush currents without unnecessary operation whilst providing rapid interruption under overload and fault conditions. This improves operational reliability and transformer availability.

Its current-limiting design and high fault interruption capability make it suitable for transformer incomers, industrial substations, utility installations and commercial power distribution systems where dependable transformer protection is essential.

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 NH4AGTR160KVA-8
Item number G1028727
EAN 3605340534955
Product type DIN NH transformer fuse-link
Fuse size NH4a
Rated current 231 A
Transformer rating 160 kVA
Rated voltage 400 V AC
Operating characteristic gTr
Power dissipation 18 W
Body width 72.9 mm
Indicator Top 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 NH4a
Fuse Class gTr
Current 231 A

Frequently Asked Questions

What is the Mersen NH4AGTR160KVA-8 used for?

The NH4AGTR160KVA-8 is specifically designed to protect 160 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 160 kVA.

What is the rated current of the fuse-link?

The NH4AGTR160KVA-8 has a 231 A rated current.

What does the gTr operating characteristic mean?

The gTr characteristic is specifically developed for transformer protection, allowing the fuse to tolerate transformer energisation currents whilst providing dependable protection against 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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