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MERSEN FUSE NH3C 100KVA 400V GTR MI NH3GTR100KVA

MERSEN FUSE NH3C 100KVA 400V GTR MI NH3GTR100KVA

Mersen NH3GTR100KVA NH3 gTr transformer protection fuse-link rated 144 A, 400 V AC for 100 kVA transformers.

SKU: NH3GTR100KVAAlt SKU: NH3GTR100KVAMPN: L1030502A
Price
List Price £55.96 ex VAT
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Why Choose the Mersen NH3GTR100KVA Transformer Fuse-Link?

The Mersen NH3GTR100KVA is a high-performance NH3 gTr fuse-link engineered specifically for the protection of low-voltage distribution transformers. Manufactured to the DIN NH standard, it provides dependable overload and short-circuit protection whilst accommodating the high inrush currents associated with transformer energisation.

Designed for transformers rated at 100 kVA, this fuse-link features a 144 A rated current, 400 V AC operating voltage and a robust ceramic body with live gripping lugs and a centre-mounted indicator. The specialised gTr operating characteristic provides excellent selectivity with downstream gG fuse-links, helping maximise system reliability.

Its high breaking capacity and rugged construction make the NH3GTR100KVA an ideal solution for industrial switchboards, transformer protection panels and commercial electrical distribution systems where reliable transformer protection is essential.

Key Advantages

  • Purpose-designed gTr transformer protection fuse-link.
  • Suitable for 100 kVA transformers.
  • 144 A current rating for reliable transformer protection.
  • 400 V AC rated voltage for industrial low-voltage systems.
  • Centre-mounted visual indicator for quick fuse status identification.
  • High breaking capacity for dependable fault clearance.
  • Manufactured to DIN NH standards for compatibility with standard NH fuse bases.

Key Features

  • Mersen NH gTr fuse-link series.
  • NH3 fuse size.
  • 100 kVA transformer rating.
  • 144 A rated current.
  • 400 V AC rated voltage.
  • gTr operating characteristic.
  • Centre-mounted blown fuse indicator.
  • Live gripping lugs.
  • Silver-plated copper blade contacts.
  • High-strength ceramic body.
  • RoHS compliant.

Designed for Reliable Transformer Protection

Unlike general-purpose fuse-links, gTr fuse-links are specifically developed to withstand transformer magnetising inrush currents whilst still providing dependable protection against overloads and short-circuit faults. This helps reduce nuisance operation whilst maintaining optimum protection for valuable transformer assets.

The Mersen NH3GTR100KVA is suitable for industrial and commercial electrical installations requiring dependable transformer protection and coordinated selectivity with downstream protective devices.

Typical Applications

  • 100 kVA low-voltage transformers.
  • Industrial switchboards.
  • Commercial electrical distribution systems.
  • Transformer protection panels.
  • Motor control centres.
  • OEM electrical equipment.
  • Infrastructure and utilities.

Technical Specifications

Voltage 400 V
Manufacturer Mersen
Series NH Fuse-Links gTr 400 VAC
Model NH3GTR100KVA
Manufacturer part number L1030502A
Product type Transformer protection fuse-link
Operating class gTr
Fuse size NH3
Transformer rating 100 kVA
Rated current 144 A
Rated voltage 400 V AC
Current type AC
Indicator Centre indicator
Gripping lugs Live gripping lugs
Body width 50 mm
Body material Ceramic
Mounting type NH fuse base
EAN 3605340535280
RoHS compliant Yes
HS Code 85361090
Country of Manufacture Hungary
Device Type Fuse link
Fuse Size NH3
Fuse Class gTr
Current 144 A

Frequently Asked Questions

What is the Mersen NH3GTR100KVA used for?

It is designed specifically for protecting low-voltage transformers against overloads and short-circuit faults.

What transformer size is this fuse-link suitable for?

This model is intended for transformers rated at approximately 100 kVA.

What are the electrical ratings?

The fuse-link is rated at 144 A and 400 V AC.

What does the gTr classification mean?

gTr indicates a full-range transformer protection fuse with a time-current characteristic specifically developed for transformer applications.

Does this fuse include a blown fuse indicator?

Yes. It incorporates a centre-mounted visual indicator to show when the fuse has operated.

Trusted Transformer Protection from Mersen

Mersen NH gTr fuse-links are trusted by electrical engineers, panel builders and industrial maintenance professionals for dependable transformer protection, excellent fault interruption performance and long-term reliability.

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