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MERSEN FUSE NH4A 160KVA400V.NH4A2GTR160KVA NH4A2GTR160KVA
Mersen NH4A2GTR160KVA DIN NH4a gTr transformer protection fuse-link rated at 231 A and 400 V AC for 160 kVA low-voltage transformers.
£101.62
Why Choose the Mersen NH4A2GTR160KVA Transformer Protection Fuse-Link?
The Mersen NH4A2GTR160KVA is a specialist DIN NH gTr fuse-link designed to protect low-voltage distribution transformers against overload and short-circuit conditions. Part of the established Mersen NH transformer protection range, it provides a time-current characteristic matched to transformer applications for dependable and selective circuit protection.
This fuse-link uses the large NH4a format and incorporates live gripping lugs for handling with an approved low-voltage HRC fuse puller. Its centre-mounted operation indicator allows maintenance personnel to identify an operated fuse quickly during inspection and fault diagnosis.
Designed for a 160 kVA transformer rating, the NH4A2GTR160KVA has a rated current of 231 A and is suitable for 400 V AC systems. Its robust construction makes it suitable for transformer feeders, industrial switchboards and commercial power distribution installations.
Key Advantages
- Specialist gTr characteristic for transformer protection.
- Designed for 160 kVA low-voltage transformers.
- 231 A rated current matched to the transformer application.
- 400 V AC rated voltage for low-voltage distribution systems.
- Centre indicator enables quick visual identification after operation.
- Live gripping lugs support controlled replacement using an approved NH fuse puller.
Key Features
- Mersen NH gTr transformer fuse-link range.
- 160 kVA transformer rating.
- 231 A rated current.
- 400 V AC rated voltage.
- NH4a fuse size.
- gTr full-range transformer protection characteristic.
- Centre-mounted operation indicator.
- Live gripping lugs.
- Robust ceramic fuse body.
- Blade-contact design for compatible DIN NH fuse bases.
Reliable Protection for Low-Voltage Transformers
The gTr operating characteristic is designed specifically for transformer circuits. It provides overload and short-circuit protection while accommodating the temporary magnetising inrush current that occurs when a transformer is energised.
Correct fuse selection helps protect transformer windings, feeder cables and associated switchgear while reducing the risk of avoidable operation during normal starting conditions. Installation and replacement must be completed by qualified electrical personnel using suitable equipment and isolation procedures.
Typical Applications
- 160 kVA low-voltage distribution transformers.
- Transformer feeder protection.
- Industrial power distribution switchboards.
- Commercial building electrical systems.
- Factory and processing plant substations.
- OEM switchgear and transformer assemblies.
Technical Specifications
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| Current | 231 A | |
|---|---|---|
| Voltage | 400 V | |
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH4a | |
| Fuse Class | gTr | |
| Manufacturer | Mersen | |
| Series | NH Fuse-Links gTr 400 V AC | |
| Model | NH4A2GTR160KVA | |
| Item number | C1030517 | |
| EAN | 3605340535501 | |
| Product type | DIN NH transformer protection fuse-link | |
| Fuse characteristic | gTr | |
| Fuse size | NH4a | |
| Transformer rating | 160 kVA | |
| Rated current | 231 A | |
| Rated voltage | 400 V AC | |
| Indicator position | Centre indicator | |
| Gripping lug type | Live gripping lugs | |
| Body width | 72.9 mm | |
| Contact type | DIN NH blade contacts | |
| Installation | Compatible DIN NH fuse base or switch-fuse assembly |
Frequently Asked Questions
What is the Mersen NH4A2GTR160KVA used for?
It is designed to protect a 160 kVA low-voltage distribution transformer and its associated feeder circuit against overload and short-circuit conditions.
What does the gTr fuse characteristic mean?
The gTr characteristic is a full-range fuse category developed specifically for transformer protection, with operating behaviour suited to transformer load and energisation characteristics.
What are the electrical ratings of this fuse-link?
The NH4A2GTR160KVA is rated at 231 A and 400 V AC for a transformer rating of 160 kVA.
What physical fuse size is the NH4A2GTR160KVA?
It is an NH4a DIN NH fuse-link with a body width of approximately 72.9 mm.
Does this fuse-link have an operation indicator?
Yes. It includes a centre-mounted indicator that provides visual confirmation when the fuse-link has operated.
Trusted by Power Distribution Professionals Worldwide
Mersen NH transformer fuse-links are specified by switchgear manufacturers, panel builders and electrical engineers for dependable transformer protection and reliable performance in demanding low-voltage distribution systems.
