Why Choose the Mersen NH22GTR125KVA-8 Transformer Fuse-Link?
The Mersen NH22GTR125KVA-8 is a specialised DIN NH gTr transformer fuse-link designed to provide reliable protection for low voltage distribution transformers. Manufactured by Mersen, this NH2 size fuse-link is engineered to withstand normal transformer magnetising inrush currents while interrupting damaging short-circuit currents.
Part of the established Mersen NH gTr 400 V AC fuse-link range, the NH22GTR125KVA-8 features live gripping lugs and a top-mounted indicator. These features support professional handling with a suitable NH fuse replacement device and enable rapid visual identification when the fuse-link has operated.
Designed for protecting 125 kVA transformers, the NH22GTR125KVA-8 has a rated current of approximately 180 A and is intended for use on 400 V AC systems. Its current-limiting construction helps reduce thermal and mechanical stress on transformers, cables and associated switchgear during fault conditions.
Key Advantages
- Purpose-designed for low voltage transformer protection.
- Suitable for 125 kVA transformers.
- 180 A rated current for 400 V AC transformer circuits.
- gTr operating characteristic accommodates transformer energisation currents.
- Current-limiting performance helps reduce fault energy and equipment damage.
- Top indicator provides clear visual fuse status indication.
- Live gripping lugs support handling with an appropriate NH fuse puller.
Key Features
- Mersen NH gTr transformer fuse-link series.
- 125 kVA transformer rating.
- 180 A rated current.
- 400 V AC rated operating voltage.
- DIN NH2 size construction.
- gTr transformer protection characteristic.
- Top-mounted fuse status indicator.
- Live gripping lugs.
- Current-limiting fuse element design.
- Durable ceramic insulating body.
The Mersen NH22GTR125KVA-8 is engineered around the operating requirements of distribution transformers. When a transformer is energised, it can draw a temporary magnetising current substantially higher than its normal operating current. The specialised gTr characteristic allows this expected inrush to pass without unnecessary fuse operation.
During a genuine short-circuit fault, the fuse-link rapidly interrupts the excessive current and limits the energy passed into the protected circuit. This helps protect transformer windings, cables, busbars and switchgear while reducing the likelihood of extensive equipment damage and prolonged system downtime.
Typical Applications
- 125 kVA low voltage distribution transformers.
- Industrial transformer protection.
- Commercial power distribution systems.
- Low voltage switchboards.
- Transformer feeder panels.
- OEM electrical distribution equipment.
