Why Choose the Mersen D1000112 High Voltage Transformer Fuse?
The Mersen D1000112 is a dependable high voltage DIN back-up fuse designed to protect medium voltage transformers against the damaging effects of short-circuit currents. Part of the proven Mersen Limitor® P range, this fuse-link is suitable for high voltage switchgear, controlgear and electrical distribution systems where reliable fault protection is essential.
Manufactured using high quality materials, including pure silver fuse elements, silver-coated copper end caps and a durable ceramic body, the D1000112 provides consistent electrical performance and robust mechanical strength. Its standard 80 N striker supports mechanical indication and operation with compatible switchgear mechanisms following fuse operation.
With a rated voltage of 24 kV AC, a rated current of 125 A and a VDE T4 DIN format measuring approximately 88 mm in diameter and 442 mm in length, the D1000112 is suited to transformer protection in utility substations, industrial power networks and medium voltage distribution equipment.
Key Advantages
- Designed specifically for medium voltage transformer protection.
- 24 kV AC rated voltage for high voltage distribution systems.
- 125 A rated current.
- Back-up fuse performance in accordance with IEC 60282-1.
- Standard 80 N striker for compatible switchgear mechanisms.
- Pure silver fuse elements support reliable interruption performance.
- Robust ceramic body provides excellent thermal and mechanical durability.
- Suitable for utility, industrial and OEM medium voltage equipment.
Key Features
- Mersen Limitor® P high voltage fuse range.
- 24 kV AC rated voltage.
- 125 A rated current.
- VDE T4 DIN fuse format.
- 88 mm diameter and 442 mm length.
- Integrated standard 80 N striker.
- High purity silver fuse elements.
- Silver-coated copper end caps.
- Durable ceramic fuse body.
- Designed for transformer short-circuit protection.
High voltage back-up fuses such as the Mersen D1000112 interrupt high fault currents that could otherwise cause severe thermal and mechanical damage to transformers and associated distribution equipment. They are normally coordinated with suitable switching and overload protection devices to provide comprehensive transformer protection.
The Limitor® P construction combines proven fuse technology with strong insulating materials and reliable striker operation. This makes the D1000112 suitable for demanding electrical installations where safety, equipment protection and continuity of service are important.
Typical Applications
- Medium voltage transformer protection.
- High voltage switchgear and controlgear.
- Utility substations and distribution networks.
- Industrial power distribution systems.
- Renewable energy substations.
- Commercial infrastructure power systems.
- OEM medium voltage switchgear assemblies.
- Transformer feeder protection.
