Why Choose the Mersen D1000135 High Voltage Transformer Fuse?
The Mersen D1000135 is a high performance DIN high voltage back-up fuse designed to protect medium voltage transformers against damaging short-circuit currents. Part of the advanced Mersen Limitor® PT range, it combines dependable fault interruption with controlled power dissipation for use in high voltage switchgear and electrical distribution systems.
This fuse-link is manufactured using pure silver fuse elements, silver-coated copper end caps and a robust ceramic body. These high quality materials provide consistent electrical performance, strong insulation and reliable operation in demanding utility, industrial and infrastructure applications.
With a rated voltage of 12 kV AC, a rated current of 200 A and a standard 80 N striker, the D1000135 is suitable for transformer protection within compatible medium voltage switchgear. Its controlled power dissipation design helps limit heat generation and supports dependable performance within enclosed switchgear assemblies.
Key Advantages
- Designed specifically for medium voltage transformer protection.
- 12 kV AC rated voltage for high voltage distribution systems.
- 200 A rated current.
- Controlled power dissipation helps reduce thermal stress within switchgear.
- Integrated 80 N striker for compatible switching mechanisms.
- Pure silver fuse elements provide dependable electrical performance.
- Robust ceramic body delivers excellent mechanical and insulating strength.
- Back-up fuse construction in accordance with IEC 60282-1.
Key Features
- Mersen Limitor® PT high voltage fuse range.
- 12 kV AC rated voltage.
- 200 A rated current.
- VDE T4 DIN fuse format.
- 88 mm diameter and 292 mm length.
- Integrated 80 N striker.
- Controlled power dissipation construction.
- Pure silver fuse elements.
- Silver-coated copper end caps.
- Durable ceramic fuse body.
High voltage back-up fuses such as the Mersen D1000135 are designed to interrupt high short-circuit currents before they can cause severe thermal or mechanical damage to transformers and associated electrical equipment. They are typically coordinated with suitable switching and overload protection devices to provide comprehensive transformer protection.
The Limitor® PT range incorporates controlled power dissipation technology to help manage heat within compact switchgear installations. This makes the D1000135 a dependable choice for electrical systems where reliable protection, compact dimensions and thermal performance are important.
Typical Applications
- Medium voltage transformer protection.
- High voltage switchgear and controlgear.
- Utility substations and distribution networks.
- Industrial electrical distribution systems.
- Renewable energy substations.
- Commercial infrastructure power systems.
- OEM medium voltage switchgear assemblies.
- Transformer feeder protection.
