Why Choose the Mersen T1000287 High Voltage DIN Back-up Fuse?
The Mersen T1000287 is a high performance Limitor®-PTD high voltage DIN back-up fuse designed to provide dependable short-circuit protection for medium voltage transformers operating within demanding electrical distribution systems. Identified by catalogue number 45DB360V10PTD, it incorporates controlled power dissipation technology together with an integrated thermal striker for enhanced switchgear performance and reliability.
Manufactured in accordance with IEC 60282-1, the fuse uses a ceramic body, pure silver fuse elements and silver-plated copper terminals to deliver excellent current-limiting performance and long service life. Controlled power dissipation helps minimise heat build-up inside enclosed switchgear whilst maintaining dependable transformer protection.
Rated at 36 kV AC with a 10 A current rating, the T1000287 features a 56 mm diameter, a 537 mm overall length and an integrated 80 N thermal striker. It is ideally suited for medium voltage substations, industrial switchgear and utility transformer protection systems.
Key Advantages
- Designed specifically for medium voltage transformer protection.
- 36 kV AC rated voltage.
- 10 A rated current.
- Controlled power dissipation helps reduce switchgear temperatures.
- 31.5 kA breaking capacity for dependable fault interruption.
- Integrated 80 N thermal striker for coordinated switchgear operation.
Key Features
- Mersen Limitor®-PTD series.
- High voltage DIN back-up fuse.
- 36 kV AC IEC rated voltage.
- 10 A rated current.
- 56 mm diameter × 537 mm fuse size.
- 31.5 kA maximum AC breaking capacity.
- Controlled power dissipation technology.
- Integrated 80 N thermal striker.
- Ceramic body with pure silver fuse elements.
- Clip-mounted DIN construction.
High voltage back-up fuses rapidly interrupt damaging short-circuit currents before excessive thermal and mechanical forces can affect transformers, switchgear and associated electrical equipment. Their current-limiting characteristics improve equipment protection whilst reducing downtime and maintenance costs.
The Mersen T1000287 combines dependable fault interruption with controlled power dissipation technology and a thermal striker, making it particularly suitable for enclosed medium voltage switchgear where minimising internal temperatures is essential for long-term reliability.
Typical Applications
- Medium voltage transformer protection.
- Gas-insulated switchgear (GIS).
- Air-insulated switchgear (AIS).
- Distribution substations.
- Industrial power distribution systems.
- Utility electrical networks.
