Why Choose the Mersen B1000271 High Voltage DIN Back-up Fuse?
The Mersen B1000271 is a premium Limitor®-PTD high voltage DIN back-up fuse-link with Controlled Power Dissipation (CPD), designed to provide dependable transformer protection in medium voltage electrical distribution systems. Manufactured in accordance with IEC 60282-1 and VDE 0670 T402, this fuse-link delivers reliable interruption of short-circuit currents while maintaining optimised thermal performance during normal operation.
Manufactured using pure silver fuse elements, silver-plated copper end caps and a robust ceramic body, the B1000271 provides exceptional electrical performance and long service life in demanding industrial environments. The integrated 80 N thermal striker enables dependable operation with compatible switchgear, whilst the Controlled Power Dissipation design helps reduce thermal stress on associated equipment.
With a 12 kV AC voltage rating, 80 A current rating and 65 mm diameter × 292 mm length construction, the Mersen B1000271 is ideally suited for protecting transformers installed within gas insulated and air insulated switchgear used throughout industrial plants, substations and utility distribution networks.
Key Advantages
- Designed specifically for medium voltage transformer protection.
- Controlled Power Dissipation (CPD) technology improves thermal performance.
- 12 kV AC rated voltage.
- 80 A rated current.
- Integrated 80 N thermal striker.
- Manufactured to IEC 60282-1 and VDE 0670 T402.
- Pure silver fuse elements ensure reliable performance.
- Recommended for compatible Siemens and Ormazabal switchgear.
Key Features
- Manufacturer: Mersen.
- Series: Limitor®-PTD.
- Part number: B1000271.
- Catalogue number: 45DB120V80PTD.
- Rated voltage: 12 kV AC.
- Rated current: 80 A.
- Fuse dimensions: 65 mm diameter × 292 mm length.
- Controlled Power Dissipation technology.
- Standard 80 N thermal striker.
- High strength ceramic body with silver-plated copper terminals.
The Limitor®-PTD series has been engineered to provide dependable transformer protection whilst maintaining controlled power dissipation during continuous service. This helps reduce operating temperatures and improve equipment longevity without compromising fault interruption capability.
Designed for use within modern gas insulated and air insulated switchgear, the B1000271 combines premium construction materials with proven Mersen engineering to deliver consistent performance throughout demanding industrial and utility applications.
Typical Applications
- Medium voltage transformers.
- Gas insulated switchgear (GIS).
- Air insulated switchgear.
- Industrial electrical distribution.
- Utility substations.
- OEM medium voltage equipment.
