Why Choose the Mersen B1000570 High Voltage DIN Back-up Fuse?
The Mersen B1000570 is a premium Limitor®-P high voltage DIN back-up fuse-link engineered to provide dependable transformer protection within medium voltage electrical distribution systems. Manufactured in accordance with IEC 60282-1, this fuse-link rapidly interrupts high fault currents while delivering reliable long-term performance in demanding industrial and utility applications.
Constructed using pure silver fuse elements, silver-plated copper end caps and a durable ceramic body, the B1000570 offers outstanding electrical performance, excellent thermal characteristics and high mechanical strength. Its integrated 80 N striker provides reliable mechanical tripping and compatibility with modern switchgear and protection systems.
With a 17.5 kV AC voltage rating, 40 A current rating and 56 mm diameter × 367 mm length construction, the Mersen B1000570 is ideally suited for protecting transformers, switchgear and medium voltage equipment where dependable short-circuit protection is essential.
Key Advantages
- Designed specifically for medium voltage transformer protection.
- Manufactured in accordance with IEC 60282-1.
- 17.5 kV AC rated voltage.
- 40 A current rating.
- Integrated 80 N striker for compatible switchgear.
- High breaking capacity of 63 kA.
- Pure silver fuse elements provide dependable electrical performance.
- Robust ceramic construction for demanding industrial environments.
Key Features
- Manufacturer: Mersen.
- Series: Limitor®-P.
- Part number: B1000570.
- Catalogue number: 45DB175V40P.
- Rated voltage: 17.5 kV AC.
- Rated current: 40 A.
- Fuse dimensions: 56 mm diameter × 367 mm length.
- Back-up fuse for transformer protection.
- Standard 80 N striker.
- High strength ceramic body with silver-plated copper terminals.
The Limitor®-P series is designed to protect transformers against damaging short-circuit currents while providing excellent current limiting performance. Premium construction materials and precise manufacturing ensure dependable operation, helping improve system reliability and minimise equipment damage in demanding electrical distribution networks.
The B1000570 is suitable for installation in substations, industrial switchgear, renewable energy systems and OEM medium voltage equipment where reliable transformer protection is critical.
Typical Applications
- Medium voltage transformers.
- Industrial switchgear.
- Utility substations.
- Electrical distribution networks.
- Renewable energy installations.
- OEM medium voltage equipment.
