Why Choose the Mersen B209301 High Voltage DIN Back-up Fuse?
The Mersen B209301 is a premium Limitor®-P high voltage DIN back-up fuse-link engineered to provide dependable transformer protection in medium voltage electrical distribution systems. Designed in accordance with IEC 60282-1, this fuse rapidly interrupts high fault currents, helping to safeguard transformers and associated switchgear whilst ensuring long-term operational reliability.
Manufactured using pure silver fuse elements, silver-plated copper end caps and a durable ceramic body, the B209301 delivers outstanding electrical performance, excellent current limiting characteristics and high mechanical strength. Its integrated 80 N striker provides reliable operation with compatible protection systems and medium voltage switchgear.
With a 7.2 kV AC voltage rating, 63 A current rating and 65 mm diameter × 192 mm length construction, the Mersen B209301 is ideally suited for protecting distribution transformers, substations and industrial medium voltage installations where dependable short-circuit protection is essential.
Key Advantages
- Designed specifically for medium voltage transformer protection.
- Manufactured in accordance with IEC 60282-1.
- 7.2 kV AC rated voltage.
- 63 A rated current.
- Integrated 80 N striker for compatible switchgear.
- 63 kA breaking capacity.
- Pure silver fuse elements provide dependable electrical performance.
- Robust ceramic construction for demanding industrial environments.
Key Features
- Manufacturer: Mersen.
- Series: Limitor®-P.
- Part number: B209301.
- Catalogue number: 45DB72V63P.
- Rated voltage: 7.2 kV AC.
- Rated current: 63 A.
- Fuse dimensions: 65 mm diameter × 192 mm length.
- DIN high voltage back-up fuse for transformer protection.
- Standard 80 N striker.
- High quality ceramic body with silver-plated copper terminals.
The Limitor®-P range has been developed to protect transformers against damaging short-circuit currents whilst delivering excellent current limiting performance. Precision manufacturing and premium materials ensure dependable operation, helping improve network reliability and reduce equipment damage in demanding industrial and utility applications.
The B209301 is suitable for installation within substations, industrial switchgear, renewable energy installations and OEM medium voltage equipment where dependable transformer protection is critical.
Typical Applications
- Medium voltage transformers.
- Industrial switchgear.
- Electrical substations.
- Utility distribution networks.
- Renewable energy installations.
- OEM medium voltage equipment.
