Why Choose the Mersen B209347 High Voltage DIN Back-up Fuse?
The Mersen B209347 is a premium Limitor®-P high voltage DIN back-up fuse-link engineered to provide dependable protection for transformers and medium voltage electrical distribution systems. Designed in accordance with IEC 60282-1, this fuse-link rapidly interrupts high fault currents, helping protect transformers and associated switchgear whilst ensuring reliable long-term operation.
Manufactured using pure silver fuse elements, silver-plated copper end caps and a durable ceramic body, the B209347 delivers excellent current limiting performance, high breaking capacity and outstanding mechanical strength. Its integrated 80 N striker enables dependable operation with compatible switchgear and protection systems.
With a 24 kV AC voltage rating, 63 A current rating and 56 mm diameter × 442 mm length construction, the Mersen B209347 is ideally suited for transformer protection in substations, industrial facilities and utility power distribution networks.
Key Advantages
- Designed specifically for medium voltage transformer protection.
- Manufactured in accordance with IEC 60282-1.
- 24 kV AC rated voltage.
- 63 A current rating.
- 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: B209347.
- Catalogue number: 45DB240V63P.
- Rated voltage: 24 kV AC.
- Rated current: 63 A.
- Fuse dimensions: 56 mm diameter × 442 mm length.
- DIN high voltage back-up fuse for transformer protection.
- Standard 80 N striker.
- High strength 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. Premium materials and precision manufacturing ensure dependable operation, helping improve network reliability and minimise equipment damage in demanding industrial and utility applications.
The B209347 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.
