Why Choose the Mersen K078807 Medium Voltage Fuse?
The Mersen K078807 is a high performance medium voltage cylindrical fuse designed to provide dependable protection for public lighting networks, transformers and electrical distribution equipment. Also identified by the commercial reference 36AJB55V63P, this current-limiting fuse delivers reliable fault interruption for demanding industrial and utility applications.
Engineered to rapidly interrupt excessive fault currents, the K078807 helps minimise thermal and mechanical stress on cables, switchgear and associated electrical equipment. Its advanced current-limiting characteristics contribute to improved equipment protection, enhanced system reliability and reduced downtime following electrical faults.
With a rated voltage of 5.5 kV AC, a rated current of 63 A and a 36 × 250 mm cylindrical body, the Mersen K078807 is suitable for compatible medium voltage fuse holders and switchgear. An integrated striker mechanism provides mechanical indication or operation of associated switching equipment when the fuse clears a fault.
Key Advantages
- High performance medium voltage current-limiting fuse.
- 5.5 kV AC rated voltage for compatible medium voltage systems.
- 63 A rated current for dependable circuit protection.
- Integrated striker mechanism for compatible switchgear.
- Rapid fault interruption helps reduce equipment damage.
- Designed for industrial, utility and public lighting applications.
Key Features
- Manufacturer: Mersen.
- Model: K078807.
- Commercial reference: 36AJB55V63P.
- 5.5 kV AC rated voltage.
- 63 A nominal current rating.
- 36 × 250 mm cylindrical fuse body.
- ALJB current-limiting fuse characteristic.
- Integrated striker mechanism.
Reliable Protection for Medium Voltage Systems
Medium voltage fuses are designed to interrupt excessive fault currents before they can damage transformers, switchgear and associated electrical infrastructure. Their current-limiting action reduces both peak fault current and let-through energy, improving equipment protection and operational reliability.
The Mersen K078807 combines a 63 A current rating with a compact cylindrical design and integrated striker, making it suitable for maintenance, replacement and new installation projects where compatibility with the intended equipment has been confirmed.
Typical Applications
- Medium voltage switchgear.
- Public lighting distribution networks.
- Industrial power distribution systems.
- Transformer protection.
- Utility electrical infrastructure.
- Maintenance and replacement fuse applications.
