Why Choose the Mersen J078806 Medium Voltage Fuse?
The Mersen J078806 is a high performance medium voltage cylindrical fuse designed to provide reliable protection for switchgear, transformers and electrical distribution equipment operating on medium voltage networks. Also identified by the catalogue description 559P CP GLJB 36.250 50, it delivers dependable current-limiting protection for demanding industrial and utility applications.
Designed to rapidly interrupt fault currents, the J078806 helps minimise thermal and mechanical stress on cables, switchgear and connected equipment. Its proven current-limiting characteristics contribute to improved equipment protection, increased system reliability and reduced downtime following electrical faults.
With a rated voltage of 5.5 kV AC, a rated current of 50 A and a 36 × 250 mm cylindrical body, the Mersen J078806 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.
- 50 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 electrical distribution applications.
Key Features
- Manufacturer: Mersen.
- Model: J078806.
- 5.5 kV AC rated voltage.
- 50 A nominal current rating.
- 36 × 250 mm cylindrical fuse body.
- GLJB current-limiting fuse characteristic.
- Integrated striker mechanism.
- Suitable for medium voltage switchgear and transformer protection.
Reliable Protection for Medium Voltage Systems
Medium voltage fuses are engineered to interrupt excessive fault currents before they can damage transformers, switchgear and associated electrical infrastructure. Their current-limiting action helps minimise fault energy, improving equipment protection and reducing the effects of electrical faults.
The Mersen J078806 combines a 50 A current rating with a compact cylindrical design and integrated striker, making it suitable for replacement, maintenance and new installation projects where compatibility with the intended equipment has been confirmed.
Typical Applications
- Medium voltage switchgear.
- Distribution transformers.
- Industrial power distribution systems.
- Electrical infrastructure protection.
- Utility installations.
- Maintenance and replacement fuse applications.
