Why Choose the Mersen J076805 Medium Voltage Fuse?
The Mersen J076805 is a compact medium voltage cylindrical fuse designed to protect potential transformers, voltage transformers and associated electrical equipment against damaging short-circuit currents. Also identified by the commercial reference FR20GG55C2, it provides precise current-limiting protection for compatible medium voltage installations.
Engineered for rapid fault interruption, the J076805 limits the peak current and electrical energy permitted to pass through the protected circuit during a fault. This helps reduce thermal and mechanical stress on transformers, conductors, switchgear and connected metering or protection equipment.
With a rated voltage of 5.5 kV AC, a rated current of 2 A and a compact 20 × 127 mm cylindrical body, the Mersen J076805 is suitable for compatible fuse holders and transformer protection assemblies. Its combination of medium voltage capability and low current rating makes it particularly suitable for instrument transformer and auxiliary circuit protection.
Key Advantages
- Specialised medium voltage current-limiting fuse.
- 5.5 kV AC rated voltage for compatible medium voltage systems.
- 2 A rated current for precise low-current protection.
- Current-limiting operation helps reduce damaging fault energy.
- Compact 20 × 127 mm cylindrical construction.
- Manufactured by Mersen for dependable circuit protection performance.
Key Features
- Mersen medium voltage fuse range.
- Manufacturer reference: J076805.
- Commercial reference: FR20GG55C2.
- 5.5 kV AC nominal voltage rating.
- 2 A nominal current rating.
- 20 × 127 mm cylindrical fuse body.
- GLG current-limiting fuse characteristic.
- Designed for specialised transformer and auxiliary circuit protection.
Potential and voltage transformers reduce medium voltage signals to safer levels for metering, monitoring and protective equipment. A correctly selected fuse helps protect the transformer and associated circuitry by disconnecting excessive fault currents before serious damage can occur.
The Mersen J076805 combines a low 2 A current rating with a 5.5 kV voltage rating, making it suitable for compatible transformer and auxiliary circuits. Its compact cylindrical construction supports installation within purpose-designed fuse holders and medium voltage equipment.
Typical Applications
- Medium voltage potential transformers.
- Voltage transformer protection circuits.
- Instrument transformer installations.
- Medium voltage metering equipment.
- Industrial switchgear and distribution systems.
- Maintenance and replacement fuse applications.
