Why Choose the Mersen H078805 Medium Voltage Fuse?
The Mersen H078805 is a high performance medium voltage cylindrical fuse designed to provide dependable protection for public lighting networks, switchgear and electrical distribution systems. Also identified by the commercial reference 36GJB55V40P, this current-limiting fuse helps protect valuable equipment against damaging short-circuit currents.
Engineered for demanding electrical infrastructure applications, the H078805 rapidly interrupts fault currents to reduce the thermal and mechanical stresses imposed on cables, switchgear and connected equipment. Its robust cylindrical construction supports reliable operation in medium voltage installations where consistent protection and continuity of service are essential.
With a rated voltage of 5.5 kV AC, a rated current of 40 A and a 36 × 250 mm cylindrical body, the Mersen H078805 is suitable for compatible medium voltage fuse holders and switchgear. Its integrated striker mechanism can provide mechanical indication or operate associated switching equipment when the fuse interrupts a fault.
Key Advantages
- Reliable medium voltage current-limiting fuse for electrical distribution systems.
- 5.5 kV AC rated voltage for compatible medium voltage installations.
- 40 A rated current for effective circuit protection.
- Integrated striker mechanism for indication or switchgear operation.
- Rapid fault interruption helps minimise thermal and mechanical equipment stress.
- Robust 36 × 250 mm cylindrical construction.
Key Features
- Mersen medium voltage fuse range.
- Manufacturer reference: H078805.
- Commercial reference: 36GJB55V40P.
- 5.5 kV AC nominal voltage rating.
- 40 A nominal current rating.
- 36 × 250 mm cylindrical fuse body.
- Current-limiting GLJB fuse characteristic.
- Integrated striker for compatible medium voltage switchgear.
Reliable Protection for Medium Voltage Networks
Medium voltage fuses interrupt excessive fault currents before they can cause serious damage to switchgear, cables and connected electrical equipment. Their current-limiting action restricts the peak current and energy passing through the circuit, helping to improve electrical safety and reduce the severity of short-circuit events.
The Mersen H078805 combines a 40 A rating with a compact cylindrical format and integrated striker. It is suitable for maintenance, replacement and new-build projects where compatibility with the installed fuse carrier, voltage rating and protection requirements has been confirmed.
Typical Applications
- Public lighting distribution networks.
- Medium voltage electrical switchgear.
- Industrial power distribution systems.
- Electrical infrastructure protection.
- Compatible IEC fuse holders and switching equipment.
- Maintenance and replacement fuse applications.
