Why Choose the Mersen Q085620 High Voltage Motor Protection Fuse?
The Mersen Q085620 is a premium high voltage motor protection back-up fuse-link engineered to protect medium voltage motors, switchgear and associated equipment against high short-circuit currents. As part of the proven Mersen Limitor® aSJB/D series, it is specifically designed for demanding motor applications where repeated starting currents and dependable fault interruption are essential.
Constructed using silver-plated copper fuse elements, silver-plated brass end caps and a durable melamine fibreglass body, the fuse provides excellent electrical performance, long service life and reliable operation in industrial environments. Its integrated 20 N striker enables mechanical fault indication and operation of compatible switchgear mechanisms.
With a rated voltage of 7.2 kV AC, a rated current of 200 A and a 76 mm × 442 mm body size, the Q085620 is ideal for medium voltage motor circuits requiring high fault-clearing capability and dependable protection.
Key Advantages
- Purpose-designed for medium voltage motor protection.
- 7.2 kV AC IEC rated voltage.
- 200 A current rating.
- High current-limiting capability for reduced fault energy.
- Integrated 20 N striker for switchgear operation.
- Designed to withstand repeated motor starting currents.
- Premium silver-plated conductive components.
- Complies with recognised IEC high voltage fuse standards.
Key Features
- Mersen Limitor® aSJB/D motor protection fuse-link.
- Catalogue number: 45ASD72V200P-3.
- Rated voltage: 7.2 kV AC.
- Rated current: 200 A.
- Fuse body size: 76 mm diameter × 442 mm length.
- Integrated 20 N striker.
- Silver-plated copper fuse elements.
- Silver-plated brass terminals.
- Melamine fibreglass insulating body.
- Current-limiting back-up fuse design.
Reliable Protection for Medium Voltage Motors
The Mersen Q085620 rapidly interrupts high short-circuit currents while tolerating the repeated inrush currents generated during motor starting. Its current-limiting design helps minimise thermal and mechanical stress on motors, cables and switchgear, improving equipment reliability and reducing downtime.
The Limitor® aSJB/D range has been developed specifically for medium voltage motor protection where high reliability, consistent performance and long operational life are essential.
Typical Applications
- Medium voltage electric motors.
- Motor control centres.
- Industrial processing plants.
- Mining operations.
- Water treatment facilities.
- Power generation installations.
- HV switchgear assemblies.
- OEM motor starter equipment.
