Why Choose the Mersen N078166 High Voltage Motor Protection Fuse?
The Mersen N078166 is a premium high voltage back-up fuse engineered to provide reliable short-circuit protection for medium voltage motors and associated switchgear. Part of the trusted Mersen Limitor® aSJB/D fuse series, it is specifically designed for demanding industrial applications where dependable fault interruption and long-term reliability are essential.
Designed for motor protection, the N078166 withstands the high inrush currents associated with motor starting while delivering rapid fault clearance during short-circuit conditions. Its silver-plated conductive components, reinforced melamine fibreglass body and integrated 20 N striker mechanism provide dependable performance and seamless integration with switchgear protection systems.
With a 7.2 kV AC IEC voltage rating and a 100 A current rating, the Mersen N078166 is ideally suited for protecting medium voltage motors, substations, industrial switchgear and power distribution equipment where maximum operational safety is required.
Key Advantages
- Designed specifically for medium voltage motor protection.
- 7.2 kV AC IEC rated voltage.
- 100 A current rating for demanding industrial applications.
- Integrated 20 N striker for switchgear operation.
- High breaking capacity for dependable fault interruption.
- Premium silver-plated conductive components.
- Robust melamine fibreglass construction.
- Manufactured in accordance with IEC high voltage fuse standards.
Key Features
- Mersen Limitor® aSJB/D high voltage back-up fuse.
- Catalogue number: 45ASB72V100P-2.
- Rated voltage: 7.2 kV AC.
- Rated current: 100 A.
- Fuse dimensions: Ø50.8 mm × 292 mm.
- Integrated 20 N striker mechanism.
- Designed for medium voltage motor protection.
- Suitable for industrial switchgear installations.
Reliable High Voltage Motor Protection
Medium voltage back-up fuses are designed to protect motors and associated equipment from damaging short-circuit faults while tolerating the repeated peak currents generated during motor starting. Rapid interruption of fault currents helps minimise equipment damage and reduce downtime in industrial electrical installations.
Mersen Limitor® high voltage fuse-links have been trusted worldwide for decades in switchgear, substations and industrial power systems, providing dependable protection for critical electrical infrastructure.
Typical Applications
- Medium voltage motor protection.
- Industrial switchgear.
- Motor control centres.
- Power distribution systems.
- Electrical substations.
- OEM medium voltage equipment.
- Mining and heavy industry.
- Process manufacturing facilities.
