Why Choose the Mersen Y076473 High-Voltage Motor Fuse?
The Mersen Y076473, catalogue reference 45ASB36V125P-1, is a high-voltage back-up fuse-link specifically designed to protect industrial motors against damaging short-circuit currents. As part of the dependable Mersen Limitor® aSJB/D series, it is engineered for use in high-voltage switchgear, motor control equipment and demanding industrial power systems.
Rated at 3.6 kV AC and 125 A, the Y076473 provides effective current-limiting protection while accommodating the repeated peak currents associated with motor starting. Its specialised operating characteristics help prevent nuisance fuse operation during normal acceleration while ensuring rapid interruption when a serious electrical fault occurs.
The fuse-link has a compact cylindrical format measuring 50.8 mm in diameter and 192 mm in length. It also incorporates a 20 N striker that can operate compatible switchgear mechanisms or provide a clear indication after the fuse has operated.
Key Advantages
- Specially designed for high-voltage motor protection.
- 3.6 kV AC voltage rating for industrial power systems.
- 125 A rated current for suitable high-voltage motor circuits.
- Supports repeated peak currents generated during motor starting.
- Current-limiting operation helps reduce thermal and mechanical fault stresses.
- Integrated 20 N striker for switchgear operation or indication.
Key Features
- Mersen Limitor® aSJB/D high-voltage back-up fuse-link.
- Catalogue number: 45ASB36V125P-1.
- Rated voltage: 3.6 kV AC.
- Rated current: 125 A.
- Fuse dimensions: 50.8 mm diameter × 192 mm length.
- Striker force: 20 N.
- Designed to withstand repeated motor-starting current peaks.
- Current-limiting back-up protection for high fault currents.
- Suitable for compatible high-voltage switchgear and motor control systems.
Reliable Protection for High-Voltage Motors
High-voltage motors can draw substantial temporary currents while starting. The Mersen Y076473 is designed to tolerate these repeated starting peaks without unnecessary operation while still providing rapid protection against severe short-circuit faults.
As a back-up fuse-link, the Y076473 is intended to interrupt fault currents above its specified minimum breaking-current level. It should therefore be correctly coordinated with a suitable contactor, circuit-breaker, overload relay or other protection device to provide comprehensive motor protection across the required current range.
Typical Applications
- High-voltage industrial motor protection.
- Motor control centres and starter panels.
- Pumps, compressors and ventilation systems.
- Conveyors, crushers and material handling equipment.
- High-voltage switchgear and controlgear.
- Industrial processing and manufacturing machinery.
