Why Choose the Mersen G075584 High-Voltage Motor Protection Fuse?
The Mersen G075584, catalogue reference 45ASB36V430P-2, is a high-voltage DIN back-up fuse-link specifically designed for the protection of medium-voltage motors against damaging short-circuit currents. Part of the Mersen Limitor® aSJB/D series, it is engineered to withstand the repeated peak currents associated with motor starting whilst providing dependable fault interruption.
Rated at 3.6 kV AC and 430 A, the G075584 is suitable for demanding industrial motor control applications where reliable protection and high electrical endurance are essential. Manufactured using a melamine fibreglass insulating body, pure silver fuse elements and silver-plated brass end caps, it delivers long service life in harsh operating environments.
The fuse incorporates an integrated 20 N striker for operation indication and activation of compatible switchgear mechanisms. With a high 60 kA breaking capacity, it rapidly interrupts severe fault currents to minimise damage to motors, starters and associated switchgear.
Key Advantages
- High-voltage motor protection fuse for medium-voltage motors.
- 3.6 kV AC rated voltage.
- 430 A rated current.
- Designed to withstand repeated motor starting currents.
- 60 kA breaking capacity for reliable fault interruption.
- Integrated 20 N striker for indication and switchgear operation.
- Current-limiting design reduces thermal and mechanical fault stress.
- Robust melamine fibreglass body for demanding industrial applications.
Key Features
- Mersen Limitor® aSJB/D motor protection fuse series.
- Manufacturer item number G075584.
- Catalogue number 45ASB36V430P-2.
- 3.6 kV AC IEC rated voltage.
- 430 A rated current.
- 60 kA maximum breaking capacity.
- 3,300 A minimum breaking current.
- Total clearing I²t of 3,200 kA²s.
- Power dissipation of approximately 51 W at 0.7 In.
- Integrated 20 N striker.
- DIN clip-mounted construction.
- Coefficient K = 0.51 in accordance with IEC 60644.
Reliable Protection for Medium-Voltage Motors
The Mersen G075584 is specifically engineered to protect medium-voltage motors from damaging short-circuit faults whilst tolerating the repeated inrush currents generated during motor starting. Its current-limiting characteristics minimise the energy released during fault conditions, helping protect motors, contactors and switchgear.
The integrated striker provides clear fuse operation indication and can activate compatible switchgear tripping mechanisms, helping improve safety and minimise downtime in industrial motor control systems.
Typical Applications
- Medium-voltage motor protection.
- Industrial motor control centres.
- Pumps and compressors.
- Mining and processing plants.
- Water and wastewater facilities.
- Power generation systems.
- Air-insulated switchgear.
- Industrial manufacturing plants.
