ADXT0554 Lovato SOFT STARTER 554A 380-690V, AUX 110/240V

Why Choose the Lovato ADXT0554 Soft Starter?

The Lovato ADXT0554 is an advanced three-phase soft starter designed for controlled starting and stopping of large asynchronous motors in standard and heavy-duty industrial applications. As part of the Lovato ADXT soft starter series, it combines three-phase motor control, integrated protection and flexible starting and stopping functions to help reduce starting current and mechanical stress on motors and driven equipment.

The ADXT0554 features a built-in bypass that reduces power losses and heat generation once the motor reaches normal operating speed. It supports both conventional in-line and inside-delta motor connections and provides constant-current, current-ramp, voltage-ramp and adaptive-control starting modes, giving engineers flexibility when commissioning demanding motor-driven machinery.

With a rated starter current of 554 A and a three-phase 380–690 V AC operational voltage, the ADXT0554 is engineered for high-power industrial motors. It supports motors up to 315 kW at 400 V in an in-line configuration and up to 450 kW at 400 V with an inside-delta connection, while its auxiliary supply accepts 110–120 V AC or 220–240 V AC.

Key Advantages

• Advanced three-phase soft starter for standard and heavy-duty applications.
• 554 A rated starter current for large industrial motors.
• Three-phase 380–690 V AC operational voltage for high-power industrial systems.
• 110–120 V AC / 220–240 V AC auxiliary supply for flexible control-system integration.
• Integrated bypass reduces power dissipation and heat generation during normal running.
• Supports both in-line and inside-delta motor connections.
• Multiple starting and stopping modes provide flexible control for demanding machinery and high-inertia loads.

Key Features

• Lovato ADXT advanced soft starter series.
• 554 A rated starter current.
• Three-phase 380–690 V AC rated operational voltage.
• 110–120 V AC / 220–240 V AC auxiliary supply.
• Three controlled phases for advanced motor starting and stopping.
• Built-in bypass for efficient continuous operation.
• 315 kW in-line motor rating at 400 V.
• 450 kW inside-delta motor rating at 400 V.
• Constant-current, current-ramp, voltage-ramp and adaptive-control starting modes.
• Voltage-ramp, adaptive-control, free-wheel, DC braking and soft-stop functions.
• Graphic LCD display for configuration and monitoring.
• Forced cooling for effective thermal management in high-power applications.

Controlled Starting for High-Power Industrial Motors

Soft starters progressively control the electrical power supplied to an AC motor during acceleration, helping limit starting current and reduce the mechanical shock associated with direct-on-line starting. For large industrial motors, this can help reduce stress on electrical supplies and mechanical components such as couplings, belts, gearboxes, bearings and driven machinery.

The Lovato ADXT0554 provides three-phase control and multiple starting and stopping algorithms for demanding applications. Once acceleration is complete, the built-in bypass carries the running current efficiently, while support for in-line and inside-delta connections gives system designers considerable flexibility when engineering high-power motor-control installations.

Typical Applications

• Large industrial pumps and pumping stations.
• High-power fans, blowers and ventilation systems.
• Heavy conveyor and material handling systems.
• Crushers and shredding machinery.
• Large industrial compressors.
• Centrifuges and processing equipment.
• Mills and heavy production machinery.
• High-inertia industrial loads.
• Large automated machinery and process installations.