ADXT0139 Lovato SOFT STARTER 139A 380-690V, AUX 110/240V

Why Choose the Lovato ADXT0139 Soft Starter?

The Lovato ADXT0139 is an advanced three-phase soft starter designed for controlled starting and stopping of asynchronous motors in standard and heavy-duty industrial applications. As part of the Lovato ADXT soft starter series, it provides three-phase motor control with integrated motor and starter protection, helping reduce mechanical stress, electrical starting currents and disruption to industrial power systems.

The ADXT0139 features a built-in bypass that bypasses the power semiconductors after the motor reaches operating speed, reducing heat generation and power losses during continuous operation. It supports both conventional in-line and inside-delta motor connections, providing flexibility for machine builders, panel manufacturers and industrial automation engineers.

With a rated starter current of 139 A and a three-phase 380–690 V AC operational voltage, the ADXT0139 is suitable for substantial industrial motors and demanding loads. It supports motors up to 75 kW at 400 V in an in-line configuration and up to 110 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.
• 139 A rated starter current for high-power industrial motors.
• 380–690 V AC operational voltage supports a wide range of industrial supply systems.
• Integrated bypass reduces heat generation and power dissipation after starting.
• Supports both in-line and inside-delta motor connections.
• Integrated motor overload protection helps protect motors during demanding operating conditions.
• Controlled acceleration and deceleration help reduce mechanical stress on motors, couplings and driven equipment.

Key Features

• Lovato ADXT advanced soft starter series.
• 139 A rated operational current.
• Three-phase 380–690 V AC operational voltage.
• 110–120 V AC / 220–240 V AC auxiliary supply.
• Three controlled phases for advanced motor starting.
• Built-in bypass for efficient continuous operation.
• 75 kW in-line motor rating at 400 V.
• 110 kW inside-delta motor rating at 400 V.
• Integrated motor overload protection.
• Display for configuration and operating information.
• Forced cooling system for thermal management.
• Designed for both standard and demanding heavy-duty loads.

Controlled Starting for Demanding Industrial Motors

Soft starters regulate the voltage applied to an AC motor during acceleration and deceleration, providing a controlled alternative to direct-on-line starting. By limiting the electrical and mechanical stresses associated with motor starting, the Lovato ADXT0139 can help reduce voltage disturbances, mechanical shock and wear on components such as couplings, belts, gearboxes and driven machinery.

The ADXT series is particularly suited to demanding loads where reliable starting performance is essential, including crushers, fans, conveyors, compressors, centrifuges and mills. Once starting is complete, the ADXT0139's built-in bypass carries the motor current without continuously passing it through the power semiconductors, reducing operating losses and heat generation.

Typical Applications

• Industrial pumps and pumping systems.
• Fans, blowers and ventilation equipment.
• Vertical, inclined and horizontal conveyor systems.
• Crushers and shredding machinery.
• Screw compressors and industrial compressors.
• Centrifuges and processing equipment.
• Mills and heavy production machinery.
• Band and circular saw machinery.
• High-inertia industrial loads and heavy-duty machine applications.