Softstart PSTX72-600-70 1SFA898107R7000

Softstarter – smooth start, protection and motor efficiency

This softstarter is an advanced solution for controlling the start of three-phase motors, designed for both the needs of professional installers and reliable operation in industry. The device effectively limits inrush currents, reducing the load on the power supply network and extending the life of connected motors. Built-in protections protect the motor against overloads and short circuits, ensuring safe and stable operation.

Construction and functionality

The PSTX72-600-70 softstarter is distinguished by its solid construction and a rich set of functions. The built-in contactor (bypass) minimizes energy losses during motor operation in steady state. The removable control panel with a graphic display makes configuration and monitoring of operating parameters easier. A coating on the printed circuit boards protects the device against the influence of aggressive chemical environments, making it an ideal solution for harsh industrial conditions. Adjustable torque control allows for optimal adjustment of start-up parameters to the specifics of a given device.

Applications and benefits

The device works perfectly in a wide range of industrial applications, such as pumps, fans, conveyor belts, compressors or mixers. Automatic detection of motor connection configuration (star/delta) simplifies installation and configuration. The built-in Modbus RTU interface enables easy integration with automation and monitoring systems. This allows for remote control and reading of softstarter operating data. Using this device translates to:

• Reduced operating costs: by limiting inrush currents and reducing energy consumption.
• Extended motor life: thanks to smooth start-up and protection against overloads.
• Increased installation reliability: thanks to built-in protections and solid construction.
• Simplified installation and configuration process: thanks to automatic detection of motor connections and an intuitive control panel with a graphic display.
• Flexibility: possibility of use in various industrial applications thanks to a wide range of operating voltages (208...600 V) and rated currents (up to 72A).

Operating parameters

The PSTX72-600-70 softstarter is designed to operate in an ambient temperature of up to 40°C, and its release class is adjustable, allowing for precise adjustment to the load characteristics. The device meets safety standards and has a protection class of IP00 and NEMA 1, ensuring safe operation in industrial conditions. The rated power of a three-phase motor with a standard connection is 37 kW at 400 V and 18.5 kW at 230 V, while with a star (delta) connection, it is 59 kW (37 kW) at 400 V, respectively.