Softstart PSTX60-600-70 1SFA898106R7000

Softstarter – Smooth start and motor protection

This is an advanced softstarter from the PSTX series, designed for the smooth start of three-phase motors. The device not only limits inrush currents, reducing the load on the power supply network, but also provides comprehensive protection for the motor against overloads and short circuits. This extends the motor's lifespan and increases the reliability of the entire system. The device's construction has been designed with demanding operating conditions in mind, and coated printed circuit boards guarantee resistance to aggressive chemical environments.

Functionality and application

The PSTX60-600-70 softstarter offers a wide range of adjustment possibilities and adaptation to specific application needs. It allows control of the motor torque, which is particularly important in applications such as pumps, fans or conveyors. The built-in bypass contactor ensures continuous operation after the start-up phase is completed, minimizing power losses. The device automatically detects the motor connection method – star or delta – which simplifies installation and configuration. A removable control panel with a graphic display enables convenient monitoring of operating parameters and device configuration.

Advantages and benefits

• Versatility: Designed for motors with a supply voltage from 208 to 600 V AC and a rated current of up to 60 A.
• Motor protection: Built-in motor overload protection protects it from damage caused by excessive load.
• Smooth start: Limits inrush currents, reducing the load on the power supply network and extending the motor's lifespan.
• Torque control: Allows precise adjustment of the start-up characteristics to the requirements of the application.
• Communication: The built-in Modbus RTU interface enables integration with automation systems and remote monitoring of operating parameters.
• Resistance to external conditions: Coated printed circuit boards provide resistance to corrosion and the action of aggressive chemicals.
• Convenient operation: A removable control panel with a graphic display simplifies configuration and monitoring of the device's operating parameters. The display supports 17 languages.
• Flexible mounting: Possibility of mounting on a DIN rail or with screws on a mounting plate.

Technical parameters in practice

The rated operating current of the device is 60 A at an ambient temperature of 40°C, making it suitable for use in demanding industrial conditions. Torque control allows for optimization of the start-up process for different types of loads – from light (fans) to heavy (centrifugal pumps, compressors). The built-in bypass contactor ensures continuous operation after the start-up phase is completed, eliminating additional energy losses. The device is adapted to cooperate with both motors connected in a star and in a delta, which increases its versatility. The tripping class is adjustable, allowing precise adjustment of the protection parameters to the specifics of the application.