Softstart PSTX85-600-70 1SFA898108R7000

Advanced motor starter with Softstart PSTX85-600-70

The PSTX85-600-70 Softstart is an advanced device for smooth starting of three-phase motors, designed for both industrial and demanding commercial installations. It optimizes the starting process, reduces mechanical and electrical stress, and increases motor life. The device is characterized by a wide range of operating voltages (208…600 V AC) and a rated current of 85A, making it a universal solution for various applications.

Functionality and Application

PSTX85-600-70 offers comprehensive control over the motor starting process, including torque control, which allows you to adjust the starting characteristics to specific load requirements. The built-in contactor (bypass) minimizes energy losses after the start-up is complete, and also simplifies the installation design. The integrated motor overload protection protects it from damage caused by excessive load. The device automatically detects the motor connection configuration – line or internal star – eliminating the need for manual configuration. Equipped with a graphic display, it facilitates configuration and monitoring of operating parameters.

Key Advantages and Design Features

• Versatility: Wide range of operating voltages (208…600 V AC) and rated current of 85A allow for use in various installations.
• Motor Protection: Built-in overload protection and smooth start minimize mechanical and electrical loads, extending motor life.
• Energy Efficiency: Integrated bypass contactor reduces energy losses after start-up is complete.
• Easy Configuration: Graphic display with intuitive menu enables quick and precise setting of operating parameters.
• Communication: Built-in Modbus RTU interface enables integration with automation systems and remote monitoring of device operation.
• Durability: Coated printed circuit boards provide resistance to aggressive chemical environments, which is particularly important in harsh industrial conditions.
• Mobility: Detachable control panel with IP66 protection class facilitates servicing and configuration in various conditions.
• Torque control: Allows precise adjustment of the starting characteristics to the specifics of the load, minimizing current and mechanical shocks of the drive.

Operating parameters

The device operates in an ambient temperature of up to 40°C and has a protection class of IP00 (NEMA 1), which ensures its reliability in standard industrial conditions. The tripping class is adjustable, allowing you to adapt the device's sensitivity to specific application needs. The rated power of a three-phase motor with standard connection is 45 kW at 400 V and 22 kW at 230 V, while with internal star connection, it is 75 kW at 400 V and 40 kW at 230 V. The control voltage can range from 100 to 250 V AC (50/60 Hz).