ABB Soft starter

ABB Stotz S&J Softstarter PSTX105-600-70

Manufacturer: ABB Stotz S&J
Designation: Softstarter 55 kW 400 V
Type: PSTX105-600-70
Rated operational current Ie at 40 °C ambient temperature: 105 A
Rated operational voltage Ue: 208..600 V
Rated power of three-phase motor, standard connection, at 230 V: 30 kW
Rated power of three-phase motor, standard connection, at 400 V: 55 kW
Rated power of three-phase motor, star-delta connection, at 230 V: 55 kW
Rated power of three-phase motor, star-delta connection, at 400 V: 90 kW
Function: Reversing starter
Internal bypass: yes
With display: yes
Torque control: yes
Rated ambient temperature without derating: 40 °C
Rated control supply voltage Us at AC 50 Hz: 100..250 V
Rated control supply voltage Us at AC 60 Hz: 100..250 V
Type of voltage for operation: AC
Integrated motor overload protection: yes
Tripping class: adjustable
Protection class (IP): IP00
Protection class (NEMA): 1

The PSTX softstarters provide complete motor protection in a single device and operate effectively even under load or network irregularities. Motor protection is ensured through PT-100, residual current, over- and undervoltage protection, and additional functions. Various start, stop, and torque adjustment options allow for precise adaptations to the specific application. For example, pump cleaning can alternately reverse the pump flow, freeing the pump impeller from contamination. The slow forward and reverse jog operation increases flexibility, such as when operating conveyors and cranes. An integrated bypass ensures energy efficiency by reducing heat generation during operation. The display and menu navigation are user-friendly.