ABB Stotz S&J Softstarter PSTX105-690-70

Manufacturer: ABB Stotz S&J
Designation: Softstarter 90 kW 690 V
Type: PSTX105-690-70
Rated operational current Ie at 40 °C ambient temperature: 105 A
Rated operational voltage Ue: 208..690 V
Rated power for three-phase motor, standard circuit, at 230 V: 30 kW
Rated power for three-phase motor, standard circuit, at 400 V: 55 kW
Rated power for three-phase motor, star-delta circuit, at 230 V: 55 kW
Rated power for three-phase motor, star-delta circuit, 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 specific applications. For example, pump cleaning can alternately reverse the pump flow to free the pump impeller from contamination. The slow jog operation forward and backward increases flexibility, for instance, when operating conveyor belts and cranes. An integrated bypass ensures energy efficiency by reducing heat generation during operation. The display and menu navigation are user-friendly.