ABB Soft starter

ABB Stotz S&J Softstarter PSTX45-690-70

Manufacturer: ABB Stotz S&J
Designation: Softstarter 37 kW 690 V
Type: PSTX45-690-70
Rated operational current at 40 °C ambient temperature: 45 A
Rated operational voltage: 208 to 690 V
Rated power three-phase motor, standard circuit, at 230 V: 12.5 kW
Rated power three-phase motor, standard circuit, at 400 V: 22 kW
Rated power three-phase motor, star-delta circuit, at 230 V: 25 kW
Rated power three-phase motor, star-delta circuit, at 400 V: 37 kW
Function: Reversing starter
Internal bypass: Yes
With display: Yes
Torque control: Yes
Rated ambient temperature without derating: 40 °C
Rated control supply voltage at AC 50 Hz: 100 to 250 V
Rated control supply voltage at AC 60 Hz: 100 to 250 V
Type of voltage for operation: AC
Integrated motor overload protection: Yes
Trip 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, such as when operating conveyors and cranes. A built-in bypass ensures energy efficiency by reducing heat generation during operation. The display and menu navigation are user-friendly.