ABB Stotz S&J Softstarter PSTX37-600-70

Manufacturer: ABB Stotz S&J
Designation: Softstarter 18.5 kW 400 V
Type: PSTX37-600-70
Rated operational current Ie at 40 °C: 37 A
Rated operational voltage Ue: 208..600 V
Rated power for three-phase motor, standard circuit, at 230 V: 9 kW
Rated power for three-phase motor, standard circuit, at 400 V: 18.5 kW
Rated power for three-phase motor, star-delta circuit, at 230 V: 15 kW
Rated power for three-phase motor, star-delta circuit, at 400 V: 30 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, earth fault, over- and undervoltage protection, and other functions. Various start, stop, and torque setting options allow for precise adjustments to the specific application. For example, pump cleaning can alternately reverse the pump flow, freeing the pump impeller from contamination. The slow jog operation forwards and backwards increases flexibility, for instance, 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.