PSTX soft starters from ABB offer complete motor protection in one device and work even when there are load or mains irregularities. PT-100, residual current, overvoltage and undervoltage protection, together with many other functions, make your motor safer than ever before. PSTX offers three types of current limitation: standard, dual and ramp. This gives you full control over your motor when starting. When the full ramp voltage is reached, PSTX activates its built-in bypass. This saves energy and reduces the heat generated by the soft starter. A user-friendly and clear display saves time and resources during setup and operation. PSTX also offers many functions for application optimization, e.g. torque control: the most efficient way to start and stop pumps. The pump cleaning function can reverse the pump flow at intervals and thus loosen foreign objects or buildup, ensuring the availability of your pump system. The slow forward and reverse jogging operation increases flexibility, e.g. when operating conveyor belts and cranes.
| Property | Value |
| Rated power three-phase motor, inside-delta connection, at 230 V: | 37 kW |
| Integrated overload protection of the motor: | yes |
| Rated power three-phase motor, standard connection, at 230 V: | 18.5 kW |
| Rated ambient temperature without derating: | 40 °C |
| Rated power three-phase motor, standard connection, at 400 V: | 37 kW |
| Rated power three-phase motor, inside-delta connection, at 400 V: | 59 kW |
| Rated operating current Ie at 40 °C Tu: | 72 A |
| Type of voltage for actuation: | AC |
| Rated operating voltage Ue: | 208 to 600 V |
| Rated control supply voltage Us at AC 50 Hz: | 100 to 250 V |
| Rated control supply voltage Us at AC 60 Hz: | 100 to 250 V |
| Torque control: | yes |
| Internal bridging: | yes |
| With display: | yes |
| Function: | Reversing starter |
| Trip class: | adjustable |
| Protection class (IP): | IP00 |
| Protection class (NEMA): | 1 |
