Home > Products > Automation > ABB part number PSR3-600-70. PSR softstarter - The compact rangeThe PSR softstarter range is a simple yet reliable starting solution that utilizes only the most basic of soft starting features: soft start and stop. It performs well in applications requiring many starts per hour and is perfect for installations where you need to save space.Main benefits* Small and compact starting solution* Can perform many starts per hour* Reduce energy loss at full speed with built-in bypass.Main features* Rated operational current: 3 to 105 A* Operational voltage: 208–600 V AC* Control supply voltage: 24 V AC/DC or 100–240 V AC.