The PSR range is the most compact of all the ABB softstarter ranges, thereby making it possible to fit many devices into the same enclosure. The system concept with manual motor starters provides a far more compact starting solution than for example a star-delta starter. PSR softstarters from 3 to 45 A are possible to mount on a DIN rail, ensuring quick and easy mounting. Naturally, all sizes can be screw mounted. The set-up of the PSR is easily done and confirmed using the three clearly marked potentiometers on the front. The built-in by-pass on all sizes does not only save energy; it will also ensure the most compact ABB softstarter design and reduce the installation time. Thanks to the reduced heat generation, the softstarter can be mounted inside high IP class enclosures. Even without using torque control, the PSR range is designed to reduce water hammering and will allow a superior stop compared to the direct stop resulting from a star-delta starter or a DOL starter. See the special designed stop ramp with step down voltage below. All PSR softstarter sizes can easily be connected to the corresponding manual motor starters from ABB, using the special designed connection kits. This will both make the mounting and the connection easier and will provide a very compact starting solution containing short circuit and thermal protection, isolation function and soft starter - everything that you need.