NORDAC START (SK 135E / SK 175E) – Users Manual for Motor Starters10 BU 0135 en-4118• Motor overload protection (I 2t triggering characteristic in accordance with EN 60947) This meansthat a motor protection switch is not needed, merely a pre-fuse!• Mains and motor phase failure monitoring• Flux monitoring (minimum current monitoring)• Automatic phase sequence detection• Can be installed directly on, or close to the motor.• Permissible ambient temperature -25°C to 50°C (please refer to technical data)• Integrated EMC line filter for limit curve B• 4x DIP switches and four potentiometers for configuration• LEDs for diagnostics• RS232 interface via RJ12 plugAdditional featuresThe devices are available without an integrated field bus and alternatively in both versions (-ASI) withintegrated AS Interface and (-PBR) with integrated PROFIBUS DP.Differences between the individual versions (SK 135E / SK 175E) are summarised in the followingtable and will be described in this manual.Feature 135E 175E-ASI175E-PBRSoft start function x x xReversing function x x xTwo additional digital inputs x xAS interface (4I / 4O) ASIPROFIBUS-DP (4I / 4O) PBRTable 2: Additional features
