DGBFE1596416-03.2017-DGbFEIRuDesignation on the name plate Sticker on the terminal boxY/YYCompressors with this marking are suitable for direct or partial winding start. The motor winding issubdivided into two parts: Part winding 1 = 50% and part winding 2 = 50%. This winding divisionreduces the start-up current needed for a part winding start to approx. 50% of that for a direct start.INFO A mechanical unloaded start with bypass solenoid valve isnot required.5| Electrical connection5.1 Information for contactor and motor contactor selectionAll protection equipment, switching and monitoring devices must comply with the local safety regula-tions and established specifications (e.g. VDE) and regulations as well as the manufacturer’s speci-fications. Motor protection switches are required! Motor contactors, feed lines, fuses and motorprotection switches must be rated according to the maximum operating current (see name plate).For motor protection, use a current-independent, time-delayed overload protection device for monitor-ing all three phases. Adjust the overload protection device so that it must be actuated within 2 hoursat 1.2 times the maximum working current.INFO Connect the compressor motor in accordance with the circuit diagram(see inside of terminal box).Use suitable cable entry point of the correct protection type (seename plate) for routing cables into the terminal box. Insert the strainreliefs and prevent chafe marks on the cables.Compare the voltage and frequency values with the data for themains power supply.Only connect the motor if these values are the same.DANGER Risk of electric shock! High voltage!Only carry out work when the electrical system is disconnectedfrom the power supply!5 Electrical connectionATTENTION When attaching accessories with an electrical cable, a minimumbending radius of 3 x the cable diameter must be maintained forlaying the cable.5.2 Standard motor, design for direct or part winding start