Installation / mounting9.5 Capacitors to improve the power factorSIRIUS 3RW30 / 3RW4076 Manual, 10/2018, NEB535199502000/RS-AB/0059.5 Capacitors to improve the power factorCAUTIONRisk of property damageNo capacitors must be connected to the output terminals of the soft starter. If so, the softstarter will be damaged.Active filters, e.g. for power factor correction, must not be operated parallel to the motorcontrol device.If capacitors are to be used to correct the power factor, they must be connected on thedevice's line side. If an isolating or main contactor is used together with the electronic softstarter, the capacitors must be disconnected from the soft starter when the contactor is open.9.6 Maximum cable lengthThe cable between the soft starter and the motor must not be more than 300 m long (3RW30and 3RW40).The voltage drop due to the length of the cable to the motor may need to be consideredwhen dimensioning the cable.Cable lengths up to 500 m are permitted for SIRIUS 3RW44 soft starters (refer to the 3RW44System Manual (http://support.automation.siemens.com/WW/view/de/21772518)).
