Page 15 of Contactors and Motor Protection by Moeller Electric USA

specialusecontactors capacitor switching contactors economical solution for both individual and group power factor special weld resistant contact material ensures longer life correction applications without series resistors three-phase capacitors 50 ­ 60 hz 240 v 480 v 600 v kvar kvar kvar 30 60 75 application note in the case of group compensation multi-stage capacitor banks are connected to the main supply as required in the process transient currents of up to 180 x ie can flow between the capacitors the contactors for capacitor are weld-resistant with inrush current peaks up to 180 x ie due to their special contacts through the use of quick-discharge resistors the danger of complete polarity reversal in the event of rapidly recurring closure can be excluded the resultant discharge times are 0.2 s the resistor is switched by means of two auxiliary contacts of the contactor auxiliary contacts no 2 nc 2 type dil3mk72/22120v60hz article number 209974 price see green pages circuit with quick discharge resistor l1 l2 l3 circuit without quick discharge resistor l1 l2 l3 a1 a2 1 3 5 2 4 6 21 31 22 32 a1 a2 1 3 5 2 4 6 22 4 32 r1 r11 c1 r11 r1 r11 c1 r11 r11 r11 ordering instructions locate the desired contactor 1 order using the type article number 2 see page 27 for a different coil voltage 3 see pages 15 22 for auxiliaries accessories 4 1

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