The CSC Series Contactors are designed for capacitor switching.REFERENCE STANDARD:IEC 947-4-1
As it is known, when capacitors start to
operate, they cause a high frequency between 1-15 kHz, and a current that is about180 times higher than the rated current for
a very short time period (several milliseconds).This may result in welding the main contacts of standard duty contactors and/or
result in capacitor damages.In order to protect the capacitors, CSC series contactors are complete with limiting resistors. The CSC series can be used safely in single step or multiple step capacitor banks.