As it is known, when capacitors start to operate, they cause a high frequency between 1-15 kHz, and a current that is about 180 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. I
n 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.