The KMCSP-03A module was designed to protect the power supply of electronic devices against electromagnetic disturbances, lightning and overvoltage in the electrical system. Special varistors provide protection in the case of dangerous asymmetric voltages, which often occur simultaneously with symmetrical voltages. The filter absorbs high pulses very well, with an extremely short response time. This module has been specially designed to be used with the KOBER KMCS cascade module. It can also be used in various applications that are suitable for its characteristics.