DIN EN 63052 VDE 0640-052:2016-11

This international Standard applies to power frequency overvoltage protection devices (hereafter referred to as 'POP') for household and similar uses, with a rated frequency of 50, 60 or 50/60 Hz, with rated voltage not exceeding 230 V a.c. (between phase and neutral), intended to be used in combination with a main protective device being either a CB in compliance with IEC 60898-1 or IEC 60898-2, a RCCB in compliance with IEC 61008-1 or a RCBO in compliance with IEC 61009-1, or as a single device having opening means able to open the protected circuit in specified conditions.