Salve a tutti ! In base alla EN 62423:2012, Mi risulterebbe che i differenziali tipo F,  NON possono essere installati su distribuzioni 220 trifase, In particolare il punto dove dice: Type F RCBOs (Residual current Circuit Breaker with Overcurrent protection) with rated frequency 50 Hz or 60 Hz are intended for installations when frequency inverters are supplied between phase and neutral or phase and earthed middle conductor and are able to provide protection in case of alternat