84873221 Crouzet Реле управления реле контроля фаз

Описание Технические характеристики 84873221 Crouzet Реле управления реле контроля фаз: Highlights & details H3US and M3US relays control, on 3-phase networks : - overvoltage between phases, - undervoltage between phases The H3USN relay controls, on 3-phase networks : - overvoltage between phases and neutral, - undervoltage between phases and neutral, - loss of neutral Multi-voltage Products Controls its own supply voltage True RMS measurement LED status indication Technical data