Interface protection unit compliant with italian standard CEI 0-21, for single-phase and three-phase system, with or without neutral, in low voltage, dual threshold minimum and maximum voltage and frequency protection, 230VAC - 400VAC
Interface protection unit compliant with italian standard CEI 0-21, for single-phase and three-phase system, with or without neutral, in low voltage, dual threshold minimum and maximum voltage and frequency protection, 230VAC - 400VAC