INTERFACE PROTECTION UNIT COMPLIANT WITH ITALIAN STANDARD CEI 0-21, APRIL 2019 EDITION FOR trifazat SYSTEM, IN LOW tensiune, DUAL THRESHOLD MINIMUM AND MAXIMUM tensiune AND FREQUENCY PROTECTION, 230VAC - 400VAC.
Interface protection unit compliant with italian standard cei 0-21, april 2019 edition for trifazat system, in low tensiune, dual threshold minimum and maximum tensiune and frequency protection, 230vac - 400vac