Performancecriteria: Operating humidity ≤75%Storage humidity ≤95%Operatingtemperature -10°C-+50°CStoragetemperature -30°C-+70°CInternationalstandard IEC62053-21Accuracyclass 1Protectionagainstpenetration ofdustandwater IP51Insulatingencasedmeterofprotectiveclass Ⅱ Specifications: Nominalvoltage (Un) 230VACOperationalvoltage 161-300VACInsulationcapabilities: ACvoltagewithstand 2KVfor1minute Impulsevoltagewithstand 6KV–1.2μSwaveformBasiccurrent(Ib) 5AMaximumratedcurrent(Imax) 50AOperationalcurrentrange 0.25A-50A Overcurrentwithstand 1500Afor0.01s Operationalfrequencyrange 50Hz±10%Internalpowerconsumption ≤2W/10VTestoutputflashrate(REDLED) 1600impulsesperkWhPulseoutputrate(pins2 3) 1600pulsesperkWhPowersupplyindicator(GreenLED) MeterisconnectedandworkingOKConsumptionindicator(REDLED) Flashingatloadrunning DimensionsHeight 88 mm Width 75 mmDepth 68 mmDistancebetweeninstallationholes 63 mm(installationmodeinfrontofboard)Weight 0.2Kg(net)