... It also can display total energy consumption by step type impulse register or LCDdisplay. This watt-hour meter is according ... to EN62053-21 Accuracyclass 1,2Frequency50/60HzSingle phase220-240VRated impulse voltageUimp 6KV-1.2/50SPower consumption≤1.5w/6VA ... to EN62053-21 Accuracyclass 1,2Frequency50/60HzThree phase3X380V,3XRated impulse voltageUimp 10KV-1.2/50SPower consumption≤2w/10VA per ...