Description:     The SDM630Modbus measures and displays the characteristics of single phase two wires(1p2w) , three phase three wires(3p3w,) and three phase four wires(3p4w) supplies, including voltage, frequency, current, power ,active and reactive energy, imported or exported. Energy is measured in terms of kWh, kVArh. Maximum demand current can be measured over preset periods of up to 60 minutes. In order to measure energy,the unit requires voltage and current inputs in addition to the supply required to power the product.     SDM630Mbus supports max. 100A direct connection,saves the cost and avoid the trouble to connect external CTs,giving the unit a cost-effective and easy operation.Built-in interfaces provides pulse and Mbus outputs.Configuration is password protected.     Measures kWh Kvarh, KW, Kvar, KVA, PF, Hz, dmd, V, A, etc.     Bi-directional measurement IMP & EXP     Two pulse outputs     Mbus     Din rail mounting 35mm     100A direct connection         Specification:     Voltage AC (Un): 230/400V     Base Current (Ib): 10A     Max. Current (Imax): 100A     Mini Current (Imin): 0.5A     Starting current: 0.4% of Ib     Power consumption:<2W/10VA     Frequency: 50/60Hz (±10%)     AC voltage withstand: 4KV for 1 minute     Impulse voltage withstand: 6KV-1.2uS wavform     Overcurrent withstand: 30Imax for 0.01s     Pulse output rate: 1000imp/kWh (default); 100/10/1 imp/kWh/kVarh (configurable)     Display: LCD with blue backlight, Max. Reading 999999.99kWh         Package Included:     1xEnergy Meter