Feature 1 Automatically loop display multiple parameters: Active Energy, Voltage, Current, Power, Power Factor, Frequency. 2 This energy meter adopts RS485 communication, with good anti-noise interference ability. 3 Flame retardant ABS outer case, anti-impact, corrosion resistant, good insulation performance. 4 High reliability, compact and lightweight, 35mm DIN rail mount. 5 Strong anti-electromagnetic interference, low power consumption, high precision, electricity anti-stealing.Item Type: 3 Phase 4 Wire Energy MeterModel: DDS578MRReference Voltage: 3 x 230/400 VReference Current: 3 x 5 (100) AFrequency: 50Hz / 60HzConstant Pulse: 400imp / kWhMaximum Working Current: 100AEnergy Measuring Range: 0.0-999999.99kwhOutput Voltage: 380VACDisplay: LCD 6 + 1Power Consumption: 2W, 10VAMaterial: Metal + ABS.w-e-text table td,.w-e-text table th,.wang-edit-text table td, .wang-edit-text table th{border: .5pt solid #000;};.w-e-text table,.wang-edit-text table{border: 1px solid #000 !important;}Package List1 x Energy Meter1 x Manual