Product advantages: 1. The traditional maximum current meter is 4 times the rated current, the product is smart meters, overload capacity. Up to 12 times the base reference current. 2. This product is measured by LCD digital power, no reset button, to avoid human tampering with the data! Type: Three Phase Four Wire Electronic Type Frequency: 50Hz Constant Pulse: 400imp / kWh Display: LCD Power Consumption: 2W, 10VA : ELECTRICAL Measuring Energy Range: 99999.9 Display Type: Digital Only Output Voltage: 380V Power Supply: AC Phase: Three Phase Rated Voltage: 380V Dimensions: 125 x 73 x 88 mm Operating Temperature: -10 to 50C Accuracy Class: 1 Max Operating Current: 80A - 99A Rated Voltage: 3 X 230V / 400V Max. current: 100A Installation: 35mm DIN Rail mounted Function 1: Three Phases 4 Wire Function 2: Electricity Meter Function 3: kWh Energy Meter Function 4: Power Consumption Meter Model Name: B: DDS576C color:White Material:plastic Package Contents: 1 x Energy meter DDS576C Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.