Meter Energy, Active and Reactive Power, Voltage, Current, Frequency, Power Factor and up to 63 Harmonic meters Contains 1.1 MegaByte memory for up to 14 selectable parameters with configurable interval and time This meter also features direct monitoring of neutral current Counter Operates on 50Hz or 60Hz mains and accepts supply voltage in the range of 100 to 480 VAC and 125 to 250 VDC The line rated current for this meter is 1A or 5A input and supports Single Phase and Neutral, Three Phase or Three Phase and Neutral configurations Measuring voltage range between phases , 20 to 690 VAC at 45 to 65 Hz Phase to Neutral measuring range is 20 to 400VAC at 45 to 65 Hz Connection protocol, RS485 port supported Modbus RTU and ASCII 2-wire plus Modbus TCP/IP, 10/ Ethernet/IP and BACnet/IP based on 100 Mbit/s,It is daisy-chained Ethernet with RJ45 port support Integrated connectivity feature allows support of DNP 3.0 protocol, access to a built-in web server and Serial to Ethernet gateway The meter also has four digital inputs and two digital outputs with WAGES support Product Dimensions are as follows: width 3.78 inches (96 millimeters), depth 3.03 inches (77 millimeters), height 3.78 inches (96 millimeters), and product weight 15.9 in (450 g).9 times (450 g).9 times (450 g).