PM3255 DIN mount energy meter with a 128 by 96 pixel backlit, LCD display. The meter provides Class 0.5S accuracy per IEC 62053-22 standard and 32 samples per cycle. The meter will measure Energy, Active and Reactive Power, Voltage, Current, Frequency, Power Factor, Apparent Power, Total Harmonic Distortion and up to 15th Harmonic. The meter will function in a 50Hz or 60Hz network and accepts supply voltage ranging from 100 to 277VAC, 173 to 480VAC and 100 to 300VDC. Line rated current for this meter is 1A or 5A input and will support Single Phase, Single Phase and Neutral or Three Phase configurations. Direct measurement range is 50 to 570VAC, with an external VT 570 to 999000VAC. The range of measurement voltage between Phases is 80 to 570VAC at 45 to 65 Hz. Measurement range between Phase and Neutral is 50 to 330VAC at 45 to 65 Hz. Communication protocol is Modbus RTU and ASCII 2 wires with RS485 port support. Support for two digital input and two digital outputs. The meter offers 512kB of memory for event recording with up to 15 alarms with power and energy consumption logs. Product dimensions are as follows: width 3.54 in (90 mm), depth 2.76in (70 mm), height 3.74 in (95 mm) and product weight 9.17 oz (260 g).