DIN-rail Energy Meter (Three phase,6 module) Features With RS485 and Far-infrared communication port Communication baud rate can be set 1200,2400,4800,9600,19200(option) Three phases electricity Energy meter for DIN-rail mounting (six modules). CT Changing-Ratio fully programmable.Active energy measurement in three phases four wires alternating current circuits. Standard compliance GB/T17215-2002 IEC62053-21:2003 Accuracy Class | 1.0 Class | Reference Voltage ( Un) | 230/400V AC (3~) | Operating Voltage | 161/279 - 300/520V AC (3~) | Impulse Voltage | 6kV -1.2μS waveform | Rated Current (Ib) | 1.5 /10 A | Maximum Rated Current (Imax) | 6 /100A | Operating Current Range | 0.4% Ib~ Imax | Operating Frequency Range | 50Hz± 10% | Internal Power Consumption | <2W/10VA | Operating Humidity range | <75% | Storage Humidity range | <95% | Operating Temperature range | -10º C ~+50º C | Storage Temperature range | -30º C - +70º C | Overall dimensions(mm) | 100×122×65 / 116x122x65 / 130x122x65 mm | Weight(kg) | about 0.7kg (net) | CT Changing-Ratio | Fully Programmable( 27 ratios) | Communication port | RS485 and Far infrared port | Data save | More than 20 years | Protocol | MODBUS RTU | |