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"Measurement: -Compliance with EN 61326-1 EN 61010-1 standard -Connection type: 3P4W(Three Phase four wire) -Access Method:Via CT Accuracy: -Voltage: ±0.5% -Current/Power:+0.5% -Electric energy: +1% Voltage: - Nominal Voltage(Un): 3x220/380V...3×240/415V -Operating Voltage: 207V ~ 253V -Limited Voltage:184V ~ 264V Current: 250A/50mA Frequency: 50Hz or 60Hz Display Interface: -LCD -With backlight LED Indication: Pluse Output Communications: -Protocols: ModBus-RTU -Interface: RS485 -Baud rate: 1200/2400/4800/4800 / 9600bps(default)19200/115200 bps(customizable) Measured Values: -Import/Export kWh, kvarh -Instantaneous kW, kvar, kVA -Irms, Vrms, Frequency, Power factor,etc Environmental: -Operating Temperature : -25°C~+55°C -Storage Temperature : -40°C~ +70°C -Relative Humidity: ≤95%(non-condensing) -Atmospheric Pressure: 63.0kPa ~ 106.0kPa Dimension: -72mm×100mm×65.5mm -Mounting Type:DIN35mm"