7Three-phase Multifunction LCD Digital Volt&Ammeter Power Meter Energy Accumulation RS-485 Product Description The meter MUST be used together with CT when the current is greater than 5A, 3-phase need 3pcs CTs. We have it in 30A/5A, 50A/5A, 100A/5A, 150A/5A, no matter which one you need, just contact us to adjust the price for you, $27 for 3pcs in total. Specifications: Input: Network: 3 phase 3 wires, 3 phase 4 wires Voltage: Overload: 1.2 times(Continuous), 2 times/10s(Instantaneous) Power Consumption: 1VA/Phase Resistance: 300k Accuracy: RMS Measuring, Accuracy class 0.5 Current: Overload: 1.2 times(Continuous), 2 times/10s(Instantaneous) Power Consumption: 0.4VA/Phase Resistance: 20M Accuracy: RMS Measuring, Accuracy class 0.5 Frequency: 40~60Hz, Accuracy 0.1Hz Power: Active/Regative/Apparent Power, Accuracy class 0.5 Enegy: Active Accuracy Class 0.5, Reactive Accuracy Class 1 Output: Digital Interface: RS-485 MODBUS-RTU Protocol Pulse Output: 2-way power pulse output, opto isolated Power Supply: Working Voltage: AC 220V Power Consumption: 5VA Environment: Working Temperature: -10~55C Storage Temperature: -20~75C Safety: Withstand Voltage: Input&Power Supply 2kV, Input&Output 2kV, Power Supply&Output>1kV Insulation: Input&Output&Power Supply to Device Out Case>100M Dimensions: 96*96*85mm(We also have 72*72*85/80*80*85/120*120*85mm Color: White Package List: 1 x 96*96*85mm Multifunction LCD Digital Volt Amp Power Meter