AC/DC Single Phase Power Analyzer (TRMS) input: ..50A (AC/DC), 800VAC, 1000VDC isolated output: RS485 Modbus (I, V, W, VA, F, cosP, energy, THD) power supply: 24VDC (9.. 30V) ** ENERGY-O-RS-300, range up to 300 amp. model with RS485 Modbus + 0/10V output