• Energy values backup (FeRAM backup values without battery need).
• Last screen page displayed backup (FeRAM backup without battery need).
• Easy configurable by free configuration software or by display menu.
• RS485 serial communication with MODBUS-RTU protocol, maximum 32 nodes.
• USB serial communication with Modbus RTU protocol for registers access and configuration.
• High precision: 0,2%class (S203TA-D).
• Protection against ESD discharge up to 4 kV.
• Measure input insulation: 4000 Vac towards all the other circuits.
• Insulation between communication and power supply: 1500Vac.
• Insulation between retransmitted output and power supply: 1500Vac.

• Analog output signal settable in voltage or current.
• Digital output pulse signal for Energy or Energy sign.
• Possibility for connection and management by external CTs with 5A output.
• Possibility for connection and management by external VTs.
• All kind of insertion possible: single phase, Aron, 4-wires, 3-wires .
• Possibility to compensate errors caused by frequency change in places where network frequency is not stable (frequency changes > 30 mHz).
• USB Firmware update
• Easy-wiring of power supply and serial bus by means of the bus housed in the DIN rail.
• S203RC-D can be used with rogowski coil of various full scale

Power Supply : 10-40 Vdc, 19-28 Vac (50-60 Hz)

Power consumption : 2,5 W

Status indicator : Power supply, Fail, RS485 communication

Display : Front LCD 2 lines x 16 characters alphanumeric (backlighted)

Accuracy class  : 0,2%

Insertion Type : 1- phase, 3-phase Aron, 3- phase with 4 wires