SENTRON PAC3120, LCD 96 x 96 mm Power Monitoring Device, control panel instrument with measurement of electrical variables, protocol: Modbus RTU, with graphical display, Ue rated: 690/400 V, 45-65 Hz, Ie rated: X/1 A or X/5 A AC, auxiliary power: 24 ... 60 V -20/+10% DC, screw terminal connection