Digital input DI 1-4

A ripple control receiver or remote terminal unit can be connected to digital input DI 1-4.

Information on EnWG §14a: Via the digital input, known as the grid operator interface, the SMA eCharger can actively respond to grid operator specifications to prevent grid overload and temporarily adjust the charging power to the corresponding specifications (in this specific case, 4.2 kW). The type of external control device (control box or ripple control receiver) is determined by the local grid operator.