Electro-hydraulic circuit comprising - a fixed displacement hydraulic pump and an electric motor configured to drive the fixed displacement hydraulic pump in rotation; - a hydraulic actuator (BOOM, BUCKET, AUX) configured to move an member or work tool and be powered by the hydraulic circuit; - a recovery tank arranged to collect hydraulic oil; - an open center proportional directional solenoid valve (V1, V2, V3) interposed between said fixed displacement hydraulic pump and said hydraulic actuator and comprising a rest position in which it is configured to isolate the hydraulic actuator by hydraulically connecting the fixed displacement hydraulic pump with the recovery tank via an open center branch; - an operator input device (joystick); - a processing unit configured to receive electrical signals of the operator input device (joystick) and generate electrical control signals (Spool Command, Rev, Torque) for the open center proportional directional solenoid valve (V1, V2, V3) and for the electric motor and configured to detect the torque of the electric motor and, when the detected torque of the electric motor exceeds a predefined limit value, the processing unit is configured to command the execution of at least a power reduction operation by reducing the number of revolutions of the electric motor and/or bringing the corresponding open center proportional directional solenoid valve (V1, V2, V3) to the rest position; said electro-hydraulic circuit is characterized in that it further comprises a pressure relief valve arranged along a supply branch which connects the pump to the recovery tank, the supply branch being arranged in parallel to the open center branch, the pressure relief valve establishing the maximum pressure of the electro-hydraulic circuit and wherein the predefined limit value is less than a maximum torque generated by the electric motor, corresponding to the maximum pressure of the electro-hydraulic circuit defined by the pressure relief valve. - a fixed displacement hydraulic pump and an electric motor configured to drive the fixed displacement hydraulic pump in rotation; - a hydraulic actuator (BOOM, BUCKET, AUX) configured to move an member or work tool and be powered by the hydraulic circuit; - a recovery tank arranged to collect hydraulic oil; - an open center proportional directional solenoid valve (V1, V2, V3) interposed between said fixed displacement hydraulic pump and said hydraulic actuator and comprising a rest position in which it is configured to isolate the hydraulic actuator by hydraulically connecting the fixed displacement hydraulic pump with the recovery tank via an open center branch; - an operator input device (joystick); - a processing unit configured to receive electrical signals of the operator input device (joystick) and generate electrical control signals (Spool Command, Rev, Torque) for the open center proportional directional solenoid valve (V1, V2, V3) and for the electric motor and configured to detect the torque of the electric motor and, when the detected torque of the electric motor exceeds a predefined limit value, the processing unit is configured to command the execution of at least a power reduction operation by reducing the number of revolutions of the electric motor and/or bringing the corresponding open center proportional directional solenoid valve (V1, V2, V3) to the rest position; said electro-hydraulic circuit is characterized in that it further comprises a pressure relief valve arranged along a supply branch which connects the pump to the recovery tank, the supply branch being arranged in parallel to the open center branch, the pressure relief valve establishing the maximum pressure of the electro-hydraulic circuit and wherein the predefined limit value is less than a maximum torque generated by the electric motor, corresponding to the maximum pressure of the electro-hydraulic circuit defined by the pressure relief valve.