... 10HP Features: (1) small in size, can carry-on installed in the pump. (2) the controller directly ... stop function. Avoid water hammer effect and impact on power grids. Double-pump can be set to ... too low water level alarm, communications failures, and so on. (8) a full range of motor protection features ... and over-voltage and low voltage protection, and so on. (9) energy efficient, than the average of 30 ...