INSTALLATION OF THE HYDRAULIC UNIT for the underwaterhatches type:001013 page 3

The power connection for the motor needs 3 x 440V 60c/sec. The power is about 1.25 metric horsepower. If installing the power connection, take care that the seals of the motor hood, and the cable glands are properly mounted, to ensure water tightness. Use cable of at least 1.5mm˛.