Installation note:
If you have a borehole cover (or similar) with a set hole cutout to put in the motor cable, the Outside Diameter of the motor connector is 30mm, as long as the connector goes through the hole it can then be sealed by using a "split gland", splitable gland / divisible gland. These are split to go around the cable and allow you to install without removing the plug. If the hole is not big enough (25mm) then cut a bigger hole (32mm) and install a split gland.