VEVOR Deep Well Submersible Pump, 3HP/2200W 230V/60Hz, 37GPM Flow 640 ft Head, with 33 ft Electric Cord, 4 inch Stainless Steel Water Pumps for Industrial, Irrigation & Home Use, IP68 Waterproof Grade

It is 3 wire.

The built-in water pump cable is a three-core wire (excluding ground wire), and the coil contains a thermal protector. When the motor overheats, the thermal protector will sense and cut off the power to prevent the motor from burning.

Its weight is 26.6kg.

Poly flexible pipe can be used, an outlet connection will be needed.

Yes, the product can be self-supported on the concrete floor of a clean water reservoir by the base of the pump, no sand or soil is required.