How large is the starting current for a 1.5 kW submersible pump?
1KW about 2 current, so the rated current is about 3A, and the starting current is usually 3-8 of the rated current, that is 9-24A.
If single-phase, the no-load current is about 3.7A, the rated current is about 10A.
The starting current is 2-7 times the power