Quoting Reinhard: "1 hp = 746 watts so you so need at least 1120
watts to run a 1.5 hp motor.
The actual wattage depends on how much power the pump draws when
it starts
- starting draw can be 2 or 3 times running power, usually just 2
or 2.5

1120 divided by 220 is about 4 1/2, so I'm not sure how you get
your eight amp number.

That's the best advice is to actually measure it. And then figure
one and a half, to be sure. As the motor ages, the current draw
may increase.


--

Christopher A. Young
You can't shout down a troll.
You have to starve them.
..

"Toller" wrote in message
...
:

:
: Such interesting answers!
: You need to actually measure the current as the motor starts.
: Typically a 1.5hp motor will run on 8a, and start with 24a
(6500w), but most
: motors aren't typical; you have to actually measure yours.
:
: