also check
**broken link removed**
if you use relay, make sure to read datasheet carefully and derate contacts accordingly (depends on type of load too, rating is not the same for AC or DC loads, it is different for inductive loads and depends on voltage etc.). if you are not comfortable with this or have any doubts, oversize it or use contactor. contactor is just a special version of a relay (bigger, designed to work with higher voltages, larger loads, has force guided contacts, designed for inductive loads etc.).
on relay 10A is not always 10A. this is merely class of device. actual info on relay rating is buried in the datasheet.
for example on your relay breaking capacity drops to max 0.12A if you are using it to switch DC at 220V. that is 80x less than "10A"
for single phase AC motor running on 230VAC, this relay is good for max 0.55kW or 550W which means only 2A.
beware of 'AC' ratings too, you need to become aware of differences between AC1 and AC15 mentioned in the spec.