Your #1 Source for Contactors & Starters! Questions? Just ask!
That's what we're here for. A contactor is an electrical switch
used for switching current on and off in a circuit without
overload protection. A starter is usually an assembly, that
includes a contactor plus an overload relay, used to start an
electic motor. Contactors are rated by their current in amps
while starters are rated by their horsepower capacity and the
current they use.