On Sun, 13 Apr 2014 18:21:15 -0700, "Lew Hodgett"
wrote:


"Mike Marlow" wrote:

Not to mention that the themal overload in the switch has no idea at
all what the motor is seeing.
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Sorry Charlie, only the best get to be StarKist.

Sorry Charlie, you're in the wrong ocean.

The motor and overload are in series and see
exactly the same current.

But NOT the same temperature. If it were a matter of current, motors
wouldn't have Klixons.

BTW, at least 95% of all 3 phase motors are protected
by an overload relay that is art of the magnetic motor
starter used to control the motor.

Irrelevant. All fractional-horse motors are protected with Klixons,
or similar.