Why your home’s (120v 15 circuit) does not overload tools that only use 1 amp, 2 amps, 3 amps (etc. anything less than the 15)?

Question

For example if I connect a 90v motor to a 120v battery source doesn’t that overheat and blow my motor?

Why is it though when it’s 120v from the wall then the motor is still fine?

In: Engineering

Answer 1

If it really is a 90v motor designed to be hooked up to 120v current, it’ll have a transformer to step the voltage down to 90v, so that won’t be a problem. You might have a problem because a battery outputs *direct* current instead of *alternating,* though.

In the general case of your title question, current is pulled, not pushed. The 15A rating isn’t what *is* delivered, but what *can be* delivered without the circuit overloading.