# Double Pole Circuit Breakers

(Doug Miller)

Assume you have a 200 amp 240 vac breaker with max load, you measure the current on each leg and it is 200amps.This DOES NOT add up to 400 amps. The current you measure on one leg is the SAME current you are measuring on the other leg. Dont confuse same as meaning equal. Same means same as in you read the curent on a conductor and slide the clamp on amp meter down the wire a couple of inches and read the SAME current again.
If the currents in each side are not equal then the current in the low side combined with the current in the neutral will be the SAME as the current in the high side.. Kirchoff's law explains this a lot more easily using math than English.
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snipped-for-privacy@yahoo.com wrote:

In short you don't add the amps together you add the voltages together. So 30A @ 120V + 30A @ 120V ______________ 30A @ 240V

--
Joseph Meehan

Dia duit
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