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Old 03-05-2011, 11:34 AM   #1
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circuit breaker


how many amps for a circuit breaker to be used for a treadmill that uses 2.5 hp and 15 amp with inrush current.

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Old 03-05-2011, 11:46 AM   #2
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circuit breaker


Most outlets are rated at 15 amps and should have a 15 amp breaker. If your treadmill motor is showing a plate for a 15 amp current draw you would be marginal, at best, with a 15 amp breaker. You may need a dedicated 20 amp outlet and wiring back to your panel, along with a 20 amp breaker to safely chug off a few pounds so you can go out for a nice steak and lobster dinner. Enjoy.

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Old 03-09-2011, 11:18 AM   #3
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circuit breaker


the circuit breakers responsibility is to protect the branch wiring to the outlet your appliances are plugged into. 20 amp cb for 12 gauge wire, and 15 amp cb for 14 gauge wire. your tradmill should work on either type, although it would have more margin of error on the 20 amp/12 gauge.
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Old 03-09-2011, 11:49 AM   #4
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circuit breaker


If in fact the treadmill draws 15 amps, then you would need a 20 amp breaker with 12/2 running to the 20 amp rated outlet powering the treadmill. I believe code for circuits is 80% of the circuits capacity for an appliance draw (I believe I'm correct on this) so 80% of 20 amp circuit is 16 amps, allowing for a cushion for the circuit. (someone who is knowledgeable in the code correct me if I'm wrong).

Now, I find it hard to believe that the treadmill draws 15amps (but what do I know I've never owned a treadmill, so take that with a grain of salt), but that's a whole other idea.
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