Breaker Rating
May 16
2010
2010
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Breaker Rating
How to calculate circuit breaker rating?
Add the loads in amperes of each of the appliances on that circuit. Make sure that the total is less than the ampere rating of the circuit breaker. You should probably only use about 3/4 of the amperes the circuit breaker is rated for. For example, a 20 Amp breaker should only be loaded with about 15 Amps.
If only the wattage of an appliance is given, divide the wattage by the voltage to obtain the amperes. For example, a toaster may draw 1200 watts. 1200 watts / 120 V = 10 Amps. A light bulb may draw 60 watts. 60 watts / 120 V = .5 Amps.
Graco Nautilus Safety Rating | Graco Nautilus
