To calculate the amperage needed for 1500 watts at 120 volts, use the formula: Amps = Watts / Volts. In this case, it would be 1500 watts / 120 volts = 12.5 amps. Therefore, you would need a 15 amp breaker for this circuit to accommodate the power load safely.
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To calculate the breaker size for a 1500-watt 120-volt heater, use the formula: Breaker size = Power (Watts) / Volts. In this case, 1500 watts / 120 volts = 12.5 amps. Therefore, you would need a 15-amp breaker for a 1500-watt 120-volt heater to allow for a safety margin.
A 400 watt heater can safely be used on a 15 amp circuit. The size breaker needed for a circuit is determined by the size of the wiring in that circuit. AWG #14 wire requires a 15 amp breaker. AWG # 12 wire requires a 20 amp breaker.
To determine the amperage of a generator, you will need to know the output voltage as well. Once you have that information, you can use the formula: Amperage = Watts / Voltage. For example, if the 1500 watt McCullough generator outputs 120 volts, then the amperage would be 12.5 amps (1500 watts / 120 volts).
To calculate the voltage from watts, you need to know the current (amps) as well. The formula is: Volts = Watts / Amps. Without knowing the current, it's not possible to determine the voltage from watts alone.
To calculate amps, you need to know the voltage of the circuit. The formula to convert watts to amps is Amps = Watts / Volts. If the voltage is 120V, then 1200 watts would be equal to 10 amps (1200 watts / 120 volts = 10 amps).