The question makes no sense as asked.
The maximum current capacity of a 30 amp breaker for a 240v circuit is 30 amps.
240v
To calculate the current drawn by the 100W electric fan motor when plugged into a 240V socket, you can use the formula: Current (A) = Power (W) / Voltage (V). Therefore, Current = 100W / 240V = 0.42 Amperes. So, the motor will draw approximately 0.42A of current.
Well, maybe. What is the current rating on the spa circuit? What is the current rating on the welder? If the welder is larger than the outlet, then no. It must be the other way around. If the current ratings are OK, then yes. Your welder doesn't need 110V so it doesn't connext to neutral. Connect the hot leads to hot and ground to ground.
240v
With one interpretation of this question, the answer would be two 120V wires and a ground.
5amps of current will flow it
two hot one ground
Yes, because you will be able to maintain current flow between phases.
To convert power from 1500 watts at 240V to 375 watts at 12V, you can use the formula P=VI (power = voltage * current). First, calculate the current at 240V by rearranging the formula to I=P/V. Then, input the current calculated at 240V into the formula to solve for the current at 12V. Finally, rearrange the formula P=VI to solve for the power at 12V using the current calculated in the previous step.
3
To calculate the power of a contactor when you know the current (in this case, 30 amps), you can use the formula: Power (P) = Voltage (V) × Current (I). First, determine the voltage at which the contactor operates (e.g., 120V, 240V, or 480V). Then, multiply the voltage by the current: for example, at 240V, the power would be P = 240V × 30A = 7,200 watts (or 7.2 kW).