The power rating and voltage for the pump will determine the size branch necessary to supply the power to the load and the over-current protection.
For instance, a 1 hp pump would be 746 watts. At 240 volts, that would be a little more than 3 amps, when operating, and possible 10 amps during the first half-second when it starts up.
To determine the amperage of a 20 kW heater, you can use the formula: Amperage (A) = Power (W) / Voltage (V). For example, at a standard voltage of 240 volts, the amperage would be approximately 83.3 amps (20,000 W / 240 V). If the heater operates at a different voltage, simply adjust the calculation accordingly.
No. A water heater requires a 240 volt connection and cannot be re-wired to run on 120 volts. There isn't enough amperage in 120 volts to power the heating rods that are inside.
The amperage draw of a hot water tank typically depends on its size and power rating. A standard electric hot water heater usually operates at either 120 or 240 volts, drawing between 10 to 30 amps. For example, a 4500-watt heater running on 240 volts would draw about 18.75 amps. Always check the manufacturer's specifications for the exact amperage.
To calculate the amperage for a 240-volt, 1500-watt electric baseboard heater, you can use the formula: Amps = Watts / Volts. For this heater, it would be 1500 watts / 240 volts, which equals 6.25 amps. Therefore, the heater uses approximately 6.25 amps.
The maximum amperage capacity of a 240 amp breaker is 240 amps.
Watts = Amps x Volts for a resistive load like a water heater.
VOLTS x (VOLTS/OHMS) = WATTS 240 X (240/8) = 7200 Watts = 7.2KWatts
The formula you are looking for is I = W/E.
To calculate the amperage, you can use the formula: Amperage = Watts / Volts. Thus, for 10,000 watts at 240 volts, the amperage would be 41.67 Amps.
Current (Amps) = Power (Watt)/Voltage (V) Therefore a 4500W heating element will draw 18.75A = 4500W/240V
The recommended voltage for a 4500 watt water heater element is typically 240 volts.
The GE water heater SE50M12AA01 is a 5500 watts or 5.5 Kilowatts water tank. The amperage on such a tank is I = W/E. Amps = Watts/Volts. Since most hot water tanks in North America use a voltage of 240, the amps will be 22.9 amps. It must be fed with a #10 conductor from a 30 amp breaker.