A standard 3kW immersion heater will require a fuse rating of 13 A. This is because, it draws a current of 12 A.
junction box
For a 3kW heater, you would typically need a 13 amp fuse. This is calculated by dividing the wattage of the heater by the voltage of your power supply (3,000W ÷ 230V ≈ 13A). Always consult the manufacturer's recommendations and a qualified electrician to ensure the proper fuse size for your specific heater.
Power = E2 / RResistance = E2 / power = (240)2 / 3,000 = 19.2 ohmsCurrent = E / R = 240 / 19.2 = 12.5 amperes
Yes it can, you can either us a bestway or intex 3kw heater.
3kw heater heating a 10 foot pool may take 4 to 8 hours for heating it up to 20 to 25 Degrees Celsius. This also depends on the outside temperature.
To size a fuse, you need to consider the maximum current that your circuit will draw. The fuse should have a current rating slightly higher than this maximum expected current to provide protection without nuisance tripping. The voltage rating of the fuse should also match the circuit voltage.
i have a 5ft pool and have a intex 3kw heater how long will it take to heat pool to a good swimm tempature
You should contact a certified, and licensed electrician.
How to calculate a cable size of 3kw motor
3KW
3kW is 3,000 watts.