Answer for USA, Canada and countries running a 60 Hz power supply service. Watts= voltage X amps At 120 volt total watts would be 2400 at 20 amps. The electrical code states that circuit conductors that are fed by this breaker on a continuous load can only be loaded to 80%. #12 wire rated at 20 amps, derated to 16 amps continuous = 16 x 120 = 1920 watts, #10 wire rated at 30 amps derated to 24 amps continuous = 24 x 120 = 2880 watts. On load calculations this derate should be taken into consideration. To maintain the required wattage needed for the load the wire size and/or the next size breaker may be needed.
A #12 wire can carry 20 amps. Assuming the connected voltage is 120 volts the wattage will be Watts = Amps x Volts. W = 20 x 120 = 2400 watts. The circuit can legally be loaded to 80%. 2400 x 80% = 1920 watts. The maximum amount of loads that can be connected to a 20 amp #12 wire have to be added up individually but stay under 1920 watts.
Yes but you will not get the full watt rating out of the tank. Watts = amps x volts. Say the tank draws 20 amps. 20A x 240V = 4800 watts. 20A x 208V = 4160 watts. It will take longer to heat your water with less wattage.
To answer this question the voltage has to be given. I = W/E. Amps = Watts/Voltage.
Wire is rated in ampacity, You can use only 80% of the rated ampacity. Voltage and amperage are inversely proportional. So at 120 volts alternating current you safely run 1800 watts ( I have added a small safety margin). At 240 volts you can run 3600 watts. I hope this has answered you question Ampsxvolts=watts watts/volts=amps
That depends on the voltage, but the residential standard is 240 volt. At that voltage you sit at around 15 amps, however it MUST be on a 20 amp circuit for national (US) or Canadian electrical code, as you can only load your circuit to 80% of it's capacity.
A 20 amp breaker can handle up to 2400 watts per hour (20 amps x 120 volts = 2400 watts).
The unit of power is expressed in watts, and the product of current (Amps) and voltage (volts) is power there fore if you multiply the amps and the volts give watts. so 20 x 240 will give you a 4800 watts of power.
250 watts divided by 12 volts = amps or around 20 amps
Watts = Amps * Volts Watts = 20 amps * 100 Volts Watts = 2000 2,000 Watts or 2k Watts
Watts = Amps * Volts Watts = 20 amps * 100 Volts Watts = 2000 2,000 Watts or 2k Watts
No. A 120 volt 15 amp service will handle a maximum of 1,800 watts. Even a 20 amp service will only handle 2400 watts and that is at max load which you should never load on a 20 amp circuit. You will need a 30 amp 120 volt or 240 volt service for 2400 watts.
Twenty amps is zero watts. You are missing one value. W = Amps x Volts. <<>> It depends on the resistance and the draw current in the electrical circuit.
Zero. Watts is the product of Amps x Volts. As you can see an amperage value is needed. Voltage = Watts/Amps. Volts = 200/? 20 volts
UPS batteries are typically rated at how many ampere hrs they can supply. IF your 20 Watt device is supplied by 120V then it draws 1/6 amps. (Watts = Amps * Volts for a resistive load). If your UPS were rated for 1 A Hr you could power your device for 6 hours.
it would depend upon the current. Power (watts) = I (current in amps) x E (voltage). 2 watts = 15 amps x .133 volts 2 watts = 20 amps x .10 volt
750 watts per horse power20 x 750 = 15,000 watts / 220V = 68A68 amps at 220 volts