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It can vary with how many accessories you have inside, but the power supply will have a wattage rating meaning a maximum power it can draw without blowing up.
If it says 500 watts, take 500 divided by 120Volts and you get 4.61 amps. Remember that's a max and probably not what its drawing. If it says 300 watts, 300/120 = 2.5 amps.
A friend was trying to decide what size UPS to buy and when we tried to find out how much current the his Mac draws, the spec only said the max, 12amps which it turns out was way over what is actually draws. Even though the Mac power supply was designed to provide up to 12 amps or 1440 watts, we found out later it only used about 350 watts including 2 monitors.
If your asking this in order to select a UPS, they use a spec called VA. My PC system is very large and runs fine on a 1000VA UPS however there is a 1500VA UPS that might have been a better choice considering how much junk I have on this system.
More information:
We should not confuse the amperage drawn from the wall with the amperage available on the power rails. The best way to find out is to read the specifications. The power required from the wall and the power available on each output rail should be listed on the power supply. Dividing the rated wattage by 120 is not a good way to get the line current required. The rated wattage is based on the output, not the input, and the required amount will be more. Remember that with all the Transformers and other circuits inside, there will be some current loss for the output wattage is determined. Even modern ones can have a 20% loss or so.
What else can I help you with?
How many amps does a 750 watt 120 volt heater draw?
To find the current in amps that a 750 watt, 120 volt heater draws, you can use the formula: Amps = Watts / Volts. So, 750 watts divided by 120 volts equals 6.25 amps. Therefore, the heater draws approximately 6.25 amps.
How many amps is block heater for 2500ram 1999?
Find the block heater and look for the nameplate on it. It will be in watts. Use the following equation to find the amperage that it draws. Amps = Watts/Volts. The voltage to use for the truck will be 12 volts.
How many watts is a amp for 166 watts system?
To find the number of amps for a 166-watt system, you can use the formula: Watts = Amps × Volts. If you know the voltage of the system, you can rearrange the formula to calculate the amps: Amps = Watts / Volts. For example, if the system operates at 120 volts, then Amps = 166 watts / 120 volts, which equals approximately 1.38 amps. If the voltage is different, just substitute the appropriate value to find the corresponding amps.
How many btu in a 220 heater?
First you need to find out how many amps the heater draws. Then use this formula: Volts (220) X Amps = Watts Then take: Watts x 3.41214 = Btu/hr
How many watts is 7.5 amps?
There are zero watts in 7.5 amps. Watts are the product of amps times volts. W = A x V. As you can see from the equation a voltage value is missing from your question. Once a voltage value is added to the equation you can find the wattage of the device that draws 7.5 amps.
How many amps are in 40 volt amps?
Multiply the vots by the amps to find the volt-amps. Or divide the volt-amps by the voltage to find the amps.
How many KW in 32amps?
There are zero kW in 32 amps. Watts are the product of amps times volts. Once you find the voltage of the system multiply it times 32 amps and then divide that answer by 1000. This will give you the answer in kW.
How many amps does a 50 watt bulb use?
You just have to divide the watts by the voltage to find the amps. For example 60 watts on a 120 v system would take ½ amp.
What is the amps from a small light bulb?
You just have to divide the watts by the voltage to find the amps. For example 60 watts on a 120 v system would take ½ amp.
How many amps does a two slice toaster draw?
A typical two-slice toaster draws between 8 to 12 amps during operation. This can vary based on the toaster's wattage, which usually ranges from 800 to 1500 watts. To find the exact amperage, you can use the formula: Amps = Watts/Volts, with standard household voltage being 120 volts in the U.S.
How do I figure the amp draw of a unit that is rated max 590 watts at 120 volts?
To find the amp draw, use the formula: Amps = Watts / Volts. In this case, 590 watts divided by 120 volts equals approximately 4.92 amps. Therefore, the unit draws around 4.92 amps when operating at its maximum power of 590 watts.
How many amps does one light use?
You just have to divide the watts by the voltage to find the amps. For example 60 watts on a 120 v system would take ½ amp.
