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Regarding any electrical equipment, especially motors, 746 watts or volt-amps is 1 horsepower. If your table saw is rated 4 horsepower, that would be 2984 volt-amps and at 110 volts that calculates to 27 amps. The above answer is correct. At 110 volts you cannot run a 4 horsepower motor on a 15 amp circuit.
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The above theoretical answer is correct however you should allow extra for efficiency less than 100% and a power factor less than 1, so the current requirement should be increased by 25% to 34 amps.
<<>>The rule of thumb for motors at 240 v is 7 amps per HP, which would be 28 amps for 4 HP, but because the voltage is less the current must be more, 28x240/110 which is 61 amps.
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What are transformers rated?
A transformer's capacity is rated in volt amperes(V.A). This is the product of the secondary winding's current rating and voltage rating.
What wire to use for 4100r9w plug 250v 3p4w?
This plug is a pin and sleeve 250 volt three phase four wire device. It is rated at 100 amps. A #3 copper conductor with an insulation factor of 90 degrees C is rated at 130 amps.
How much energy is in a volt?
none the energy is in the amps
If a 50 amp fuse rated 32 volts is used in a 12 volt circuit at what amperage will it fail?
The fuse will fail at 50 amps regardless of which voltage you use.
In order for a 30 volt 90 watt lamp to work properly in a 120 volt supply the required series resister in ohm is?
A 30 volt 90 watt lamp has 3 amps going through it. The series resistor also has 3 amps going through it, by Kirchoff's current law. The voltage across the resistor is 90 volts. With 3 amps, that is 30 ohms. (By the way... The resistor must be rated to carry 270 watts. That is a lot of power for a resistor.)
What are transformers rated?
A transformer's capacity is rated in volt amperes(V.A). This is the product of the secondary winding's current rating and voltage rating.
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 do you Convert 220v 20hp to amps?
1 horsepower = 746 watts, 1 watt = 1 volt x 1 amp => 20 Horsepower = 14,920 watts => 14,920 watts / 220 volts = 67.82 amps
How many amps in a small table lamp?
A 120 volt table lamp with a 75 watt bulb will pull 0.625 amps. With a 100 watt bulb it will pull 0.833 amps. And with a modern fluorescent 13 watt bulb it will pull 0.108 amps.
17.60amperes what is the equivalent in horsepower?
That will depend on the voltage together with the amperage. Multiply voltage times amperage to get the watts. There are about 746 watts to one horsepower. A 220 volt circuit at 17.60 amps would be about 5.2 horsepower.
Is 9 amp drill as powerful as 14 volt?
Your question is similar to: "Is an apple more powerful than an orange?" You are comparing two different parameters. Electric Power = Volts multiplied by Amperes = Volt-Amps. To know which drill is more powerful, you need to compare the Volt-Amps of each drill with the other one. If the battery voltage is the same for both drills (it probably is not), then the one with the highest motor current rating SHOULD be the most powerful. However, manufacturers tend to fudge some on their ratings. When they say "This is a 9 Amp drill", often it is not clear or not defined what they mean. Is the battery rated for a 9 Amp output, or is the motor rated to use 9 Amps maximum, or 9 Amps average, or are the wires running from the battery to the motor rated for 9 Amps? You see what I mean. Electric power cannot be measured in Amps or in Volts, but must be a combination of the two (Volt-Amps, or Watts, or Horsepower, or some known and well-defined power quantity).
With 110 volt ac current and 7 amps how many hp do you have?
To calculate horsepower, use the formula: Horsepower = (Voltage x Current x Efficiency) / 746 Given 110 volts and 7 amps: Horsepower = (110 x 7) / 746 Horsepower ≈ 1.03 hp
What is the proper size wire cord for a 12 amp vacuum sweeper 120 volt?
16 gauge is rated at 13 amps, but I would use 14 gauge which is rated at 15 amps just to be safe.
What has more power a 5 amp grass trimmer or a 18 volt one?
At a specific voltage the higher the amperage the higher the rated horsepower of the motor. You will see the amperage rating used when manufactures sell hand tools. A saw that draws 12 amps, it is stated, is better than the saw that draws 9 amps. As the question stands a comparison can not be made between voltage and amps.
What size of 12v transformer will run 600watts?
Amps * Volts = Watts Amps * 12 = 600 600/12 = Amps = 50 amps You would need a reserve capacity, so I'd go somewhere between 60 or 100 Amp rated transformer. Transformers are rated in volt-amps which is usually calculated the same as watts. But the term "watts" technically does not apply to transformers. So you need a 600 volt-amp transformer or, as Redbeard has suggested, you need an 800 or 1000 volt-amp transformer. That's a lot of amps for a 12 volt system so I recommend you double check your requirements. You will need a #2 gauge wire if your requirements are correct.
How do you figure the watts of a 110 volt pump that is 135 hp and has an amp draw of 54?
Yes, power = voltage x current = 54 x 110 = 5940 watts. But the odd thing is the rated horsepower. I was taught that one horsepower = 746 watts, so 135 hp = 100,000 watts. Are you certain that the pump is rated at 136 horsepower? Or can anyone else address the discrepency? W=volts X amps; therefore W= (110)(54)
What gauge wire for 240 volt at 40 amps?
For a 240 volt circuit at 40 amps, you should use 8-gauge wire. This wire size is rated to safely carry 40 amps of current and is suitable for most residential applications. Be sure to consult local electrical codes and regulations before undertaking any wiring project.
