1.9 amps
if its a single current its 120v X 25 amp = 3000 watts
The average air compressor uses only about 120v. Which is the average house socket. Thus using about 400 Watts of power.
Power [Watts] = Voltage [Volts] * Current [Amps] These equations assume purely resistive loads, all in the ideal format, anything other than ideal will vary based on your homes wiring, the types of breakers that you use, the type of device [load] that you put on the circuit, etc. For a 20A Circuit: 120V (RMS) * 20A = 2400W (Keep in mind that this is an ideal case) For a 15A Circuit: 120V (RMS) * 15A = 1800W (Keep in mind that this is an ideal case)
Do the math: Amps x Volts = Watts. Your house is mostly 120V and each circuit is usually 15amps (not counting large appliances).
I don't know what exactly you mean by a "heat mat", but your question is kind of backwards. You don't run an electrical device *with* watts. You run them to *produce* watts (watts of light, watts of heat, watts of sound, etc). I believe the thing you are really asking is how many amps are required to run your device. As an example, consider a "1500 Watt heater" that is made to be plugged into a typical wall outlet in your home. The voltage in the wall is 120V, and the heater will produce 1500 watts of heat when plugged into that 120V. To calculate the amps, you divide the watts by the voltage. 1500W / 120V = 12.5A
Answer for the US: Breakers are rated in amps, not watts. However, a 15A breaker can handle 15 amps, or about 1800 watts (using 120V), or 3600 watts (using 240V). However, this is only rated for noncontinuous loads (those not lasting for more than three hours). For continuous loads (loads lasting three hours or more), one must derate the circuit breaker by 80%. So for continuous loads, that same breaker should only have 1440 watts (using 120V), or 2880 watts (using 240V) on it.
wattage is voltage and amperage multiplied. example V/A=W or 120v x 20a=2400 watts
How many Amps is the fridge pulling? Multiply the Amps by the 120V circuit you're plugging into and you'll get your Watts.
if its a single current its 120v X 25 amp = 3000 watts
You need amps
"Volts" is electrical pressure applied to a circuit; whereas, "ohms" is electrical resistance to that pressure. One cannot determine ohms from voltage without knowing either the current (in "amps") or power (in "watts"). A normal 120V household circuit can handle a maximum of 20 amps, so using ohm's law of resistance = voltage / current, the minimum resistance required in a 120V household circuit would be 6 ohms. Any less than 6 ohms will cause the circuit breaker to trip.
360 watts
The formula you are looking for is I = W/E. Amps = Watts/Volts.
A: That would be OK ONLY if the switch is to carry 3 amps maximum meaning 120v AC or approximately 40 watts
12
The average air compressor uses only about 120v. Which is the average house socket. Thus using about 400 Watts of power.
Power [Watts] = Voltage [Volts] * Current [Amps] These equations assume purely resistive loads, all in the ideal format, anything other than ideal will vary based on your homes wiring, the types of breakers that you use, the type of device [load] that you put on the circuit, etc. For a 20A Circuit: 120V (RMS) * 20A = 2400W (Keep in mind that this is an ideal case) For a 15A Circuit: 120V (RMS) * 15A = 1800W (Keep in mind that this is an ideal case)