How many amps is an air conditioner?
Most common voltage ratings for AC units are 115, 125 and 220 volts, and amperage rating can run from 15 to 20 amps. The lower two voltage ratings are common in smaller units, while units with a rating higher than 15,000 BTUs will require a 220-volt circuit.
A typical 2-ton central air unit that puts out 24,000 BTUs will draw between 15 and 20 amps.
- A "ton" in air conditioning is a reference to the heat capacity of a ton of melting water ice, over the period of one day. It is defined as 12000 BTU/hr, or 3517 watts. So for 1.5 tons, this will turn out to be 18000 BTU/hr or 5275.5 watts.
- The more watts used the higher the amp draw so keep that in mind. Most microwaves, installed originally in RV's, are high wattage and can draw 15 amps easily. Further understand that when a microwave, or any other appliance, first comes on it will draw anywhere form 3 - 5 amps more for start-up.
- Central Air Conditioner – 3500 Watts. Central A/C Fan Only – Compressor Off – 750 Watts. Largest Window Units – 1440 Watts. Medium Window Unit – 900 Watts.
|Motorhome 5th Wheel and Camp Trailer Roof Top Air Conditioners||Watts Required for start up||Average wattage once running|
|7000 btu RV air conditioner||1700||600|
|10,000 btu RV air conditioner||2000||700|
|13,500 btu RV air conditioner||2750||1250|
|15,000 btu RV air conditioner||3500||1500|
- Ovens use 1000 to 5000 watts, with an average modern oven using around 2400 watts on medium to high heat. Click calculate to find the energy consumption of an Oven using 2400 Watts for 1 hour a day @ $0.10 per kWh.
- Wattage Chart
Motorhome 5th Wheel and Camp Trailer Roof Top Air Conditioners Watts Required for start up Average wattage once running 7000 btu RV air conditioner 1700 600 10,000 btu RV air conditioner 2000 700 13,500 btu RV air conditioner 2750 1250 15,000 btu RV air conditioner 3500 1500
- A washing machine will use 400 to 1300 watts, with modern Energy Star rated models using about 500 watts. Click calculate to find the energy consumption of a clothes washer using 500 Watts for 0.25 hours a day @ $0.10 per kWh. This is the same as washing twice a week for 52.5 minutes each time.
Updated: 25th November 2019