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How many amps does a fridge use?
Nowadays, it is rare to have a refrigerator that uses more than 10 amps of electricity. However, if you have an old one, you would be surprised to find out that it used around 15 amps or even more. This is because many old units did not have an energy-efficient compressor to keep the temperature cold. Nowadays, with the demand of reduced energy use and more efficient gadgets, refrigerators have changed. Most of the new models perform better than the previous ones.
Fridges are one of the most energy-intensive appliances in most homes. Without them, a lot of food would go bad, but they can be pretty expensive to run. The average power consumption of a refrigerator is between 200 and 400 watts. This is the equivalent of a 100- to a 200-watt light bulb. And it adds up, costing the average household around $40 annually.
If you’re looking to save some cash and energy, try to keep your refrigerator temperature at or below 40 degrees. You should also try and use it as little as possible, such as using half a refrigerator and freezing the other half. You could also look into a chest freezer, which uses less energy, and ice packs, which use no energy and can last for more than a year if frozen correctly.
Can I run a refrigerator on a 15 amp circuit?
The answer is yes, you can run a refrigerator on a 15 amp circuit. But you will find that you will be sacrificing a lot of other things. 15 amp is the lowest capacity you can install a regular, household circuit. 15 amp circuits are a standard for a reason. Anything that you do on a 15 amp circuit, will be slow and inefficient. No air conditioners, or hair dryers.
You wouldn’t want to install anything that would cause a tripping hazard. The refrigerator would work, but it wouldn’t work as well as a 30 amp circuit. And it would probably be a lot louder. In fact, the refrigerator will be so loud, that you might just want to shut it down when you aren’t using it, or buy an even smaller refrigerator.
How many amps does the fridge draw?
Electric powered refrigerators use about 1000 watts of electricity, which is about ten times more than a simple light bulb. So, this means that every hour, the fridge will use 10,000 watts of electricity, or 1 kWh of energy per hour. A kWh costs only about one dollar, so that means that in 24 hours your fridge will cost you about $2.00, which is a lot cheaper than the $100 repair for a defrosted fridge!
Does a fridge need a 20 amp circuit?
Yes, the rating is actually 15 amps. A refrigerator draws 2.5 amps when it’s running and an additional 4 amps when the compressors are on. A typical 15 amp circuit has a maximum capacity of 15 amps or 1,875 watts. The refrigerator’s working circuits draw 2.5 x 2 (5 amps) + 4 (8.5) = 21.5 amps. So this circuit would be overloaded and potentially unsafe. On a 20 amp circuit, the refrigerator’s circuits draw 2.5 x 2 (5 amps) + 4 (8.5) = 21.5 amps.
How many refrigerators can be on a 20 amp circuit?
The NEC indicates that if a branch circuit supplies two or more appliances, the branch circuit should be sized to supply the total load demand of the appliances. The branch circuit should be sized to carry not less than 125% of the total nameplate rating of the equipment. The branch circuit should be protected by a 20 amp fuse or a circuit breaker. So in the question, I assume that there are 4 appliances on the branch circuit. That is, the refrigerator and the three lights. The total load demand is 3 x 12.5 amps = 37.5 amps. The 125% rule means 37.5 x 1.25 = 47.75 amps. The total allowable current on the branch circuit is 50 amps, so the branch circuit is sufficiently oversized.